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castor_fou
Apprentice
Joined: 23 May 2002
Posts: 249
Location: Clermont-Ferrand, France
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 Posted: Sun Apr 01, 2012 8:53 pm Post subject: mdraid failed to stop |
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Recently I have noticed some error in the shutdown process.
From rc.log
| Code: | * Shutting down the Logical Volume Manager
* Finished Shutting down the Logical Volume Manager
* Shutting down RAID devices (mdadm) ...
* mdadm: stopped /dev/md0
mdadm: Cannot get exclusive access to /dev/md2:Perhaps a running process, mounted filesystem or active volume group?
mdadm: Cannot get exclusive access to /dev/md1:Perhaps a running process, mounted filesystem or active volume group?
mdadm: Cannot get exclusive access to /dev/md2:Perhaps a running process, mounted filesystem or active volume group?
mdadm: Cannot get exclusive access to /dev/md1:Perhaps a running process, mounted filesystem or active volume group?
mdadm: Cannot get exclusive access to /dev/md2:Perhaps a running process, mounted filesystem or active volume group?
mdadm: Cannot get exclusive access to /dev/md1:Perhaps a running process, mounted filesystem or active volume group?
[ !! ]
* ERROR: mdraid failed to stop |
looks like lvm is not really shutdown then raid cannot shutdown either.
Do you have any clue about how to investigate ? |
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Veldrin
Veteran
Joined: 27 Jul 2004
Posts: 1945
Location: Zurich, Switzerland
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| Posted: Sun Apr 01, 2012 10:38 pm Post subject: |
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I assume, that you are running lvm on top of mdadm raid.
and it is prefectly normal, that it cannot shutdown all raid and lvm devices at shutdown, as the / need to be up and run at that point (although only read only), and there also the raid partition, the vg and lv it resides in.
What confuses me, is that there are 2 md devices complaining.
can you give some more information about you disk layout. fstab will shed some light on it.
V.
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castor_fou
Apprentice
Joined: 23 May 2002
Posts: 249
Location: Clermont-Ferrand, France
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| Posted: Mon Apr 02, 2012 8:10 am Post subject: |
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You are perfectly right, lvm on top of mdadm raid.
I used to have some complaints about md1 which cannot be unmounted at shutdown.
I have swap on md0. (no lvm)
I have /, /usr/, /home, /var on md1. (lvm)
And /data on md2. (lvm)
But recently the issue became larger.
It looks like LVM is not really shutting down, and then mdadm is complaining. At least it should be able to shutdown md2.
I will post my fstab later. |
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castor_fou
Apprentice
Joined: 23 May 2002
Posts: 249
Location: Clermont-Ferrand, France
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| Posted: Mon Apr 02, 2012 9:24 pm Post subject: |
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here is my fstab
| Code: | # <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/md0 /boot ext3 defaults,noatime 1 2
/dev/mapper/VG_gentoo_root-root / ext3 noatime 0 1
/dev/mapper/VG_gentoo_root-usr /usr ext3 noatime 0 1
/dev/mapper/VG_gentoo_root-var /var ext3 noatime 0 1
/dev/mapper/VG_gentoo_root-tmp /tmp ext3 noatime 0 1
/dev/mapper/VG_gentoo_data-home /home ext3 noatime 0 1
/dev/mapper/VG_gentoo_data-data /data ext3 noatime 0 1
UUID=a6f2ae5e-1a72-420d-80f3-f302acb262f8 none swap sw 0 0
UUID=5b6d9d1a-8eed-406d-af65-bb0be1da5d61 none swap sw 0 0
/dev/cdrom /mnt/cdrom udf,iso9660 user,noauto,exec,utf8 0 0
UUID=8773c729-ecdc-47fd-ba4e-af7d530e6c0f /data-backup ext3 noatime 0 1
nas:/volume1/music /nas/music nfs defaults,user,exec,nolock 0 1
nas:/volume1/photo /nas/photo nfs defaults,user,exec,nolock 0 1
nas:/volume1/video /nas/video nfs defaults,user,exec,nolock 0 1
nas:/volume1/homes/guillaume /home/gui/Nas nfs defaults,user,exec,nolock 0 1
nas:/volume1/BDs /home/gui/Nas/BDs nfs defaults,user,exec,nolock 0 1
nas:/volume1/homes/guillaume /home/test/Nas nfs defaults,user,exec,nolock 0 0
#UUID=412e2995-0b52-42ac-987d-a37b631ae5f8 /mnt/kubuntu ext4 noatime 0 1
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
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VG_gentoo_root is on md1
VG_gentoo_data is on md2 |
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