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Inhaltsverzeichnis

RAID

MegaRAID Controller

  • Predictive Failure Count beim Controller - E-Mails zB:
Controller ID:  0   PD Predictive failure:  
    -:-:3
Event ID:96
Generated On: Mon Sep 02 14:29:04 CEST 2019
  • Festplatte wird „bald“ kaputt werden - Austausch empfohlen - Slot beginnt orange zu blinken
  • Sicht auf den Server - In diesem Beispiel bezieht es sich auf Slot 3 im Server

LSI Storage Authority Avago

  • Beim Versuch des Web Logins zur verwaltung des Controllers wird immer wieder LSI Storage Authority Error Code 49 Invalid Credentials geworfen
  • ACHTUNG SPRACHE DES eingesetzten OS - Gruppe der „Administratoren“ bei deutscher Windows Version hat vollen Zugriff nicht Administrators

* https://www.thomas-krenn.com/de/wiki/LSI_Storage_Authority_Error_Code_49_Invalid_Credentials 

Lösung

Zur Behebung des Problems passen Sie die Konfigurationsdatei LSA.conf folgendermaßen an:[1]

    Stoppen Sie den LSAService in Windows Services
    Editieren sie die LSA config file (LSA.conf)

        C:\Program Files(x86)\LSI\LSIStroageAuthority\conf\LSA.conf

    Überprüfen Sie folgenden Befehl: full_access_groups = Administrators

        Hier muss je nach Sprache dies angepasst werden:
            Französisch = full_access_groups = Administrateurs
            Deutsch = full_access_groups = Administratoren
            Spanish = full_access_groups = Administradores
            Russisch = full_access_groups = Администраторы oder Administratory

    Sobald Sie Punkt 3 durchgeführt und gespeichert haben, müssen sie den LSAService neustarten.

Nach dem Ausführen dieser Schritte sollten Sie sich wieder ohne Probleme anmelden können.
Einzelnachweise

IPMI

ThinkServer Server Spezielles

  • Zumindest bei TD340 Remote Management
    • Achtung kein vollwertiges KVM Remote Management möglich über Konsole
    • Es muss ein Hardware dongle am Mainboard gesteckt werden !!! d.h. Server runterfahren raus aus dem Rack , zerlegen ..

ThinkServer Management Module

  • Default Username/Passwort ist NICHT unbedingt lenovo/lenovo (Server: Lenovo ThinkServer TD340 )
  • Username: lenovo , Password: len0vO

Supermicro IPMI Password Reset - GUI Fuckup did not take password nevertheless changed it

Linux Boot CD

boot grml live



You probably need to load the IPMI kernel modules:

modprobe ipmi_devintf
modprobe ipmi_si

You can add these to /etc/modules to have them loaded automatically (just list the module names):

ipmi_devintf
ipmi_si



ipmitool -I open user set password 2 ADMIN

The number 2 there is the user id. The ADMIN account defaults to user id 2. So I'm setting user id 2's password to ADMIN which is the default, but you could put any other password there.

Windows IPMICFG Tool

C:\TMP\IPMICFG_1.31.0_build.200205\IPMICFG_1.31.0_build.200205\Windows\64bit>.\IPMICFG-Win.exe -user setpwd 2 ADMIN123!
Done.

C:\TMP\IPMICFG_1.31.0_build.200205\IPMICFG_1.31.0_build.200205\Windows\64bit>.\IPMICFG-Win.exe -user list
Maximum number of Users          : 10
Count of currently enabled Users : 1
User ID | User Name        | Privilege Level | Enable
------- | ---------        | --------------- | ------
      2 | ADMIN            | Administrator   | Yes

C:\TMP\IPMICFG_1.31.0_build.200205\IPMICFG_1.31.0_build.200205\Windows\64bit>

HP ILO - Upgrade Firmware via Web Access

  • Über die Web GUI unter Administration - Firmware → das *.bin File hochladen ( Signature checks usw. werden durch das ILO durchgeführt)
  • Bei den Firmware Updates die .scexe Datei runterladen und entpacken
  • HP Quote von der Website: 
 To obtain firmware image for updating via iLO user interface, utilities, or scripting interface:
Download the SCEXE file to a client running a Linux operating system.  Execute: sh  CP0xxxxx.scexe --unpack=directory
This command will unpack the ilo4_1XX.bin into a user specified "directory". If the directory does not exist, the unpacker will attempt to create it.

WLAN Controller

Aruba 7010

  • Default gateway über Web GUI lässt sich nicht ändern es bleibt der Alte
  • Zugriff per SSH im richtigen Konfigurationskontext (Cisco lässt grüßen)
(controller) >enable
Password:****
Password:****

(controller) #show ip route

Codes: C - connected, O - OSPF, R - RIP, S - static
       M - mgmt, U - route usable, * - candidate default, V - RAPNG VPN

Gateway of last resort is Imported from DHCP to network 0.0.0.0 at cost 10
Gateway of last resort is Imported from CELL to network 0.0.0.0 at cost 10
Gateway of last resort is Imported from PPPOE to network 0.0.0.0 at cost 10
C    IP_NETWORK/MASK is directly connected, VLAN1
C    IP_NETWORK/MASK is directly connected, VLAN100
C    IP_NETWORK/MASK is directly connected, VLAN101

(controller) #show running-config | include gateway
Building Configuration...
ip default-gateway IP_DEFAULT_GATEWAY

(controller) #configure terminal 
Enter Configuration commands, one per line. End with CNTL/Z

(controller) (config) #no ip default-gateway IP_CURRENT_DEFAULT_GATEWAY
(controller) (config) #ip default-gateway IP_NEW_DEFAULT_GATEWAY
(controller) (config) #write memory 
Saving Configuration...

Configuration Saved.

(controller) (config) #exit
(controller) #show running-config | include gateway
Building Configuration...
ip default-gateway IP_NEW_DEFAULT_GATEWAY
  • Controller herunter fahren
(BRG-Neusiedl) #halt  
WARNING: THIS COMMAND WILL TERMINATE ALL WEBUI, TELNET AND SSH SESSIONS.
Please only execute this command from the local console.
Do you really want to halt the system(y/n): y
System will now halt! Please wait...Connection closed by foreign host.
Connection to wific1.schule.intern closed.

