[DRBD-user] Poor DRBD performance, HELP!

Digimer linux at alteeve.com
Sat Jun 18 19:22:57 CEST 2011

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

On 06/17/2011 11:04 AM, Noah Mehl wrote:
> Here is the drbd status from /proc/drbd:
> version: (api:88/proto:86-94)
> GIT-hash: 0d8589fcc32c874df57c930ca1691399b55ec893 build by gardner@, 2011-05-21 19:18:16
>   0: cs:WFConnection ro:Primary/Unknown ds:UpToDate/DUnknown C r---d
>      ns:0 nr:0 dw:504388120 dr:2124 al:123972 bm:123845 lo:380 pe:0 ua:0 ap:381 ep:1 wo:b oos:13671456264
>   1: cs:WFConnection ro:Secondary/Unknown ds:UpToDate/DUnknown C r----
>      ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:13669326412
> As you can see, I haven't connected the other node, so I'm assuming that the network has nothing to do with the performance at this point.

Is there a difference when your resource is StandAlone/Primary?

Of course, this is an artificial score, as you will be Connected 
normally. What is your network capable of? try copying to/from a ramdisk 
and see what speed you get (both alone and using ramdisk to back a DRBD 

E-Mail:              digimer at alteeve.com
Freenode handle:     digimer
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