[DRBD-user] Using DRBD as the Only RAID

Robinson, Eric eric.robinson at psmnv.com
Wed Jul 23 23:42:21 CEST 2014

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

> Sounds like you want to run Raid1 (drbd) over Raid0 (ssd+md?). This is more fragile than Raid0
> over Raid1, so you might consider implementing Raid0 using DM over multiple drbd devices,
> each mirroring a single ssd.


Our plan is to implement Raid0 using Intel hardware RAID controllers on each server, then Logical Raid1 would be provided by DRBD between the servers. My thought was that if anything happens to a RAID volume, DRBD would simply detach and start using the volume from the other server.  No?


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