[linux-lvm] snapshots and 2.6 kernel

darren.miller at philips.com darren.miller at philips.com
Thu Mar 25 14:07:05 UTC 2004


Getting the volume active is a pain I found that you have to reboot the 
system and when it comes back you need to create a link your volume group 
directory for the snapshot you create, atleast after the reboot the 
snapshot device showup in /dev/mapper which is a start right.

link it into your VG device home directory and then you can remove the 
snapshot, once you got the snapshot out of the way you can run lvchange -a 
y <lvname> to bring your original LV back online.

Hope this makes sense.

Daz
==============================================================================
Darren Miller 
Senior Systems Support Engineer
Microsoft Certified Professional
SCO Advanced Certified Engineer 
Infomation Systems Department (Core Server Support)
Philips Semiconductors,Milbrook Industrial Estate,Southampton,SO15 
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Direct Dial In: +44 (0) 2380 312681









Rich Turner <rich at storix.com>
Sent by: 
linux-lvm-bounces at redhat.com
23/03/2004 23:33
Please respond to LVM general discussion and development

 
        To:     LVM general discussion and development <linux-lvm at redhat.com>
        cc:     (bcc: Darren Miller/SOU/SC/PHILIPS)
        Subject:        [linux-lvm] snapshots and 2.6 kernel
        Classification: 



i understand from numerous posts on this list and many others that
snapshots in the 2.6 kernel is not yet supported.

the lvm commands allow you to create the snapshot but do nothing with
it. even worse, i am unable to remove the snapshot or get the original
logical volume active.

is there any progress in the 2.6 kernel supporting snapshots?

is there any way to know if the snapshot will be valid before creating
the snapshot (other than 'uname -r')?

which is the culprit: device-mapper, lvm?

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