hi "raiders"...
i recently changed my raid5 box that was running on debian-2.2
into a new atx case.... new linux-2.2.16...etc.e.tc...
-
- its in a 1U raid5 box... worlds first ??
-
seems like mkraid does various different things ???
some mkraid works and other versions dont...
takamura-san, try a different mkraid... ??
mkraid that came with your linux distro
- mkraid from raidtools-0.90
- mkraid from raidtools-0.41..
-----------
my raid5 problem could be a flaky sdc drive.... since it keeps disappearing
randomly ....and forces a degraded mode... ( have no spare drives either )
am doing a tests for...
dd if=/Raid5/1_GB_file.txt of=/Raid5/test/1.x
dd if=/Raid5/1_GB_file.txt of=/Raid5/test/2.x
diff /Raid5/test/1.x /Raid5/test/2.x
- if it crashes...at least i can just rebuild the 1U raid5 box
have fun linux'ing and raiding
alvin
>
> I've been using RAID5 system for nearly six months without problem,
> but recently the machine halted while the rebooting process (displayed
> message attached below). I tried old valid kernels and some succeeded
> to boot, but the md device(/dev/md0) was still invisible. According to
> the dmesg (attached the last of the mail), the kernel looks trying to
> recognize md device.
>
> I tried several old kernels which all had worked fine, but the
> situation didn't change.
>
> There's no /proc/mdstat, and "mkraid --upgrade /dev/md0" failed saying
> > handling MD device /dev/md0
> > analyzing super-block
> > disk 0: /dev/sda1, 48846847kB, raid superblock at 48846720kB
> > array needs no upgrade
> > mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
>
> Is it possible to recover the content of the RAID? (there were about
> 200G of data..) Or do I have to "really force" mkraid?
>
> Any suggestion, information is welcome.
> Other information (System, raidtab, etc) is also attached below.
> Best regards,
> Takamura
>
> Seishi Takamura, Dr.Eng.
> NTT Cyber Space Laboratories
> Y517A 1-1 Hikarino-Oka, Yokosuka, Kanagawa, 239-0847 Japan
> Tel: +81 468 59 2371, Fax: +81 468 59 2829
> E-mail: [EMAIL PROTECTED]
>
