Summary: cant boot up from Raid 1 disk

From: sunhux G <sunhux_at_gmail.com>
Date: Tue Apr 22 2008 - 23:18:02 EDT
Thanks  Hike, Sunmanagers.comverse & Tobias


1) it was suggested perhaps the CDROM alias is missing
    & we should try to boot up from the full path but it's not
    the issue here with our server.  Anyway, the method is:
ok *show-disks*
 . . . . . . .
   /pci@1e,600000/ide@d/cdrom
 . . . . . . .
q) NO SELECTION
Enter Selection, q to quit: *q
*{1} ok *boot **/pci@1e,600000/ide@d/cdrom@0,0:f*

2) Tried poweroff, wait a while & poweron/boot up from CDrom
    & still no joy

3) login as admin at ILOM & at Service Processor prompt,
    tried the following :
    -> showfaults -v
        ...(& note down UUID of the disabled memory channels)...
    -> enablecomponents  <UUID>    (repeat for each channel)
    -> showfaults -v      (this time all enabled)
    -> start /SP/console
    ok  boot cdrom -s

    The server boots up but intermittently still 'hangs' & crashes
     to OBP (ok) but this time the memory channels are not
     disabled anymore (indicated by 'showfaults -v').  Called Sun
     & motherboard plus 2x1Gb DIMMS replaced.  So far stable
     but we're running Sunvts diagnostics continuously for 2 days


Tks
U



On 4/19/08, Tobias Nutt <tobias.nutt@gmx.de> wrote:
>
> sunhux G wrote:
>
> Tried the following :
>
> As "boot" will attempt to boot  from  disk0,
> we tried   "boot disk1"   at  ok prompt & it failed
> to boot too.
>
> Then at  ok   prompt, did "reset-all" & tried boot
> from the disks (with both disks inserted) again
> without any success.
>
> Then did  "boot cdrom -s"  &  "raidctl -l c0t0d0"
> showed "Sync"  status.  Then out of the blue,
> the system crashed to a  0:0:0>  prompt with
> some messages (the last message was
> "Init MMU").
>
> After that we can't boot up from CDROM anymore.
>
> -> show /SYS/faultmgmt
> showed all four memory channels were disabled
> & probably this is the reason it can't boot from
> CD anymore.
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Received on Tue Apr 22 23:18:42 2008

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