On 29-Nov-07, at 4:09 PM, Paul Kraus wrote: > On 11/29/07, Toby Thain <[EMAIL PROTECTED]> wrote: > >> Xserve + Xserve RAID... ZFS is already in OS X 10.5. >> >> As easy to set up and administer as any OS X system; a problem free >> and FAST network server to Macs or PCs. > > That is a great theory ... we have a number of Xserves with > Xraids. No ZFS on Mac OS X (yet),
10.5. > so we are running HFS+. The problem > is that HFS+ is such a pig that some backups never functional complete > (one server has about 4-5 TB and millions of files, not the large > media files that HFS+ seems to be optimized for). You might also enjoy some of the alternative Xserve configurations described at http://alienraid.org/ I would not expect to see such scaling issues with Linux on Xserve, for example. > About 18 months ago > we had a scheduled server room power outage. We brought everything > down cleanly. On bringing it back up the volume from the Xraid was > corrupt. Apple's only answer (after much analysis) was to reload from > backup. Thankfully this was not the server with the millions of files, > but one that we did have good backups of. We have been terrified every > time we have had to restart the server with the millions of files. > > Not technology that I would want to trust my photos to, at > least until there are better recovery tools out there. But then again, > I have a similar issue with ZFS. So far there haven't been enough odd > failures to cause real recovery tools to be written. Recovery != backup. > Eventually there > will be tools to reconstruct as much of the metadata as possible after > a disaster (there always are for true Enterprise systems), but not > yet. Sounds like you have answered all your questions about ZFS already. --Toby > > -- > Paul Kraus > Albacon 2008 Facilities > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
