> If you could start with a 3 drive zraid2 as the underlying pool > storage and later add drives to the existing zraid2 as space was > needed, then ZFS would be the ultimate FS (at least for me). > > Any takers? How hard would this be? You can do something like this: zpool create foo raidz2 dev0 dev1 dev2 dev3 zpool add foo raidz2 dev4 dev5 dev6 dev7 The new devices are in a different raidz2 group but but *all of the space* will be used for any filesystem on this pool -- isn't this good enough and if not, why? If you add a new disk to the same raid, you have to redistirbute most data. Not worth it Note you need at least 3 disks for raidz and 4 disks for raidz2. In general you want to put almost all your disks in a single pool but not in a single mirror, raidz or raidz2. Root zfs should be in its own pool and perhaps databases. See http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_GuideReceived on Thu May 10 2007 - 20:46:06 UTC
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