Re: [Xen-users] Shared Storage

[John Madden <jmadden@xxxxxxxxxxx>]

On 04/24/2011 04:24 PM, Jonathan Tripathy wrote:
> Well, I'm very familiar with LVM and shrinking and extending LVs and
> filesystems. Been doing this for ages.
>
> I would like to use openfiler, however I'd like to script this, so maybe
> Linux is still the best option?
>
> And just to confirm, Linux iSCSI will be ok with hundreds of LUNs?
> Assume network and spindle hardware is ok.
If you can serve the LUNs to the box, you'll be fine.  But keep in mind 
the 256-per-target/channel limit inherent to SCSI.  And why you'd want 
to manage hundreds of disks instead of hundreds of LV's is beyond me -- 
management at the LVM layer is a lot easier than duplicating the work of 
disk labeling, multipathing, etc.
Oh, and with hundreds of VMs, the spindle will always be your bottleneck.

John




--
John Madden
Sr UNIX Systems Engineer / Office of Technology
Ivy Tech Community College of Indiana
jmadden@xxxxxxxxxxx

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