On Sep 18, 2009, at 9:22 AM, Jürgen Scholz wrote:
Hello!
I'm not so concerned with raid1+0 vs raid0+1 but the use of
striping on the same volume between two active nodes. Any pros/
cons for md or lvm striping? Or more specifically, are they
considered safe in this setup or will corruption slowly come about?
You shouldn't use two drbd-devices for one filesystem. If one
resource disconnects and the other doesn't your data will be
inconsistent. This setup is way to risky.
Build your RAID on a per host base, so that you export one block-
device per filesystem or LVM-group. This way you won't have to face
more data integrity issues than necessary.
Indeed, unless you're using something like GFS. I stripped out any
filesystems to simplify the example. All testing has been done with a
clustered filesystem.
--
Matth
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