[Users] Fault tolerant storage

[Jakub Bittner]

Dne 1.5.2013 17:25, Sven Knohsalla napsal(a):
> Hi Jakub,
>
> I assume the solution you are searching for is something GlusterFS can serve for example:
> http://www.gluster.org/about/
>
> Best, Sven.
>
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] Im Auftrag von Jonathan Horne
> Gesendet: Mittwoch, 1. Mai 2013 17:16
> An: Jakub Bittner; users at ovirt.org
> Betreff: Re: [Users] Fault tolerant storage
>
> I would be surprised if you could do that without your users noticing.
>
> It seems like you would be better served to have each storage domain on a RAID array and rely on the hardware tools of the RAID to handle disk failure tolerance.
>
> Cheers,
> jonathan
>
> -----Original Message-----
> From: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] On Behalf Of Jakub Bittner
> Sent: Tuesday, April 30, 2013 9:19 AM
> To: users at ovirt.org
> Subject: [Users] Fault tolerant storage
>
> Hi,
>
> would it be possible in near future to use for example 2 attached DATA storage (iSCSi, or so) as fault tolerant storage?
>
> I mean I have two data storage connected to data center and they include exactly same data and my VMs runs from one and all changes are mirrored to second like RAID 1 and if one storage fails everything switch to second storage without user notice?
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Hi,

thank you for replies.
Sven:
I know Gluster. I am using it since 2009 in production but the problem 
is that many organisations and users already have Storage arrays 
(SAN,NAS,..) and migrating to Gluster is not possible or reliable.

While I have 2 storage arrays I would like to use them like network raid 
1.  Also the combination of more storage types would be super cool (NFS 
+ ISCSI) or so.

Jonathan:
Yes, I can rely on disk arrays for hdd fault tolerance, but there are 
more points of failure than disks (network, ram, cpu, water in rack and 
so).

To be clear, I know, I can manage fault tolerance by hardware, but it is 
more expensive