Software

nagios signal notifications

Ubuntu/Debian: sudo apt-get install default-jre

signal-cli -u +436641234567 register
signal-cli -u +436641234567 verify CODE-FROM-SIGNAL-VIA-SMS
signal-cli -u +436641234567 (SENDER) send -m "foo" +438716213 (EMPFÄNGER)

Auth Infos werden unter ~/.local abgelegt d.h. Benutzerenvironment beachten und für nagios kopieren
  • Icinga/Nagios Konfiguration
#signal Notification commands

define command {
        command_name    notify-host-by-signal
        command_line    /opt/signal-cli/bin/signal-cli -u +436641234567 send -m '$NOTIFICATIONTYPE$ Host : $HOSTNAME$ is $HOSTSTATE$ @ $LONGDATETIME$' $_CONTACTSIGNAL$
}
 
define command {
        command_name    notify-service-by-signal
        command_line     /opt/signal-cli/bin/signal-cli -u +436641234567  send  -m '$NOTIFICATIONTYPE$ Host : $HOSTNAME$ - Service : $SERVICEDESC$ is $SERVICESTATE$ @ $LONGDATETIME$' $_CONTACTSIGNAL$
}


#Contact definition

define contact{
        contact_name                    root
        alias                           Root
        service_notification_period     24x7
        host_notification_period        24x7
        service_notification_options    w,u,c,r
        host_notification_options       d,r
        service_notification_commands   notify-service-by-email notify-service-by-signal
        host_notification_commands      notify-host-by-email notify-host-by-signal
        email                           monitoring@pannoniait.at
        _signal                         +436641234567

         

        }
  • Location für shared Secret für Authentifizierung
root@mrMonitoring:/var/lib/nagios# grep nagios /etc/passwd
nagios:x:116:124::/var/lib/nagios:/bin/false
root@mrMonitoring:/var/lib/nagios# ls -al /var/lib/nagios/.local/
total 12
drwx------ 3 nagios nagios 4096 Jul 15 13:08 .
drwxr-xr-x 3 nagios nagios 4096 Jul 15 13:17 ..
drwx------ 3 nagios nagios 4096 Jul 15 13:08 share
root@mrMonitoring:/var/lib/nagios# ls -al /var/lib/nagios/.local/share/
total 12
drwx------ 3 nagios nagios 4096 Jul 15 13:08 .
drwx------ 3 nagios nagios 4096 Jul 15 13:08 ..
drwx------ 3 nagios nagios 4096 Jul 15 13:08 signal-cli
root@mrMonitoring:/var/lib/nagios# ls -al /var/lib/nagios/.local/share/signal-cli/
total 12
drwx------ 3 nagios nagios 4096 Jul 15 13:08 .
drwx------ 3 nagios nagios 4096 Jul 15 13:08 ..
drwx------ 2 nagios nagios 4096 Jul 15 13:08 data
  • Neuere Versionen von signal-cli mit Captcha
nagios@mrMonitoring:/opt/signal-cli$ /opt/signal-cli/bin/signal-cli --config /var/lib/nagios/.local/share/signal-cli/data/ -u +43_NUMBER register
Captcha required for verification, use --captcha CAPTCHA
To get the token, go to https://signalcaptchas.org/registration/generate.html
Check the developer tools (F12) console for a failed redirect to signalcaptcha://
Everything after signalcaptcha:// is the captcha token.
nagios@mrMonitoring:/opt/signal-cli$ /opt/signal-cli/bin/signal-cli --config /var/lib/nagios/.local/share/signal-cli/data/ -u +43_NUMBER_SENDER register --captcha "CAPTCHA_INFO_HIER"
nagios@mrMonitoring:/opt/signal-cli$ /opt/signal-cli/bin/signal-cli --config /var/lib/nagios/.local/share/signal-cli/data/ -u +43_NUMBER_SENDER verify NUMBERS_VERIFY_CODE
nagios@mrMonitoring:/opt/signal-cli$ /opt/signal-cli/bin/signal-cli --config /var/lib/nagios/.local/share/signal-cli/data/ -u +43_NUMBER_SENDER send -m "foo" +43_NUMBER_RECIPIENT
65435434


-- https://signalcaptchas.org/registration/generate.html - aus der console bei developer tools den link ablesen fürs captcha

nagios performance data

Performance data

Nagios 3 and newer will concatenate the parts following a "|" in a) the first line output by the plugin, and b) in the second to last line, into a string it passes to whatever performance data processing it has configured. (Note that it currently does not insert additional whitespace between both, so the plugin needs to provide some to prevent the last pair of a) and the first of b) getting run together.) Please refer to the Nagios documentation for information on how to configure such processing. However, it is the responsibility of the plugin writer to ensure the performance data is in a "Nagios Plugins" format.

This is the expected format:

'label'=value[UOM];[warn];[crit];[min];[max]

Notes:

    space separated list of label/value pairs
    label can contain any characters except the equals sign or single quote (')
    the single quotes for the label are optional. Required if spaces are in the label
    label length is arbitrary, but ideally the first 19 characters are unique (due to a limitation in RRD). Be aware of a limitation in the amount of data that NRPE returns to Nagios
    to specify a quote character, use two single quotes
    warn, crit, min or max may be null (for example, if the threshold is not defined or min and max do not apply). Trailing unfilled semicolons can be dropped
    min and max are not required if UOM=%
    value, min and max in class [-0-9.]. Must all be the same UOM. value may be a literal "U" instead, this would indicate that the actual value couldn't be determined
    warn and crit are in the range format (see the Section called Threshold and Ranges). Must be the same UOM
    UOM (unit of measurement) is a string of zero or more characters, NOT including numbers, semicolons, or quotes. Some examples:

        no unit specified - assume a number (int or float) of things (eg, users, processes, load averages)
        s - seconds (also us, ms)
        % - percentage
        B - bytes (also KB, MB, TB)
        c - a continous counter (such as bytes transmitted on an interface)

It is up to third party programs to convert the Nagios Plugins performance data into graphs.

nagios custom plugins exit codes

  • Achtung Interpreter bei eigenem plugin nicht vergessen e.g. #!/bin/bash sonst u.a. „No output returned bei daemon“ Fehlermeldung
Exit Code	Status
0	OK
1       WARNING
2	CRITICAL
3	UNKNOWN
Plugin Output for Nagios

You should always print something to STDOUT that tells if the service is working or why it is failing. Try to keep the output short - probably less that 80 characters. Remember that you ideally would like the entire output to appear in a pager message, which will get chopped off after a certain length.

