Re: [zfs-discuss] Question about mirror vdev performance considerations

2009-08-12 Thread Richard Elling
Your example is too simple :-) On Aug 12, 2009, at 1:03 PM, Charles Menser wrote: With four drives A,A,B,B where A is fast access and/or high-throughput, and B is either slow to seek and/or has slower transfer speed, what are the implications for mirrored ZFS pools? In particular I am wonderin

[zfs-discuss] Question about mirror vdev performance considerations

2009-08-12 Thread Charles Menser
With four drives A,A,B,B where A is fast access and/or high-throughput, and B is either slow to seek and/or has slower transfer speed, what are the implications for mirrored ZFS pools? In particular I am wondering how the IO performance will compare between: zpool create mypool mirror A A mirror