Kam Lane wrote: > I'm getting ready to test a thumper (500gig drives/ 16GB) as a backup store > for small (avg 2kb) encrypted text files. I'm considering a zpool of 7 x 5+1 > raidz1 vdevs to maximize space and provide some level of redundancy carved > into about 10 zfs filesystems. Since the files are encrypted, compression is > obviously out. Is it recommended to tune the zfs blocksize to 2KB for this > type of implementation? Also, has anyone noticed any performance impacts > presenting a config like this to a non-global zone? > > It depends on the read pattern. If you will be reading these small files randomly, then there may be a justification to tune recordsize. In general, backup/restore workloads are not random reads, so you may be ok with the defaults. Try it and see if it meets your performance requirements. -- richard
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