As Nagios does not capture stderr output, you should only output to STDOUT and not print to STDERR.
Print only one line of text

Starting with version 3, Nagios will process plugins' multi-line output, which should be formatted as:

SERVICE STATUS: First line of output | First part of performance data
Any number of subsequent lines of output, but note that buffers
may have a limited size | Second part of performance data, which
may have continuation lines, too

Note, however, that the default configs still do not include the output's continuation lines into the notifications sent when Nagios notifies contacts about potential problems. Thus, keep your output short and to the point.

Output should be in the format:

SERVICE STATUS: Information text

However, note that this is not a requirement of the API, so you cannot depend on this being an accurate reflection of the status of the service - the status should always be determined by the return code.
Verbose Output

Use the -v flag for verbose output. You should allow multiple-v options for additional verbosity, up to a maximum of 3. The standard type of output should be:

Table 1. Verbose output levels
Verbosity level	Type of output
0	Single line, minimal output. Summary
1	Single line, additional information (eg list processes that fail)
2	Multi line, configuration debug output (eg ps command used)
3	Lots of detail for plugin problem diagnosis
Screen Output

The plugin should print the diagnostic and just the usage part of the help message. A well written plugin would then have --help as a way to get the verbose help.

Code and output should try to respect the 80x25 size of a crt (remember when fixing stuff in the server room!)
Plugin Return Codes

The return codes below are based on the POSIX spec of returning a positive value. Netsaint prior to v0.0.7 supported non-POSIX compliant return code of "-1" for unknown. Nagios supports POSIX return codes by default.

Note: Some plugins will on occasion print on STDOUT that an error occurred and error code is 138 or 255 or some such number. These are usually caused by plugins using system commands and having not enough checks to catch unexpected output. Developers should include a default catch-all for system command output that returns an UNKNOWN return code.

Table 2. Plugin Return Codes
Numeric Value	Service Status	Status Description
0	OK	The plugin was able to check the service and it appeared to be functioning properly
1	Warning	The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2	Critical	The plugin detected that either the service was not running or it was above some "critical" threshold
3	Unknown	Invalid command line arguments were supplied to the plugin or low-level failures internal to the plugin (such as unable to fork, or open a tcp socket) that prevent it from performing the specified operation. Higher-level errors (such as name resolution errors, socket timeouts, etc) are outside of the control of plugins and should generally NOT be reported as UNKNOWN states.

dokuwiki twofactorauth

  • Anforderungen: 2 Faktor Authentifizierung mit dokuwiki und google „Authenticator“
  • Installation der erforderlichen Plugins (Achtung Abhängigkeiten werden nicht automatisch aufgelöst)

  • Plugins aktivieren

  • Nach Anmeldung durch User kann die 2 Faktor Authentifizierung aktiviert werden / Mit dem Google Authenticator

  • QR Code einscannen und Code eintragen für Aktivierung

  • Authentifizierungs Token wird nun benötigt beim Login

Switches STP/RSTP/MSTP/Loopdetect

  • Um Loops erkennen zu können reicht oft schon loopback-detection loopback-protection
  • Es muss nicht immer STP/RSTP/MSTP sein - dort sollten die Ports zu den Endgeräten als edge ports definiert werden / In erster Linie ist RSTP/STP/MSTP für Redundanz gedacht und nicht als „loop prevention“ / Vor allem bei Setups mit einer großen Anzahl an Access Switches sollten die RSTP/STP/MSTP Paramter angepasst werden wie zB: priority root bridge edge ports - sonst konvergiert die Topologie sehr schlecht bemerkbar durch eine hohe Latenz wenn zB: eine Lease gezogen wird von einem Endgerät kurz nachdem das Interface up geht
  • loopback-detect bei Comware/HPE Switches:
  • zB: zuerst global aktivieren und dann auf einer Interface range von 1 bis 48 / interface blockieren und kein shutdown - shutdown muss manuell terminiert werden d.h. undo vom shutdown damit da interface wieder hochkommt
<switch05>xtd-cli-mode 
All commands can be displayed and executed in extended CLI mode. Switch to extended CLI mode? [Y/N]:y
Password:
Warning: Extended CLI mode is intended for developers to test the system. Before using commands in extended CLI mode, contact the Technical Support and make sure you know the potential impact on the device and the network.


<switch05>system-view 

[switch05]loopback-detection global enable vlan all

[switch05]interface range g1/0/1 to g1/0/48
[switch05-if-range]loopback-detection enable vlan all
[switch05-if-range]loopback-detection action block

[switch05-if-range]exit
[switch05]write changed 

<switch05>display loopback-detection 
Loopback detection is enabled.
Loopback detection interval is 30 second(s).
No loopback is detected.
  • Im logging zB: per syslog erhält man folgende Einträge
Feb  1 06:47:47 IP %%10LPDT/4/LPDT_VLAN_LOOPED: Loopback exists on GigabitEthernet1/0/43 in VLAN 1.
Feb  1 06:47:47 IP %%10LPDT/4/LPDT_LOOPED: Loopback exists on GigabitEthernet1/0/41.
Feb  1 06:47:47 IP %%10LPDT/4/LPDT_VLAN_LOOPED: Loopback exists on GigabitEthernet1/0/41 in VLAN 1.
Feb  1 06:49:09 IP %%10LPDT/5/LPDT_VLAN_RECOVERED: Loopback on Ten-GigabitEthernet1/0/49 in VLAN 1 recovered.
Feb  1 06:49:09 IP %%10LPDT/5/LPDT_RECOVERED: Loopback on Ten-GigabitEthernet1/0/49 recovered.
Feb  1 06:49:09 IP %%10LPDT/5/LPDT_VLAN_RECOVERED: Loopback on Ten-GigabitEthernet1/0/52 in VLAN 1 recovered.

