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xen-users
Re: [Xen-users] Shared Storage
Hands down mamanging LVM is my number one choice. Ideally I would just
like to set up the iSCSI connections once and just leave it
Yeah. iSCSI a few LUNs from your SAN, cLVM across your nodes (do the
iSCSI in dom0), create your LV's and you're done.
This is really only half the picture though and touches on another level
of storage concepts. What does your backend disk and cache look like?
In my clusters, I create two storage pools, one for "fast disk" and the
other for "slow disk," then add LUNs from the SAN appropriately. You
should get as granular as you can in performance and use-case terms
though to keep the right IOs on the right disks but that may not be
practical with your SAN (e.g., if you just have 64 spindles in a single
RAID-10 or some dumb JBOD or something).
I guess the message is to think about how you're laying out your data
and then align that with how you lay out your disks. You may squeeze
out an extra 5% by going with multiple LUNs versus a single LUN and
another 30% by going with FC instead of multi-GbE, but you can gain even
more by utilizing the limited i/o of a spindle more effectively.
John
--
John Madden
Sr UNIX Systems Engineer / Office of Technology
Ivy Tech Community College of Indiana
jmadden@xxxxxxxxxxx
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- RE: [Xen-users] Shared Storage, (continued)
- RE: [Xen-users] Shared Storage, Jonathan Tripathy
- Re: [Xen-users] Shared Storage, Jonathan Dye
- Re: [Xen-users] Shared Storage, Bart Coninckx
- Re: [Xen-users] Shared Storage, Jonathan Dye
- RE: [Xen-users] Shared Storage, Jonathan Tripathy
- Re: [Xen-users] Shared Storage, Bart Coninckx
- Re: [Xen-users] Shared Storage, John Madden
- Re: [Xen-users] Shared Storage, Jonathan Tripathy
- Re: [Xen-users] Shared Storage, John Madden
- Re: [Xen-users] Shared Storage, Jonathan Tripathy
- Re: [Xen-users] Shared Storage,
John Madden <=
- Re: [Xen-users] Shared Storage, Jonathan Tripathy
- Re: [Xen-users] Shared Storage, Eduardo Bragatto
- Re: [Xen-users] Shared Storage, John Madden
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- [Xen-users] Shared Storage, Joseph Glanville
- RE: [Xen-users] Shared Storage, admin
- Re: [Xen-users] Shared Storage, Joseph Glanville
- RE: [Xen-users] Shared Storage, admin
- Re: [Xen-users] Shared Storage, Steven Timm
- Re: [Xen-users] Shared Storage, Joseph Glanville
- Re: [Xen-users] Shared Storage, Steven Timm
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