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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] iscsi vs nfs for xen VMs
On Thu, Jan 27, 2011 at 10:38 AM, Adi Kriegisch <adi@xxxxxxxxxxxxxxx> wrote: > Hi! > >> Il 26/01/2011 17:07, yue ha scritto: >> > yes, there has no a good silution. >> > 1.san+gfs2(ocfs2) >> > 2.san+clvm >> > 3san+clvm+gfs2(ocfs2) >> > 4san+normal filesystem, ext3..... >> > which has the better performance? >> >> 4 if your SAN exports as many luns as your VM disks >> >> 2 is better IMHO ...more flexible, not so high overhead > 100% ACK. The best thing about this: There is no overhead in using CLVM: > The cluster locking is only required when modifying LVs. For the rest of > the time performance is (most probably) slightly better than when using > LUNs directly because LVM will take care of readahead dynamically. > > -- Adi > > _______________________________________________ How would you do this? Export LUN1 from SAN1 & LUN1 from SAN2 to the same client PC, and then setup cLVM on top of the 2 LUN's? What do you then do if you want redundancy, between 2 client PC's, i.e similar to RAID1 ? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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