On Thursday January 10, [EMAIL PROTECTED] wrote:
Hello,
I am starting to dig into the Block subsystem to try and uncover the
reason for some data I lost recently. My situation is that I have
multiple block drivers on top of each other and am wondering how the
effectss of a raid 5 rebuild would affect the block devices above it.
It should just work - no surprises. raid5 is just a block device
like any other. When doing a rebuild it might be a bit slower, but
that is all.
The layers are raid 5 - lvm - cryptoloop. It seems that after the
raid 5 device was rebuilt by adding in a new disk, that the cryptoloop
doesn't have a valid ext3 partition on it.
There was a difference of opinion between raid5 and dm-crypt which
could cause some corruption.
What kernel version are you using, and are you using dm-crypt or loop
(e..g losetup) with encryption?
As a raid device re-builds is there ant rearranging of sectors or
corresponding blocks that would effect another block device on top of it?
No.
NeilBrown
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