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Re: [Xen-users] Storage Systems for Virtual Disk Images

Thanks for your input, Stephan!

Eric Pretorious

From: Stephan Seitz <s.seitz@xxxxxxxxxxxxxxxxxxxxxxxxxx>
To: Eric <epretorious@xxxxxxxxx>
Cc: Xen-users lists.xen.org <xen-users@xxxxxxxxxxxxx>
Sent: Friday, October 17, 2014 4:26 AM
Subject: Re: [Xen-users] Storage Systems for Virtual Disk Images

I expierenced the SCST as the most performant and feature-complete
target. Sadly enough, it's not in kernel upstream, so you'ld have to add
two patches to your kernel to get the best performance.
The SCST Website has a table where you can compare the targets.

If you don't want to patch your kernel or do need some native
backend-support (for e.g. Ceph), you'ld better try TGT. Just note that
userland operations in TGT are far slower than SCST.

IET looks to me like some kind of reference-implementation. It doesn't
perform well and has no feature which is more important than the
performance impact.

I've never tried LIO, so I don't know much about it.
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