I continue to have a problem understanding the output of zfs list. I've googled up a couple of what seem to be thorough explainations but somehow am still not getting it.
Or maybe this is just what it looks like, that is, a lot of space gone to parity striping. Name USED AVAIL REFER MOUNTPOINT p0 142k 460G 34.9 /z No filesystems created yet, but the available column is apparently saying there is a total of 460 GB of space available. Ok, if that is correct then it means that 6 disks when totalled individually adding up to 800+ GB has been reduced by nearly half to accomodate raidz. This is an install on a vbox vm. I created 6 more discs beyond 2 for a mirrored rpool. The extra discs are a temporary setup to hold some data off an install of oi 151_9 that I am about to do a fresh install of hipster on. I have some 420+ gb of installed vms on the hardware host. On the vm, I've created discs like so: 2 @ 96G 2 @ 116G 2 @ 216G There was no rhyme or reason to the sizing.. some have been in place for a while so I broke up a mirrored pair and destroyed all fs and the zpool on it. Then just started adding discs in 100GB increments. So, a total of roughly 854G Less whatever for various things... but small amounts. If used individually. So, in round figures it loses 50 % of available space in raidz config. I have no experience with raidz and have only ever mirrored paired discs. I put these discs in raidz in a effort to get a little more out of the total space. But in fact got very very little more space. I guessed that I would be left with around 600 GB of space.... based on a wag only. This is all assuming I haven't made some boneheaded mistake or am suffering from a boneheaded non-understanding of what `zfs list' tells us. Apparenly raidz does not really save enough space to make it worth doing. That is, in a space for config sense. Nothing really gained over just paired mirrors. _______________________________________________ openindiana-discuss mailing list [email protected] https://openindiana.org/mailman/listinfo/openindiana-discuss
