[DRBD-user] Any recommendations or cautions on using RAID under DRBD?

Andreas Rittershofer andreas at rittershofer.de
Tue Mar 4 15:37:14 CET 2008

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

Am 04.03.2008 um 14:14 schrieb Doug Knight:

> I am putting together a purchase order for our production systems,  
> and am considering various RAID configurations. DRBD will be used  
> between the two systems to mirror the logical device on which our  
> postgres database will be located. Performance is a first priority,  
> followed by disk space,

We are using DRBD on two pairs of machines. In one pair of machines,  
each machine has a RAID 10 with 4 drives each, in the other pair of  
machines each machine has a RAID 5 with 4 drives each. Both pairs are  
working for years without DRBD-problems.

We had to change a few hard discs in the last years, but it is very  
nice to know that even if more discs are failing that the RAID can  
handle, we are safe because of the other machine in the DRBD-pair.

mfg ar
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