From: "Mikael Chambon" <raid-ml@cronos.org>
To: linux-raid@vger.kernel.org
Subject: RAID md-personality
Date: Thu, 10 Jul 2003 20:46:46 -1000 [thread overview]
Message-ID: <007701c34778$32aea5e0$c9e903ca@magnus> (raw)
Hi All,
I am quite new to RAID (please forgive if my questions are stupid) and
I tried to read almost all papers (HOW-TO) that I was able to find on
tldp.org
but I still have some questions, I will split them in different emails.
I would really appreciate if someone could answer my questions or if someone
could
give me a good link. For this setup I am using a RH 7.3 with a 2.4.20-18.7
kernel.
1) During boot time, when md is trying to autodetect a RAID array before the
root
filesystem is mounted, I get the following error when kmod
is trying to load md-personality (someone know what this module is for ?).
=========
Jul 9 15:28:29 mekare kernel: md: md driver 0.90.0 MAX_MD_DEVS=256,
MD_SB_DISKS=27
Jul 9 15:28:29 mekare kernel: md: Autodetecting RAID arrays.
Jul 9 15:28:29 mekare kernel: [events: 00000004]
Jul 9 15:28:29 mekare kernel: [events: 00000004]
Jul 9 15:28:29 mekare kernel: md: autorun ...
Jul 9 15:28:29 mekare kernel: md: considering hdc1 ...
Jul 9 15:28:29 mekare kernel: md: adding hdc1 ...
Jul 9 15:28:29 mekare kernel: md: adding hda8 ...
Jul 9 15:28:29 mekare kernel: md: created md0
Jul 9 15:28:29 mekare kernel: md: bind<hda8,1>
Jul 9 15:28:29 mekare kernel: md: bind<hdc1,2>
Jul 9 15:28:29 mekare kernel: md: running: <hdc1><hda8>
Jul 9 15:28:29 mekare kernel: md: hdc1's event counter: 00000004
Jul 9 15:28:29 mekare kernel: md: hda8's event counter: 00000004
Jul 9 15:28:29 mekare kernel: md: md0: raid array is not clean -- starting
background reconstruction
Jul 9 15:28:29 mekare kernel: md: RAID level 1 does not need chunksize!
Continuing anyway.
Jul 9 15:28:29 mekare kernel: kmod: failed to exec /sbin/modprobe -s -k
md-personality-3, errno = 2
Jul 9 15:28:29 mekare kernel: md: personality 3 is not loaded!
==========
- I can' find this module anywhere.
- I have tried to include the raid1 module in the RAMDISK using mkinitrd
but I still have the same error.
- When the root filesystem is mounted, I don't have this error anymore as
you
can see:
=========
Jul 9 15:28:29 mekare kernel: VFS: Mounted root (ext2 filesystem).
Jul 9 15:28:29 mekare kernel: md: raid1 personality registered as nr 3
Jul 9 15:28:29 mekare kernel: Journalled Block Device driver loaded
Jul 9 15:28:29 mekare kernel: md: Autodetecting RAID arrays.
Jul 9 15:28:29 mekare kernel: [events: 00000004]
Jul 9 15:28:29 mekare kernel: [events: 00000004]
Jul 9 15:28:29 mekare kernel: md: autorun ...
Jul 9 15:28:29 mekare kernel: md: considering hda8 ...
Jul 9 15:28:29 mekare kernel: md: adding hda8 ...
Jul 9 15:28:29 mekare kernel: md: adding hdc1 ...
Jul 9 15:28:29 mekare kernel: md: created md0
Jul 9 15:28:29 mekare kernel: md: bind<hdc1,1>
Jul 9 15:28:29 mekare kernel: md: bind<hda8,2>
Jul 9 15:28:29 mekare kernel: md: running: <hda8><hdc1>
Jul 9 15:28:29 mekare kernel: md: hda8's event counter: 00000004
Jul 9 15:28:29 mekare kernel: md: hdc1's event counter: 00000004
Jul 9 15:28:29 mekare kernel: md: md0: raid array is not clean -- starting
background reconstruction
Jul 9 15:28:29 mekare kernel: md: RAID level 1 does not need chunksize!
Continuing anyway.
Jul 9 15:28:29 mekare kernel: md0: max total readahead window set to 508k
Jul 9 15:28:29 mekare kernel: md0: 1 data-disks, max readahead per
data-disk: 508k
Jul 9 15:28:29 mekare kernel: raid1: device hda8 operational as mirror 0
===========
If someone could help me a little.
Thanks.
--
Mikael Chambon
next reply other threads:[~2003-07-11 6:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-11 6:46 Mikael Chambon [this message]
2003-07-11 13:31 ` RAID md-personality Paul Clements
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