Interesting comments.. But I am confused.
Performance for my backups (compression/deduplication) would most likely not be #1 priority. I want my VMs to run fast - so is it deduplication that really slows things down? Are you saying raidz2 would overwhelm current I/O controllers to where I could not saturate 1 GB network link? Is the CPU I am looking at not capable of doing dedup and compression? Or are no CPUs capable of doing that currently? If I only enable it for the backup filesystem will all my filesystems suffer performance wise? Where are the bottlenecks in a raidz2 system that I will only access over a single gigabit link? Are the insurmountable? > > I plan to start with 5 1.5 TB drives in a raidz2 > configuration and 2 > > mirrored boot drives. > > You want to use compression and deduplication and > raidz2. I hope you didn't > want to get any performance out of this system, > because all of those are > compute or IO intensive. > > FWIW ... 5 disks in raidz2 will have capacity of 3 > disks. But if you bought > 6 disks in mirrored configuration, you have a small > extra cost, and much > better performance. > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discu > ss -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
