[DRBD-user] DRBD Dual Primary + GFS2 for redundant KVM hosts

Gionatan Danti g.danti at assyoma.it
Sat Aug 26 19:23:14 CEST 2017

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


Il 26-08-2017 14:28 Yannis Milios ha scritto:
> Ah I see, sorry I wasn't aware of that. Is there a particular reason
> in using file based VMs ?

Simply for easy of management :)

> since generally speaking the performance on
> raw devices is much better and in DRBD9 you can leverage of thin lvm
> or zfs based snapshots.

I use lvm-based block device on critical installation, actually. 
However, backing up block devices is an hassle compared to regular 
files: you basically need to use ddrescue or, even worse, plain dd. 
Especially with the latter, you need to be *extremely* careful, as its 
"alias name" (data-destroyer) is here for a reason.

Thanks.

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti at assyoma.it - info at assyoma.it
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