Thunderbird

  • User Agent aus Mails entfernen / general.useragent.override leerer String





dokuwiki

  • Darstellungsfehler nach Installation von Extension für Upgrades
  • Aufgetreten auf: Ubuntu 18.04 / dokuwiki Upgrade von Version von 2015 auf 2020
root@doku:~# cat dokuwiki_css_errors 
vim /var/www/doku/lib/exe/css.php +174
->     $less->importDir=array();
 array() definition before

sortablejs errors
root@doku:/var/www/doku/lib/plugins# rm -rf sortablejs/

Hardware

Dell - R710

  • Dist-Upgrade in Place von 2012r2 auf 2019 ist möglich , getestet über RDP , Server dient ausschließlich als Hyper-V Host und Urbackup läuft darauf
  • Achtung nach Upgrade gibt es keine Netzwerkverbindung , offenbar gibt es hier einen Bug betreffend der Netzwerkkarten in Kombination mit Hyper-V , alle virtuellen Switches werden auf „Privat“ gesetzt . Nach Deinstallation der Netzwerkkarten und manueller Neukonfiguration flutscht es wieder
  • Beim Versuch auf 2016 upzugraden hing er bei 31% und machte schlussendlich einen rollback
  • Original Dell Battery Pack:

  • Nachbau Amazon:

  • Infos der Raid Controller Software:

APC - USV - Smart-UPS 750

  • Batterie austauschen / Wenn sie eine defekte Batterie anzeigt
  • Austauschbatterie RBC48 für APC Smart-UPS 750
  • Kann im laufenden Betrieb getauscht werden
  • Abdeckung öffnen

  • Alte Batterie bei Lasche sanft herausziehen

  • Neue Batterie reingleiten lassen bis sie ansteht

  • Sollte er weiterhin eine defekte Batterie anzeigen / warten bis sie aufgeladen wurde / ein paar Sekunden auf Test drücken - Achtung die Batterie wird 10 Sekunden unter Spannung genommen und „überprüft“ / alles sollte wieder grün leuchten :)

APC - USV - Management Card

HP Microserver Gen10 Plus

  • Getestet Variante mit 8GB RAM und Intel Gold G5420 CPU BIOS U48 2.20 (27.10.2020)
  • Achtung bei Software RAID
  • Intelligent Provisioning funktioniert nicht / UEFI - SW RAID Controller / Treiber für Software RAID muss manuell geladen werden (SmartDQ.inf) bei der Installation (Das ist der Richtige: https://support.hpe.com/hpesc/public/swd/detail?swItemId=MTX_5b8eac1a8fe144b4ae4f537c75 - cp043250.exe )
  • 4TB Samsung EVO SSD wird grundsätzlich vom Software RAID (Storage Administrator über Intelligent Provisioning) erkannt:

  • 4TB Western Digital RED SA500 4TB wird ebenfalls erkannt (siehe RAID1 Test Software RAID)

Software RAID Tests S100i

  • Tests für die Windows Welt / Linux ist mit AHCI Mode SATA Platten und mdadm zufrieden :-D
  • Im Windows gibt es keine vernünftige onboard Software RAID Lösung FIXME
  • Es wurde immer eine Standard Windows Installation durchgeführt / UEFI / S100 Software RAID Modus / gleich nach der Installation wurde die Performance getestet außer bei RAID5 siehe Info
  • windows2016-8gb-ram-intel-gold-s100i-raid10-wd-red-2tb (4x WD RED 2TB, legacy disks)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):   267.799 MB/s [    255.4 IOPS] < 31080.81 us>
  SEQ    1MiB (Q=  1, T= 1):   208.463 MB/s [    198.8 IOPS] <  5026.58 us>
  RND    4KiB (Q= 32, T= 1):     4.280 MB/s [   1044.9 IOPS] < 30321.43 us>
  RND    4KiB (Q=  1, T= 1):     0.607 MB/s [    148.2 IOPS] <  6733.51 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   267.846 MB/s [    255.4 IOPS] < 31023.84 us>
  SEQ    1MiB (Q=  1, T= 1):   243.702 MB/s [    232.4 IOPS] <  4296.21 us>
  RND    4KiB (Q= 32, T= 1):     2.805 MB/s [    684.8 IOPS] < 46330.22 us>
  RND    4KiB (Q=  1, T= 1):     2.585 MB/s [    631.1 IOPS] <  1579.26 us>

Profile: Default
   Test: 1 GiB (x5) [C: 0% (11/3725GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/08 15:04:17
     OS: Windows Server 2016 Server Standard (full installation) [10.0 Build 14393] (x64)
  • windows2019-8gb-ram-intel-gold-s100i-raid-raid10-wd-red-2tb (4x WD RED 2TB, legacy disks) 
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):   300.299 MB/s [    286.4 IOPS] < 27643.07 us>
  SEQ    1MiB (Q=  1, T= 1):   210.338 MB/s [    200.6 IOPS] <  4962.84 us>
  RND    4KiB (Q= 32, T= 1):     4.359 MB/s [   1064.2 IOPS] < 29797.25 us>
  RND    4KiB (Q=  1, T= 1):     0.593 MB/s [    144.8 IOPS] <  6889.28 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   239.316 MB/s [    228.2 IOPS] < 34810.64 us>
  SEQ    1MiB (Q=  1, T= 1):    65.638 MB/s [     62.6 IOPS] < 15942.03 us>
  RND    4KiB (Q= 32, T= 1):     1.789 MB/s [    436.8 IOPS] < 72190.45 us>
  RND    4KiB (Q=  1, T= 1):     0.289 MB/s [     70.6 IOPS] < 14102.20 us>

Profile: Default
   Test: 1 GiB (x5) [C: 0% (11/3725GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/08 17:05:44
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • windows2019-8gb-ram-intel-gold-s100i-raid-raid10-samsung-evo-500gb (4x 500 GB Samsung 860 EVO SSD, RAID 10)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):  1923.636 MB/s [   1834.5 IOPS] <  4352.23 us>
  SEQ    1MiB (Q=  1, T= 1):  1177.983 MB/s [   1123.4 IOPS] <   889.57 us>
  RND    4KiB (Q= 32, T= 1):   409.800 MB/s [ 100048.8 IOPS] <   312.40 us>
  RND    4KiB (Q=  1, T= 1):    47.919 MB/s [  11699.0 IOPS] <    85.32 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   464.260 MB/s [    442.8 IOPS] < 17985.56 us>
  SEQ    1MiB (Q=  1, T= 1):   294.616 MB/s [    281.0 IOPS] <  3555.97 us>
  RND    4KiB (Q= 32, T= 1):    52.429 MB/s [  12800.0 IOPS] <  2495.48 us>
  RND    4KiB (Q=  1, T= 1):     2.205 MB/s [    538.3 IOPS] <  1855.12 us>

