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drbd-user: [DRBD-user] Multiple drbd devices

[DRBD-user] Multiple drbd devices

From: Guy <wyldfury_at_nospam>
Date: Thu Mar 11 2010 - 10:07:14 GMT
To: drbd-user@lists.linbit.com

Hi,

I'm going to be installing some new storage servers fairly soon using
DRBD. I currently have 2 servers with this sort of config:
r0 Primary/Secondary
r1 Secondary/Primary

I'm considering changing to something like this:
r0 Primary/Secondary
r1 Primary/Secondary
r2 Primary/Secondary
r3 Secondary/Primary
r4 Secondary/Primary
r5 Secondary/Primary

on top of a 4x2TB RAID 10.

This is in the interests of splitting users (mailboxes) into smaller
partitions. Should a full sync ever be necessary then there's only be
130G to sync rather than 950GB like I have now.

Are there any gotchas or good reasons that having multiple partitions
like that are a bad idea? The original configuration I had has worked
fine for ages apart from the servers not coping well with a full
resync while still being under load.

Thanks
Guy

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