[DRBD-user] 4TB limit

Ralf Gross Ralf-Lists at ralfgross.de
Thu Oct 19 15:30:34 CEST 2006

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

Milind Dumbare schrieb:
> On Thu, 2006-10-19 at 09:42 +0200, Ralf Gross wrote:
> > Hi,
> > 
> > if I understand the documentation correct, there is a limit of ~4TB
> > for a single drbd device on 32bit systems. Furthermore lvm on top of a
> > drbd device is not recommended.
> > 
> > What is the recommended way to use drbd and lvm for filesystems that
> > are >4TB. My aim would be to have only one mount point, hence lvm on
> > top of drbd would be desired.
> Have you used EVMS? I heard its similar to LVM and works well with DRBD.

I played with the evmsgui for some time this morning. But I'm a bit
confused about the terms evms uses.


I wasn't able to achive the same result I got with lvm2 in the end.

BTW: I had to add drbd to the block device include option in the
evms.conf file.

include = [ drbd? hd? sd? dasd? disc ]

evms looks promising (automatic expansion of filesystems if the
underlying device grows). I'll have a look at it next week.


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