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?