How would one calculate system reliability estimates here? One is a RAIDZ set of 6 disks, the other a set of 8. The reliability of each RAIDZ set by itself isn't too hard to calculate, but put together, especially since they're different sizes, I don't know.
On Jul 19 2007, Richard Elling wrote: >After a cup of French coffee, I feel strong enough to recommend :-) > >David Smith wrote: >> What are your thoughts or recommendations on having a zpool made up of >> raidz groups of different sizes? Are there going to be performance >> issues? > > It is more complicated and, in general, more complicated is a bad thing. > But in your example, with only 2 top-level vdevs, it isn't overly > complicated. > > Performance issues will be difficult to predict because this hasn't been > studied. With the gazillions of possible permutations, it is not likely > to be extensively characterized. But it if it works for you, then be > happy :-) > -- richard > >> For example: >> >> pool: testpool1 >> state: ONLINE >> scrub: none requested >> config: >> >> NAME STATE READ WRITE CKSUM >> testpool1 ONLINE 0 0 0 >> >> raidz1 ONLINE 0 0 0 >> c12t600A0B800029E5EA000007234685122Ad0 ONLINE 0 0 0 >> c12t600A0B800029E5EA000007254685123Cd0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000072F46851256d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000073146851266d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000073746851278d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000074146851292d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA00000747468512B6d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA00000749468512C2d0 ONLINE 0 0 0 >> raidz1 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000074F468512E0d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA00000751468512E8d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA000007574685130Cd0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000075946851318d0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000075F4685132Ed0 ONLINE 0 0 0 >> c12t600A0B800029E5EA0000076546851342d0 ONLINE 0 0 0 >> >> >> Thanks, >> >> David >> >> >> This message posted from opensolaris.org >> _______________________________________________ >> 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 > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