Profile: Default
   Test: 1 GiB (x5) [C: 1% (11/931GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/09 16:53:40
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • windows2019-8gb-ram-intel-gold-s100i-raid-raid5-still-initializing-samsung-evo-500gb ( 4x Samsung 860 EVO 500GB , RAID5 )
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):  1939.709 MB/s [   1849.9 IOPS] <  4279.09 us>
  SEQ    1MiB (Q=  1, T= 1):  1070.043 MB/s [   1020.5 IOPS] <   979.29 us>
  RND    4KiB (Q= 32, T= 1):   404.744 MB/s [  98814.5 IOPS] <   316.02 us>
  RND    4KiB (Q=  1, T= 1):    47.503 MB/s [  11597.4 IOPS] <    86.02 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   167.128 MB/s [    159.4 IOPS] < 49750.99 us>
  SEQ    1MiB (Q=  1, T= 1):   116.178 MB/s [    110.8 IOPS] <  9013.80 us>
  RND    4KiB (Q= 32, T= 1):     9.607 MB/s [   2345.5 IOPS] < 13594.10 us>
  RND    4KiB (Q=  1, T= 1):     2.007 MB/s [    490.0 IOPS] <  2038.83 us>

Profile: Default
   Test: 1 GiB (x5) [C: 1% (11/1397GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/10 11:57:57
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • windows2019-8gb-ram-intel-gold-s100i-raid-raid5-working-raid-samsung-evo-500gb (4x 500GB Samsung 860 EVO , RAID5 finished)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):  1952.294 MB/s [   1861.9 IOPS] <  4242.93 us>
  SEQ    1MiB (Q=  1, T= 1):  1072.455 MB/s [   1022.8 IOPS] <   977.18 us>
  RND    4KiB (Q= 32, T= 1):   404.142 MB/s [  98667.5 IOPS] <   313.92 us>
  RND    4KiB (Q=  1, T= 1):    48.063 MB/s [  11734.1 IOPS] <    85.05 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   147.002 MB/s [    140.2 IOPS] < 56671.01 us>
  SEQ    1MiB (Q=  1, T= 1):   106.959 MB/s [    102.0 IOPS] <  9779.59 us>
  RND    4KiB (Q= 32, T= 1):     9.537 MB/s [   2328.4 IOPS] < 13700.44 us>
  RND    4KiB (Q=  1, T= 1):     2.009 MB/s [    490.5 IOPS] <  2036.38 us>

Profile: Default
   Test: 1 GiB (x5) [C: 1% (11/1397GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/10 12:37:57
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • windows2019-8gb-ram-intel-gold-s100i-raid-raid1-wd-red-sa500-4tb (2x 4TB WD RED SA500, RAID1)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):  1113.818 MB/s [   1062.2 IOPS] <  7516.94 us>
  SEQ    1MiB (Q=  1, T= 1):   721.250 MB/s [    687.8 IOPS] <  1453.19 us>
  RND    4KiB (Q= 32, T= 1):   405.010 MB/s [  98879.4 IOPS] <   321.88 us>
  RND    4KiB (Q=  1, T= 1):    38.070 MB/s [   9294.4 IOPS] <   107.36 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   252.066 MB/s [    240.4 IOPS] < 33103.10 us>
  SEQ    1MiB (Q=  1, T= 1):   204.272 MB/s [    194.8 IOPS] <  5126.56 us>
  RND    4KiB (Q= 32, T= 1):    30.194 MB/s [   7371.6 IOPS] <  4301.41 us>
  RND    4KiB (Q=  1, T= 1):     6.959 MB/s [   1699.0 IOPS] <   587.67 us>

Profile: Default
   Test: 1 GiB (x5) [C: 0% (11/3725GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/12 16:26:27
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • windows-2019-16gb-ram-intel-xeon-s100i-raid-raid10-wd-red-pro-4tb
------------------------------------------------------------------------------
CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
  SEQ    1MiB (Q=  8, T= 1):   633.306 MB/s [    604.0 IOPS] < 13218.15 us>
  SEQ    1MiB (Q=  1, T= 1):   474.579 MB/s [    452.6 IOPS] <  2207.90 us>
  RND    4KiB (Q= 32, T= 1):     5.724 MB/s [   1397.5 IOPS] < 22638.94 us>
  RND    4KiB (Q=  1, T= 1):     0.942 MB/s [    230.0 IOPS] <  4342.87 us>

[Write]
  SEQ    1MiB (Q=  8, T= 1):   470.154 MB/s [    448.4 IOPS] < 17709.13 us>
  SEQ    1MiB (Q=  1, T= 1):   124.802 MB/s [    119.0 IOPS] <  8390.17 us>
  RND    4KiB (Q= 32, T= 1):     5.405 MB/s [   1319.6 IOPS] < 24114.28 us>
  RND    4KiB (Q=  1, T= 1):     4.406 MB/s [   1075.7 IOPS] <   928.29 us>

Profile: Default
   Test: 1 GiB (x5) [D: 0% (0/7146GiB)]
   Mode: [Admin]
   Time: Measure 5 sec / Interval 5 sec 
   Date: 2021/04/21 17:15:43
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)

HP Smart Array P440

  • RAID Levels aus den Quick Specs

HP 255 G7

  • Factory Reset - Start → ESC → es erscheint ein Menü mit Punkten → F11 Factory dafaults und den Anweisungen folgen

HP ProBook 440 G7

Bus 003 Device 003: ID 0ea0:7301 Ours Technology, Inc. SmartKMLink
  • Performance Tests - MTU und Window Sizes alles default
root@mrWhiteGhost:/home/urnilxfgbez# iperf -c 192.168.1.1 -t 300 -i 60
------------------------------------------------------------
Client connecting to 192.168.1.1, TCP port 5001
TCP window size:  476 KByte (default)
------------------------------------------------------------
[  3] local 192.168.1.2 port 45776 connected with 192.168.1.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-60.0 sec  8.99 GBytes  1.29 Gbits/sec
[  3] 60.0-120.0 sec  8.97 GBytes  1.28 Gbits/sec
[  3] 120.0-180.0 sec  8.99 GBytes  1.29 Gbits/sec
[  3] 180.0-240.0 sec  8.98 GBytes  1.29 Gbits/sec
[  3] 240.0-300.0 sec  8.98 GBytes  1.29 Gbits/sec
[  3]  0.0-300.0 sec  44.9 GBytes  1.29 Gbits/sec

root@mrWhiteGhost:/home/urnilxfgbez# ip addr ls usb0
8: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000
    link/ether 8e:0b:6e:2c:e1:d2 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global usb0
       valid_lft forever preferred_lft forever
root@mrWhiteGhost:/home/urnilxfgbez# ethtool usb0
Settings for usb0:
	Current message level: 0x00000007 (7)
			       drv probe link
	Link detected: yes

