[DRBD-user] DRBD on virtual machine

John Lauro john.lauro at covenanteyes.com
Wed Feb 18 18:37:47 CET 2015

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

All I'll say is that some peoples VM guests have far greater I/O capability than other peoples physical machines... 

----- Original Message -----

> From: "James K. Prater" <jprater at draper.com>
> To: "antoniofernandez at fabergroup.es"
> <antoniofernandez at fabergroup.es>, "drbd-user at lists.linbit.com"
> <drbd-user at lists.linbit.com>
> Sent: Wednesday, February 18, 2015 11:49:11 AM
> Subject: Re: [DRBD-user] DRBD on virtual machine

> I continue to see people run DRDB clusters as VM guests. I personally
> don't get this. The only reason to do this is as a proof of concept
> and not for production. I run a DRDB cluster as a source of data
> storage system for a virtualization environment. It is based on
> physical machines for maximum performance. Depending on the I/O
> requirements of the DRBD system and it's applications running
> underneath it could make it very difficult for the virtualization
> hosts to supply the necessary I/O capability to support the required
> load.

> James

> From : Antonio Fernández Pérez
> [mailto:antoniofernandez at fabergroup.es]
> Sent : Tuesday, February 17, 2015 08:55 AM
> To : drbd-user at lists.linbit.com <drbd-user at lists.linbit.com>
> Subject : [DRBD-user] DRBD on virtual machine

> ​​Hi list:

> I need your help ... I have to migrate two physical servers with
> DRBD+Pacemaker+Corosync to virtual machines. On the new set of
> virtual machines I will can manage more hardware resources but, do
> you have any reason advise against using DRBD on virtual machines?

> I hope your answers.

> Thanks in advance.

> Regards,

> Antonio.​
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