[CentOS] DRBD very slow....
Roman Savelyev
centosmail at savelyev.netMon Jul 27 06:18:37 UTC 2009
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> Invest in a HW RAID card with NVRAM cache that will negate the need > for barrier writes from the OS as the controller will issue them async > from cache allowing I/O to continue flowing. This really is the safest > method. It's a better way. But socket oprions in DRBD up to 8.2 (Nagel alghoritm) can decrease performance in large amount of small syncronius writes.
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