ZOTAC ZBOX CI527

  • Linux Mint 19 Mate 64Bit
  • Problem:
    • angesteckt per HDMI auf Sony Bravia TV - Auflösung bei maximal 1024×768 Ausschnitt komplett verkleinert - kein Vollbild
    • Beim Bootvorgang kein Bild (ROOT ist verschlüsselt) - Umstieg auf 4.18 generic Kernel dann ok (achtung Module installieren für Kernel sonst kein USB bei cryptsetup Passworteingabe)
  • Lösung: DisplayPort auf HDMI Adapter einstecken bei Display Port zB: https://www.amazon.de/gp/product/B010SDZZ80/ref=ppx_yo_dt_b_asin_title_o01__o00_s00?ie=UTF8&psc=1
  • Hintegrund: Offenbar gibt es Bug im Kernel der bis zu 4.18 reicht - Kernel Fehlermeldung zeugt davon in den Logs (*…link..intel…*) - Kabylake flanscht HDMI und Display Port zusammen - bekommt ihm offenbar nicht

HP ML350 Gen9 / HP Microserver gen8

  • Achtung Broadcom Netzwerkkarten
  • hat Zusammenhang mit 32Bit Ubuntu 18.04 4.15er Kernel Installation
  • Deaktivieren von VMQ in GUI und powershell hat in diesem Fall NICHTS gebracht
    • Intel 350 Dual Interface Karte wurde installiert !!!
    • Broadcom Firmware/Treiber Upgrades von der HP Seite installiert (>202)
  • Microsoft Quote:
Cause
This is a known issue with Broadcom NetXtreme 1-gigabit network adapters that use the b57nd60a.sys driver, when VMQ is enabled on the network adapter. (By default, VMQ is enabled by the Broadcom network driver.)

Broadcom designates these network adapters as 57xx based chipsets. They include 5714, 5715, 5717, 5718, 5719, 5720, 5721, 5722, 5723, and 5780. 
These network adapters are also sold under different model numbers by some server OEMs. HP sells these drivers under model numbers NC1xx, NC3xx, and NC7xx. You may be using driver version 16.2, 16.4, or 16.6, depending on which OEM version you are using or whether you are using the Broadcom driver version. 
Resolution
This issue is resolved in Broadcom driver b57nd60a.sys version 16.8 and newer. In March 2015, Broadcom published driver version 17.0 for download. In April 2015, HP published version 16.8 of the driver for their affected network adapters, here is one of their download locations. Please contact your server OEM if you need a driver that is specific to your server.

If you are unable to update your network adapter driver to resolve the issue, you can work around the issue by disabling VMQ on each affected Broadcom network adapter by using the Set-NetAdapterVmq Windows PowerShell command. For example, if you have a dual-port network adapter, and if the ports are named NIC 1 and NIC 2 in Windows, you would disable VMQ on each adapter by using the following commands:

Set-NetAdapterVmq -Name "NIC 1" -Enabled $False
Set-NetAdapterVmq -Name "NIC 2" -Enabled $False
You can confirm that VMQ is disabled on the correct network adapters by using the Get-NetAdapterVmq Windows PowerShell command.

Note By default, VMQ is disabled on the Hyper-V virtual switch for virtual machines that are using 1-gigabit network adapters. VMQ is enabled on a Hyper-V virtual switch only when the system is using 10-gigabit or faster network adapters. This means that by disabling VMQ on the Broadcom network adapter, you are not losing network performance or any other benefits because this is the default. However, you need to do this to work around the driver issue.

Get-NetAdapterVmqQueue shows the virtual machine queues (VMQs) that are allocated on network adapters. You will not see any virtual machine queues that are allocated to 1-gigabit network adapters by default.
  • Symptome:
    • Netzwerkverbindung zu den virtuellen Maschinen fällt aus
    • Virtuelle Maschinen können nicht mehr heruntergefahren werden (Problem mit Netzwerk) trifft Linux, Windows..
    • Nur ein Kaltstart des Hostsystems regeneriert die Lage

Hardware RAID Controller 7.2k RAID1 vs SSD RAID10

  • Avago MegaRAID RAID SAS 9361-8i Controller (mit Battery Pack)
  • SSD RAID10
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q=  8, T= 1):  2917.503 MB/s [   2782.3 IOPS] <  2872.92 us>
Sequential 1MiB (Q=  1, T= 1):  1146.174 MB/s [   1093.1 IOPS] <   913.20 us>
    Random 4KiB (Q= 32, T=16):   479.321 MB/s [ 117021.7 IOPS] <  4370.88 us>
    Random 4KiB (Q=  1, T= 1):    33.044 MB/s [   8067.4 IOPS] <   123.25 us>

[Write]
Sequential 1MiB (Q=  8, T= 1):  1079.696 MB/s [   1029.7 IOPS] <  7743.43 us>
Sequential 1MiB (Q=  1, T= 1):  1051.736 MB/s [   1003.0 IOPS] <   994.51 us>
    Random 4KiB (Q= 32, T=16):   162.600 MB/s [  39697.3 IOPS] < 12873.30 us>
    Random 4KiB (Q=  1, T= 1):    63.628 MB/s [  15534.2 IOPS] <    63.89 us>

Profile: Default
   Test: 1 GiB (x5) [Interval: 5 sec] <DefaultAffinity=DISABLED>
   Date: 2020/06/17 13:21:10
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)
  • SAS 7.2k RAID1 
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
                                  Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q=  8, T= 1):   512.458 MB/s [    488.7 IOPS] < 16287.11 us>
Sequential 1MiB (Q=  1, T= 1):   434.599 MB/s [    414.5 IOPS] <  2409.16 us>
    Random 4KiB (Q= 32, T=16):    12.390 MB/s [   3024.9 IOPS] <162041.59 us>
    Random 4KiB (Q=  1, T= 1):     1.385 MB/s [    338.1 IOPS] <  2946.58 us>

