The ungleich hardware maintenance guide » History » Revision 9
Revision 8 (Nico Schottelius, 09/05/2021 09:47 AM) → Revision 9/23 (Nico Schottelius, 09/05/2021 09:57 AM)
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h1. The ungleich hardware maintenance guide
This guide describes common operations on hardware we use.
h2. APU Bios Update
* Download the correct bios from https://pcengines.github.io/
** Check whether it's apu1/2/3/4 before downloading
* Install flashrom
* "Flash bios using flashrom":https://github.com/pcengines/apu2-documentation/blob/master/docs/firmware_flashing.md
** @flashrom -w THEROMFILE -p internal@
h2. APU Serial and bootloader configuration
* Ensure that the bootloader has "console=ttyS0,115200" configured
* Ensure that there is a getty running on serial
* Use grub-bios as the bootloader
** Install using @grub-install /dev/sda@
h2. Updating the Perc H800 SAS controller
* @wget 'https://dl.dell.com/FOLDER03292738M/3/SAS-RAID_Firmware_XKF5X_LN_12.10.7-0001_A13.BIN?uid=4b8a2506-f4d4-46a9-ab19-3c2a5008a782&fn=SAS-RAID_Firmware_XKF5X_LN_12.10.7-0001_A13.BIN' -O SAS-RAID_Firmware_XKF5X_LN_12.10.7-0001_A13.BIN@
* chmod u+x SAS-RAID_Firmware_XKF5X_LN_12.10.7-0001_A13.BIN
* ./SAS-RAID_Firmware_XKF5X_LN_12.10.7-0001_A13.BIN
h2. HP servers disk management
* See also http://www.datadisk.co.uk/html_docs/redhat/hpacucli.htm
Show all drives/controller overview:
<pre>
hpacucli ctrl slot=0 pd all show
</pre>
h2. Dell servers disk management
Adding disks:
<pre>
megacli -CfgLdAdd -r0 [Enclosure Device ID:slot] -aX (X : host is 0. md-array is 1)
# Sample call, if enclosure and slot are KNOWN (aka not N/A)
megacli -CfgLdAdd -r0 [32:0] -a0
# Sample call, if enclosure is N/A
megacli -CfgLdAdd -r0 [:0] -a0
</pre>
Remove cache of disks that are not in the server anymore:
<pre>
megacli -DiscardPreservedCache -Lall -aAll
</pre>
Remove foreign configurations on foreign disks
<pre>
megacli -CfgForeign -Clear -aAll
</pre>
Do both in many cases:
<pre>
megacli -DiscardPreservedCache -Lall -aAll
megacli -CfgForeign -Clear -aAll
</pre>
h2. SEE ALSO
* [[Managing OpenWRT]]
* [[The_ungleich_ceph_handbook]]