Re: Identify disks for setup-storage

[Thomas Roth]

Thank you all - I have managed to get a hold on my disks, much in the described 
way.
Cheers
Thomas

On 09/01/2023 22.22, andrew bezella wrote:

On Sun, 2023-01-08 at 11:26 +0100, Thomas Lange wrote:

Hi Thomas,

I use a script to reorder the variable $disklist, so setup-storage
can
mostly use disk1, but I can define the order of the disk depending on
disk types or even the serial number of a disk. The script is
class/99-disklist.sh:


we use a similar strategy inspired by a 2013 discussion[1].  with
batches of homogeneously-built hosts we can use the information in
`/dev/disk/by-path` to walk through a known disk layout in our
preferred order (see attached).

hth,

andy

1. https://lists.uni-koeln.de/pipermail/linux-fai/2013-November/010229.html



--

Thomas Roth
Department: Informationstechnologie
Location: SB3 2.291



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Re: Identify disks for setup-storage

[andrew bezella]

On Sun, 2023-01-08 at 11:26 +0100, Thomas Lange wrote:
> Hi Thomas,
> 
> I use a script to reorder the variable $disklist, so setup-storage
> can
> mostly use disk1, but I can define the order of the disk depending on
> disk types or even the serial number of a disk. The script is
> class/99-disklist.sh:

we use a similar strategy inspired by a 2013 discussion[1].  with
batches of homogeneously-built hosts we can use the information in
`/dev/disk/by-path` to walk through a known disk layout in our
preferred order (see attached).

hth,

andy

1. https://lists.uni-koeln.de/pipermail/linux-fai/2013-November/010229.html

-- 
andrew bezella 
internet archive


99-disklist.sh
Description: application/shellscript

Re: Identify disks for setup-storage

[Thomas Lange]

Hi Thomas,

I use a script to reorder the variable $disklist, so setup-storage can
mostly use disk1, but I can define the order of the disk depending on
disk types or even the serial number of a disk. The script is 
class/99-disklist.sh:


#! /bin/bash

mydisks() {

find $* -type l -printf "%f %l\n" | egrep -v '^md|-part|wwn-' | egrep ^ata 
| sed -e 's#.*/##g'| tr '\n' ' '
}

# This is really important, because we use shell globbing for creating the list 
of disks
cd /dev/disk/by-id || echo Cannot get disk information


case $HOSTNAME in
server1) newlist=$(mydisks *WD3000FYYZ* *0F400HGN* ) ;;
server2) newlist=$(mydisks *WDC_WD320* *ST31000* *SAMSUNG_HD502* ) ;;
www5)newlist=$(mydisks *_SSD_* *TOSHIBA* ) ;;
esac

if [ -n "$newlist" ]; then
echo New disklist: $newlist
echo disklist=\"$newlist\" >> $LOGDIR/additional.var
fi

-- 
viele Grüße Thomas