[DRBD-user] Significant performance improvement!

Christopher Grello cgrello at gmail.com
Tue Jun 24 17:31:49 CEST 2008


I've deployed DRBD on HP DL360's and DL380's. I've used internal meta w/o
any noticeable loss of performance. The typical setup is usually (4) 72GB
15K SFF SAS drives in a RAID-10 or RAID-5 for DRBD. Array -> LVM -> DRBD ->
file system. In all cases, there is at least 256MB of cache on the
controller and the BBWC is installed and write-cache enabled. Drive-level
cache is disabled of course. Sequential write throughput is better than
150MBps native so the bottleneck becomes the 1Gbps xover link between the
boxes -- which is fine for these environments.

- Chris
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