LVM snapshot
Russell Coker
russell at coker.com.au
Wed Aug 11 16:00:20 UTC 2004
lvcreate -s -n snap -l 10 /dev/V0/fc2
/dev/V0/fc2 is the root file system for my FC2 machine. I ran the above
command to make a snapshot of it named /dev/mapper/snap and now all access to
the root FS is blocking. I had "less" running before this and I can still
scroll. I expect that "-l 10" is enough as my PE size is 16M and I don't
expect to make more than 160M of changes before the backup is complete.
Did I do something wrong or is this an indication of a kernel bug in LVM?
--
http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages
http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/ Postal SMTP/POP benchmark
http://www.coker.com.au/~russell/ My home page
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