Hi. I have tested zfs for a while and is very impressed with the ease one can create filesystems (tanks). I'm about to try it out on a atabeast with 42 ata 400 GB disks for internal use, mailny as a fileserver. If this goes well (as I assume it will) I'll consider to desploy zfs on a larger scale in about a year from now.
First I wanted to stripe two or four disks on the atabeast and do a raidz2 volume in zfs. The consensus (reading the faq' and browsing the archives) appears to be to let zfs handle the disk if possible. Then I was planning to create four raidz2 filesystems (8+2) with two spares but would have preferred to create one large volume if possible rather than four smaller ones. Searching the archives brought me to http://www.opensolaris.org/jive/thread.jspa?messageID=72858 which is an elegant way to solve my quest for space. May I suggest that the answer is included in the faq. First of all I will create one large volume doing zspool create myspace \ raidz2 dev01 dev02 .. dev10 spare dev21 raidz2 dev11 dev12 .. dev20 spare dev21 raidz2 dev22 dev23 .. dev31 spare dev42 raidz2 dev32 dev33 .. dev41 spare dev42 Can two raidz2 pool's share the same spare? Our main storage is a HDS 9585V Thunder with vxfs and raid5 on 400 GB sata disk handled by the storage system. If I would migrate to zfs that would mean 390 jbod's. What's the largest volume that zfs has been exposed to? Will it be viable to repeat the above mentioned command to create something like a 100+TB filesystem and create smaller ones inside each 4 TB in size? The files are approx. 1 MB and the thumbnails around 20 KB. regards Claus _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