[Write]
Sequential 1MiB (Q=  8, T= 1):   293.193 MB/s [    279.6 IOPS] < 28396.52 us>
Sequential 1MiB (Q=  1, T= 1):   282.474 MB/s [    269.4 IOPS] <  3703.09 us>
    Random 4KiB (Q= 32, T=16):    11.424 MB/s [   2789.1 IOPS] <180483.72 us>
    Random 4KiB (Q=  1, T= 1):    10.530 MB/s [   2570.8 IOPS] <   386.99 us>

Profile: Default
   Test: 1 GiB (x5) [Interval: 5 sec] <DefaultAffinity=DISABLED>
   Date: 2020/06/17 13:28:21
     OS: Windows Server 2019 Server Standard (full installation) [10.0 Build 17763] (x64)

SSD Hardware RAID6 vs SSD Hardware RAID10

  • HP ML350 Gen9 - Hardware RAID (Smart Array P440 (PCI Express)) mit 6x WD RED SA500 SSD
  • Intel Xeon E5-2620V4 @ 2.1GHZ (2 Prozessoren) , 64 GB RAM
  • RAID6 - alle Einstellungen default / durchgeführt nach Initialisierung
-----------------------------------------------------------------------
CrystalDiskMark 5.2.1 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :  2006.851 MB/s
  Sequential Write (Q= 32,T= 1) :   190.731 MB/s
  Random Read 4KiB (Q= 32,T= 1) :   592.878 MB/s [144745.6 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :    51.100 MB/s [ 12475.6 IOPS]
         Sequential Read (T= 1) :   879.952 MB/s
        Sequential Write (T= 1) :   213.913 MB/s
   Random Read 4KiB (Q= 1,T= 1) :    35.123 MB/s [  8575.0 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     5.817 MB/s [  1420.2 IOPS]

  Test : 2048 MiB [H: 0.0% (0.6/14903.8 GiB)] (x5)  [Interval=5 sec]
  Date : 2021/03/02 20:00:56
    OS : Windows Server 2012 R2 Server Standard (full installation) [6.3 Build 9600] (x64)
  • RAID10 - alle Einstellungen default 
-----------------------------------------------------------------------
CrystalDiskMark 5.2.1 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :  2048.179 MB/s
  Sequential Write (Q= 32,T= 1) :   854.591 MB/s
  Random Read 4KiB (Q= 32,T= 1) :   589.887 MB/s [144015.4 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :    88.498 MB/s [ 21606.0 IOPS]
         Sequential Read (T= 1) :   905.657 MB/s
        Sequential Write (T= 1) :   318.575 MB/s
   Random Read 4KiB (Q= 1,T= 1) :    34.334 MB/s [  8382.3 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     7.571 MB/s [  1848.4 IOPS]

  Test : 2048 MiB [H: 0.0% (0.5/11177.8 GiB)] (x5)  [Interval=5 sec]
  Date : 2021/03/02 21:54:01
    OS : Windows Server 2012 R2 Server Standard (full installation) [6.3 Build 9600] (x64)

Software RAID1 SSD vs 15K Hardware RAID SAS RAID1

  • HP ML350 Gen9 - Hardware RAID (Smart Array P440 (PCI Express)) mit 2 15K SAS Serverplatten
  • Intel Xeon E5-2620V4 @ 2.1GHZ (2 Prozessoren) , 64 GB RAM
-----------------------------------------------------------------------
CrystalDiskMark 5.2.1 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :   436.417 MB/s
  Sequential Write (Q= 32,T= 1) :   474.819 MB/s
  Random Read 4KiB (Q= 32,T= 1) :    14.301 MB/s [  3491.5 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :   116.758 MB/s [ 28505.4 IOPS]
         Sequential Read (T= 1) :   506.653 MB/s
        Sequential Write (T= 1) :   406.023 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     3.965 MB/s [   968.0 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :    91.430 MB/s [ 22321.8 IOPS]

  Test : 2048 MiB [C: 24.3% (67.7/278.8 GiB)] (x5)  [Interval=5 sec]
  Date : 2019/07/02 14:20:51
    OS : Windows Server 2012 R2 Server Standard (full installation) [6.3 Build 9600] (x64)
  • HP Microserver gen8 - Software RAID1 (Windows 2012r2 Software RAID1 - AHCI Modus, Bessere Leistung , Schreibcache JA, Windows veranlasstes Leeren des Cache deaktivieren) mit 2x 256 GB Samsung SSD (consumer Version, eine 840er und eine 860er EVO )
  • Intel Celeron G1610 2.3GHZ, 4GB RAM
-----------------------------------------------------------------------
CrystalDiskMark 5.2.1 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :  1045.927 MB/s
  Sequential Write (Q= 32,T= 1) :   500.788 MB/s
  Random Read 4KiB (Q= 32,T= 1) :   218.880 MB/s [ 53437.5 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :   119.822 MB/s [ 29253.4 IOPS]
         Sequential Read (T= 1) :   523.572 MB/s
        Sequential Write (T= 1) :   490.762 MB/s
   Random Read 4KiB (Q= 1,T= 1) :    38.264 MB/s [  9341.8 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :    79.639 MB/s [ 19443.1 IOPS]

  Test : 2048 MiB [C: 3.8% (8.9/232.5 GiB)] (x5)  [Interval=5 sec]
  Date : 2015/11/03 1:46:30
    OS : Windows Server 2012 R2 Server Standard (full installation) [6.3 Build 9600] (x64)

HPE1950 - 48G

  • Default Zugang Benutzername: admin Passwort: keines
  • VLAN 10 hinzufügen als „Management“ VLAN für den Switch / tagged auf den 10Gbit Uplink Ports und untagged am Port 48 für direktes Debugging / 172.23.10.11 als Management IP / Im Default VLAN 1 einfach IP „wegnehmen“ d.h. nicht konfigurieren dann gibts auch keinen Zugriff aus dem Default VLAN

  • Variante 2 VLAN konfigurieren Tagged 48,200 , pvid/untagged im VLAN 10 direkt beim interface 47

