From: md@Linux.IT (Marco d'Itri)
To: linux-hotplug@vger.kernel.org
Subject: vol_id and RAID1 members
Date: Tue, 24 Jan 2006 22:30:36 +0000 [thread overview]
Message-ID: <20060124223036.GA16374@wonderland.linux.it> (raw)
Today one of the disks in a mirrored RAID array failed, and I noticed
that the /dev/disk/by-label/ link had changed from md2 to hda6, the
failed device.
By looking at /dev/.udev/db/ I determined that vol_id returned
ID_FS_LABEL_SAFE=home for both md2 and hda6, because hda6 is not part of
the RAID array anymore and obviously both devices have identical file
system superblocks.
Having the by-label link change after a reboot is a big problem which
could easily cause data loss, but I am not sure about how to fix it.
Should vol_id be modified to look for the RAID superblock and if one is
present ignore the file system superblock?
--
ciao,
Marco
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next reply other threads:[~2006-01-24 22:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-24 22:30 Marco d'Itri [this message]
2006-01-24 23:55 ` vol_id and RAID1 members Kay Sievers
2006-01-27 13:06 ` Marco d'Itri
2006-01-27 16:02 ` Kay Sievers
2006-01-27 16:35 ` Marco d'Itri
2006-01-27 16:48 ` Kay Sievers
2006-01-27 16:56 ` Marco d'Itri
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