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Legacy Forums => Experienced User Forum => Topic started by: Derek on October 27, 2003, 09:03:48 PM

Title: RAID1 Question
Post by: Derek on October 27, 2003, 09:03:48 PM

Hello,

Can someone confirm for me that this is expected behaviour? (A google search seems to indicate that it is).

SME 6.0 B3 with updates, software RAID1:

During boot I get this...

md: RAID level 1 does not need chunksize! Continuing anyway.
kmod: failed to exec /sbin/modprobe -s -k md-personality-3, errno = 2
md: personality 3 is not loaded!

 ...which doesn't look so good.

A little later after the root filesystem is mounted I get this...

md: RAID level 1 does not need chunksize! Continuing anyway.
md0: max total readahead window set to 124k
md0: 1 data-disks, max readahead per data-disk: 124k
raid1: device hda1 operational as mirror 0
raid1: device hdc1 operational as mirror 1
raid1: raid set md0 active with 2 out of 2 mirrors

...which looks good.

lsmod |grep raid1 produces this...

raid1                  15684   3

...which also looks good.

Is the original module loading error expected?

Thanks.

Derek

Title: Re: RAID1 Question
Post by: Pieter on October 28, 2003, 02:07:58 AM

I find the same messages in the logs, running 5.6. Can't verify for 6.0 yet.

try: #cat /proc/mdstat, you should get something like:

Personalities : [raid1]
read_ahead 1024 sectors
md1 : active raid1 hda6[0] hdd6[1]
      14723456 blocks [2/2] [UU]

md0 : active raid1 hda5[0] hdd5[1]
      15936 blocks [2/2] [UU]

md2 : active raid1 hda1[0] hdd1[1]
      264960 blocks [2/2] [UU]

unused devices:

U means disk is up,  everything is find if you get UU for any raiddevice.

Pieter

Title: Re: RAID1 Question
Post by: Derek on October 28, 2003, 07:51:39 AM

I do get those results, so I guess all is well.

Thanks.