  • Cli Advanced Modus über SSH - xtd-cli-mode
  • Passwort: foes-bent-pile-atom-ship
<switch-core01>?
User view commands:
  display       Display current system information
  exit          Alias for 'quit'
  initialize    Delete the startup configuration file and reboot system
  ipsetup       IP configuration
  no            Alias for 'undo'
  password      Specify password of local user
  ping          Ping function
  poe           Power over Ethernet
  quit          Exit from current command view
  reboot        Reboot operation
  show          Alias for 'display'
  summary       Display summary information of the device
  telnet        Establish a telnet connection
  transceiver   Enable transceiver phony alarm
  undo          Cancel current setting
  upgrade       Upgrade the system boot file or the Boot ROM program
  xtd-cli-mode  Switch to extended CLI mode to display and execute all commands 
                (special authorization required)

<switch-core01>xtd-cli-mode 
All commands can be displayed and executed in extended CLI mode. Switch to extended CLI mode? [Y/N]:y
Password:
Warning: Extended CLI mode is intended for developers to test the system. Before using commands in extended CLI mode, contact the Technical Support and make sure you know the potential impact on the device and the network.
<switch-core01>?
User view commands:
  archive             Archive configuration
  arp                 Address Resolution Protocol (ARP) module
  backup              Backup operation
  boot-loader         Software image file management
  bootrom             Update/read/backup/restore bootrom
  cd                  Change current directory
  cfd                 Connectivity Fault Detection (CFD) module
  clock               Specify the system clock
  copy                Copy a file
  debugging           Enable system debugging functions
  delete              Delete a file
  diagnostic-logfile  Diagnostic log file configuration
  dir                 Display files and directories on the storage media
  display             Display current system information
  erase               Alias for 'delete'
  exception           Exception information configuration
  exit                Alias for 'quit'
  fdisk               Partition a storage medium
  fixdisk             Check and repair a storage medium
  format              Format a storage medium
  free                Release a connection
  ftp                 Open an FTP connection
  gunzip              Decompress file
  ....
  ....
  • Statische Route hinzufügen - ich möchte 10.0.0.0/24 über 172.23.10.1 / VLAN10 routen

HPE1920 - 48G

  • Default Route hinzufügen am Beispiel Destination 0.0.0.0 , MASK 0.0.0.0 , Next HOP 192.168.64.254

  • Port 47 tagged zu VLAN 40 hinzufügen Hybrid port der untagged im Default VLAN ist und Tagged im VLAN 40

  • Achtung Safeguard Engine deaktivieren !!
  • Sonst nicht nachvollziehbarer Paket loss
  • Default IP: 10.90.90.90

Aruba 5400R zl2

  • Per Default ist DHCP aktiv d.h. er zieht sich eine Lease
  • Zugriff per ssh und web per Default möglich
  • Cli ist kompatibel zu alter Cli von HP Pro Curve Switches - show config :) Interface Namen müssen angepasst werden wegen modularem Aufbau zB: A1-A8 - ist auf Switch ersichtlich
  • oom ist das out of band management d.h. das „Management“ interface
  • Vorhandene Konfigurationen anzeigen und andere Config nach Reboot aktivieren:
HP-Switch-5406Rzl2# show config files

Configuration files:

 id | act pri sec | name
 ---+-------------+------------------------------------------------
  1 |  *   *   *  | default-config-dhcp
  2 |             | config-core-ported
  3 |             | 
  4 |             | 
  5 |             | 


HP-Switch-5406Rzl2# startup-default pri config config-core-ported
This will change the default configuration file used when the switch boots.

Continue (y/n)? y
HP-Switch-5406Rzl2#

Aruba AP-505-RW

  • Default Zugangsdaten (https://ip:4343)
    • Benutzername: admin
    • Passwort: Seriennummer siehe AP unten S/N:
  • Default Web-UI Zertifikat austauschen (Firmware: 8.7.1.2, Hostname: wific2.schule.intern)
  • Zertifikats Bundle besteht aus: cat SERVER-CERT.PEM > /tmp/bundle && cat CA.PEM » /tmp/bundle && cat RSA-KEY-CERT-CRYPTED » /tmp/bundle



LWL - Verkabelung

  • Was kann ich aus diesem Kabel herauslesen ? FIXME
  • Multimode 50/125 / OM2 is der Standard / LC ist der Stecker

  • 10Gbit - sollten möglich sein Telefonat mit HP Support „kann funktionieren kann aber nicht garantiert werden ob stabil und vernünftig erst ab OM4“ - an einem Kundenstandort funktionierts mit 10Gbit und OM2
  • Ist SFP mit SFP+ kompatibel ?
  • Das Format selbst ist grundsätzlich kompatibel aber das spezifische Modul muss auf Kompatibilität überprüft werden
  • Auszug aus dem Manual von einem HPE Switch zur Kompatibilität d.h. in den Manuals der Switches sollten sich die Details zur Kompatibilität befinden

  • SFP Module unterschiedlicher Switchhersteller können kompatibel sein und funktionieren zB: HPE Switches mit D-Link Switches und SFP Modulen mit LWL Verkabelung

Yubikey

  • Achtung Firefox mit firejail / Firefox hat per Default keinen Zugriff aufs Device / Vorher Dongle einstecken dann Firefox starten
Firefox Troubles:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=965097

siehe zB: vim /etc/firejail/firefox-common.profile +43

vim /etc/firejail/firejail.config +22
browser-disable-u2f no
  • Test des Dongles

https://demo.yubico.com/u2f

  • apt-get install yubico-piv-tool ykcs11
  • Firefox Security Provider:

https://developers.yubico.com/yubico-piv-tool/YKCS11/Supported_applications/firefox.html

Virtualisierung

CMD Allerlei

  • Convert RAW Disk to VHD mit Virtualbox:
VBoxManage.exe convertdd disk.raw disk.vhd --format VHD
  • VHDX File mounten und lesen:
    apt-get install libguestfs-tools

    guestmount --add BACKUP.vhdx --inspector --ro /mnt

Antiviren-Dashboards

Nanoheal

 Anonymous

Sollte die Deinstallation über die Nanohealconsole nicht funktionieren, kann der Uninstaller über die Kommandozeile aufgerufen werden:

"C:\Program Files\Nanoheal\Client\cutil.exe" -5
10 months ago
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know-how/etc.txt · Zuletzt geändert: 2021/05/06 09:36 von cc

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