> We are running Solaris 10 11/06 on a Sun V240 with 2 > CPUS and 8 GB of memory. This V240 is attached to a > 3510 FC that has 12 x 300 GB disks. The 3510 is > configured as HW RAID 5 with 10 disks and 2 spares > and it's exported to the V240 as a single LUN. > > We create iso images of our product in the following > way (high-level): > > # mkfile 3g /isoimages/myiso > # lofiadm -a /isoimages/myiso > /dev/lofi/1 > # newfs /dev/rlofi/1 > # mount /dev/lofi/1 /mnt > # cd /mnt; zcat /product/myproduct.tar.Z | tar xf - > > and we finally use mkisofs to create the iso image. >
> > ZFS performance > --------------------- > When we create a ZFS file system on the above LUN and > create the iso it takes forever it seems to be > hanging in the tar extraction (we killed this after a > while i.e. > few hours). That's probably bug 6382683 "lofi is confused about sync/async I/O", and AFAIK it's fixed in current opensolaris releases. See the thread with subject "bad lofi performance with zfs file backend / bad mmap write performance" from january / february 2006: http://mail.opensolaris.org/pipermail/zfs-discuss/2006-January/016450.html http://mail.opensolaris.org/pipermail/zfs-discuss/2006-February/016566.html Possible workaround: Create a 3gb zvol device, and use that instead of a 3gb file + lofi. Or use something like this: zfs create tank/myiso cd /tank/myiso cat /product/myproduct.tar.Z | tar xf - mkisofs ... This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
