kvm
------------------ Original ------------------ From: "Aaron Delp"<aaron.d...@citrix.com>; Date: Wed, Jul 31, 2013 11:40 PM To: "users@cloudstack.apache.org"<users@cloudstack.apache.org>; Subject: Re: iSCSI IO performance is worse than NFS,why? On 7/31/13 8:32 AM, "WXR" <1485739...@qq.com> wrote: >I find that the disk IO performance of vm instances on >iSCSI(sharedmountpoint) primary storage is worse than that on NFS primary >storage. > >When I use a single hdd and create a NFS share as primary storage,the >disk IO performance is pretty good. >But when I use the same hdd and create a iSCSI lun as primary storage,the >disk IO performance is lower than NFS. > >I think the disk IO performance of iSCSI should be better than NFS. > What hypervisor are you using to attach? .
