[DRBD-user] DRBD RAID question

Ben Beuchler insyte at gmail.com
Tue Mar 2 00:04:57 CET 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

> The servers have a RAID0 array which is mirrored by drbd.
> My question is what happens if one HDD from the RAID0 array on one
> server fails and the RAID array is broken? Will DRBD mirror the broken
> stuff to the other server too messing up the data?

As I understand it, DRBD only knows about modifications to the
resource as they move down the stack( DRBD -> RAID -> DISK ).  Since a
broken RAID array happens at a lower level than the DRBD resource,
it's not going to start pushing those changes across.  It should,
however, receive an IO error and respond to that based on your config


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