Re: [zfs-discuss] stripes of different size mirror groups

2010-10-28 Thread Roy Sigurd Karlsbakk
> If I understand correctly, the performance would then drop to the same > level as if I set them up as separate volumes in the first place. > > So, I get double the performance for 75% of my data, and equal > performance for 25% of my data, and my L2ARC will adapt to my working > set across both

Re: [zfs-discuss] stripes of different size mirror groups

2010-10-28 Thread Rob Cohen
Thanks, Ian. If I understand correctly, the performance would then drop to the same level as if I set them up as separate volumes in the first place. So, I get double the performance for 75% of my data, and equal performance for 25% of my data, and my L2ARC will adapt to my working set across b

Re: [zfs-discuss] stripes of different size mirror groups

2010-10-28 Thread Ian Collins
On 10/29/10 09:40 AM, Rob Cohen wrote: I have a couple drive enclosures: 15x 450gb 15krpm SAS 15x 600gb 15krpm SAS I'd like to set them up like RAID10. Previously, I was using two hardware RAID10 volumes, with the 15th drive as a hot spare, in each enclosure. Using ZFS, it could be nice to ma

[zfs-discuss] stripes of different size mirror groups

2010-10-28 Thread Rob Cohen
I have a couple drive enclosures: 15x 450gb 15krpm SAS 15x 600gb 15krpm SAS I'd like to set them up like RAID10. Previously, I was using two hardware RAID10 volumes, with the 15th drive as a hot spare, in each enclosure. Using ZFS, it could be nice to make them a single volume, so that I could