Hi,
I'm not really a filesystem guy so this may be a really dumb question.
We currently have an issue where we have a ~1TB RAID1 array that is
mostly given over to LVM. If we swap one of the disks it will rebuild
everything, even though we may only be using a small fraction of the space.
This got me thinking. Has anyone given thought to using the TRIM
information from filesystems to allow the RAID code to maintain a
bitmask of used disk blocks and only sync the ones that are actually used?
Presumably this bitmask would itself need to be stored on the disk.
Thanks,
Chris
--
Chris Friesen
Software Designer
3500 Carling Avenue
Ottawa, Ontario K2H 8E9
www.genband.com
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