[DRBD-user] primary/primary drbd + md + lvm

Jürgen Scholz juergen at kernkraft400.com
Fri Sep 18 18:22:55 CEST 2009

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


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.

cheers,
  juergen



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