RAID Detection using intel VROC (VMD)

[Sven Schumacher]

Hello Thomas,

Am 16.09.21 um 11:47 schrieb Thomas Lange:
>
> 5.10.0-8 there is some output telling me on which Ports the hdd and ssd are attached.
> What is the output of cat /proc/partitions during FAI?
> Maybe some special device names are ignored by FAI.
>
Output of cat /proc/partitions while running fai:
major minor  #blocks  name

  259        0  500107608 nvme1n1
  259        1     512000 nvme1n1p1
  259        2     131072 nvme1n1p2
  259        3  371093750 nvme1n1p3
  259        4    1074218 nvme1n1p4
  259        5  500107608 nvme0n1
  259        6     512000 nvme0n1p1
  259        7     131072 nvme0n1p2
  259        8  371093750 nvme0n1p3
  259        9    1074218 nvme0n1p4
    8        0 1953514584 sda
    8        1      16367 sda1
    8        2 1953490944 sda2
    8       16 1953514584 sdb
    8       17      16367 sdb1
    8       18 1953490944 sdb2
    8       32   15155200 sdc
    8       33   15153106 sdc1
    8       34        512 sdc2

Output of mdadm --detail-platform:
        Platform : Intel(R) Virtual RAID on CPU
         Version : 6.2.0.1034
     RAID Levels : raid0 raid1 raid10 raid5
     Chunk Sizes : 4k 8k 16k 32k 64k 128k
     2TB volumes : supported
       2TB disks : supported
       Max Disks : 8
     Max Volumes : 2 per array, 8 per controller
  I/O Controller : /sys/devices/pci0000:00/0000:00:17.0 (SATA)
           Port1 : /dev/sdb (31FZU7ZGS)
           Port0 : /dev/sda (31FZU73GS)
           Port2 : - no device attached -
           Port3 : - no device attached -
           Port4 : - no device attached -
           Port5 : - no device attached -
           Port6 : - no device attached -
           Port7 : - no device attached -

        Platform : Intel(R) Virtual RAID on CPU
         Version : 6.2.0.1034
     RAID Levels : raid0 raid1 raid10
     Chunk Sizes : 4k 8k 16k 32k 64k 128k
     2TB volumes : supported
       2TB disks : supported
       Max Disks : 48
     Max Volumes : 2 per array, 24 per controller
  3rd party NVMe : supported
  I/O Controller : /sys/devices/pci0000:b2/0000:b2:05.5 (VMD)
  NVMe under VMD : /dev/nvme0n1 (CDA4N729010304O53)
  NVMe under VMD : /dev/nvme1n1 (CDA4N729010304O54)

after calling "mdadm -A /dev/md/md0 -e imsm /dev/nvme0n1 /dev/nvme1n1"

and "mdadm --manage /dev/md/md0 --run"

fai sees the raid in /proc/partitions:

major minor  #blocks  name

  259        0  500107608 nvme1n1
  259       18     512000 nvme1n1p1
  259       19     131072 nvme1n1p2
  259       20  371093750 nvme1n1p3
  259       21    1074218 nvme1n1p4
  259        5  500107608 nvme0n1
  259       22     512000 nvme0n1p1
  259       23     131072 nvme0n1p2
  259       24  371093750 nvme0n1p3
  259       25    1074218 nvme0n1p4
    8        0 1953514584 sda
    8        1      16367 sda1
    8        2 1953490944 sda2
    8       16 1953514584 sdb
    8       17      16367 sdb1
    8       18 1953490944 sdb2
    8       32   15155200 sdc
    8       33   15153106 sdc1
    8       34        512 sdc2
    9      126  475087872 md126
  259        1     512000 md126p1
  259        2     131072 md126p2
  259        3  371093750 md126p3
  259        4    1074218 md126p4


Thanks in advance


Sven



-- 
Sven Schumacher                       Tel: (0511)762-2753
Leibniz Universitaet Hannover
Fakultät für Maschinenbau, Head of Systemadministration
An der Universität 1 - 30823 Garbsen

Institut für Turbomaschinen und Fluid-Dynamik       - TFD
Institut für Kraftwerkstechnik und Wärmeübertragung - IKW
Institut für Technische Verbrennung                 - ITV

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