Hi,
I'm going to build a new pool, to replace my current one. Currently I'm using 4x1TB disks in RAIDZ2, planning to have a RAIDZ(1) pool using 3 or 4 2TB disks (I plan to have it zfs-replicated to the other server - so I'm not worried that much about redundancy).
I'm looking for an advice on what would be the best number of disks for RAIDZ - I've read (in cyberjock's "
Slideshow explaining VDev, zpool, ZIL and L2ARC for noobs!
") that I should use:
What if I'm going to use compression? I'm planning to set compression=lz4 (which seems sane).
Is there a way to calculate the "right" (or best performing:)) amount of disks for an lz4 compressed RAIDZ pool?
I'm going to build a new pool, to replace my current one. Currently I'm using 4x1TB disks in RAIDZ2, planning to have a RAIDZ(1) pool using 3 or 4 2TB disks (I plan to have it zfs-replicated to the other server - so I'm not worried that much about redundancy).
I'm looking for an advice on what would be the best number of disks for RAIDZ - I've read (in cyberjock's "
Slideshow explaining VDev, zpool, ZIL and L2ARC for noobs!
") that I should use:
If you are not using compression:
RAIDZ1 should have the total number of drives equal to 2n + 1. (ie 3, 5, 9, etc. drives for the VDev)
What if I'm going to use compression? I'm planning to set compression=lz4 (which seems sane).
Is there a way to calculate the "right" (or best performing:)) amount of disks for an lz4 compressed RAIDZ pool?