On Thu, Dec 16, 2010 at 12:59 AM, Lanky Doodle <lanky_doo...@hotmail.com> wrote: > I have been playing with ZFS for a few days now on a test PC, and I plan to > use if for my home media server after being very impressed!
Works great for that. Have a similar setup at home, using FreeBSD. > Also, at present I have 5x 1TB drives to use in my home server so I plan to > create a RAID-Z1 pool which will have my shares on it (Movies, Music, > Pictures etc). I then plan to increase this in sets of 5 (so another 5x 1TB > drives in Jan and nother 5 in Feb/March so that I can avoid all disks being > from the same batch). I did plan on creating seperate zpoolz with each set of > 5 drives; No no no. Create 1 pool. Create the pool initially with a single 5-drive raidz vdev. Later, add the next five drives to the system, and create a new raidz vdev *in the same pool*. Voila. You now have the equivalent of a RAID50, as ZFS will stripe writes to both vdevs, increaseing the overall size *and* speed of the pool. Later, add the next five drives to the system, and create a new raidz vdev in the same pool. Voila. You now have a pool with 3 vdevs, with read/writes being striped across all three. You can still lose 3 drives (1 per vdev) before losing the pool. The commands to do this are along the lines of: # zpool create mypool raidz disk1 disk2 disk3 disk4 disk5 # zpool add mypool raidz disk6 disk7 disk8 disk9 disk10 # zpool add mypool raidz disk11 disk12 disk13 disk14 disk15 Creating 1 pool gives you the best performance and the most flexibility. Use separate filesystems on top of that pool if you want to tweak all the different properties. Going with 1 pool also increases your chances for dedupe, as dedupe is done at the pool level. -- Freddie Cash fjwc...@gmail.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
