Hi Tommy, thanks for your post.
I set the system up as follows: Root ZFS pool "rpool" for osol root installation (RAID 1 hardware mirror) ZFS pool "zpool" for my DomU's (c7t2d0, c7t3d0 -> local SAS disks) On basis of zpool I created a zvol with 50gb and installed the DomU on basis of this zvol. I did this two times: first with ZFS and second with UFS. First installation was pretty slow, second was quite fast. Here is another mail from the mailing list: "Be sure to have single vdevs in your DomU. Any old filesystem would normally fit this description. ZFS is special: it does it's own striping/mirroring, and makes the usual assumptions about your leaf vdevs in order to optimize performance. My recommendation follow from my 'common sense' feeling [2] that ZFS dynamic striping (default operation, but also key in raidz/raidz2/raidz3) will make assumptions about your underlying devices, that just won't hold for virtual disks, especially on LVM/RAID sets or ZFS (ZFS being similar to LVM/RAID in this department)." So "doubling" the effect of ZFS (in Dum0 and DomU) leads to a misbehaviour in regards of performance instead of boosting the performance?! Is this correct? Regards André -- This message posted from opensolaris.org _______________________________________________ xen-discuss mailing list [email protected]
