Re: [zfs-discuss] file access algorithm within pools

2006-07-18 Thread Eric Schrock
Currently, the algorithm is approximately round-robin. We try to keep all vdevs working at all times, with a slight bias towards those with less capacity. So if you add a new disk to a pool whose vdevs are 70% full, we'll gradually schedule more work for the empty disk until all the vdevs are aga

[zfs-discuss] file access algorithm within pools

2006-07-18 Thread David Blacklock
Hello, What is the access algorithm used within multi-component pools for a given pool, and does it change when one or more members of the pool become degraded ? examples: zpool create mtank mirror c1t0d0 c2t0d0 mirror c3t0d0 c4t0d0 mirror c5t0d0 c6t0d0 or; zpool create ztank raidz c1t0d