[Bug 990913] Re: RAID goes into degrade mode on every boot 12.04 LTS server

[Thomas Maerz]

I was experiencing this issue on 12.04. I rebuilt the system with 12.10
when that came out. The issue persisted throughout all updates during
the period between release of 12.10 and 13.04. I did a dist-upgrade to
13.04 and the issue still persists.

AMD64 plaform, server dist. I am using the onboard 890GX SATA Controller
for some of the MDADM drives and some of them are on a SuperMicro SAS2LP
card.

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https://bugs.launchpad.net/bugs/990913

Title:
  RAID goes into degrade mode on every boot 12.04 LTS server

Status in “mdadm” package in Ubuntu:
  Confirmed

Bug description:
  I have 2 new Dell PowerEdge R515.
  Box have 2 internal SAS drives and 12 hot swap
  I create a 12 driver raid 6 array on the 12 hot swap drives
  without problem but on every reboot I get a message about 
  either degraded or not enough drives for the raid 6.

  If I shutdown and pull all 12 drives and let boot. Then plug them in.
  The array comes up fine most everytime.

  This happens on both of these new R512

  Also loaded 12.04 LTS server on a R710 and
  the mpt2sas load and times out. I had to
  add rootdelay=180 to boot parms.

  Description:    Ubuntu 12.04 LTS
  Release:        12.04

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