Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-16 Thread Richard Elling
Paul B. Henson wrote: On Wed, 13 May 2009, Richard Elling wrote: If I wanted to swap between a 32GB SSD and a 1TB SATA drive, I guess I would need to make a partition/slice on the TB drive of exactly the size of the SSD? Yes, but note that an SMI label hangs onto the outdated notion

Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-15 Thread Paul B. Henson
On Wed, 13 May 2009, Richard Elling wrote: > > If I wanted to swap between a 32GB SSD and a 1TB SATA drive, I guess I > > would need to make a partition/slice on the TB drive of exactly the > > size of the SSD? > > Yes, but note that an SMI label hangs onto the outdated notion of > cylinders and y

Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-13 Thread Richard Elling
Paul B. Henson wrote: On Wed, 13 May 2009, Richard Elling wrote: I didn't find that exact part number, but I notice that manufacturing part 371-4196 32GB Solid State Drive, SATA Interface is showing up in a number of systems. IIRC, this would be an Intel X25-E. Hmm, the part numbe

Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-13 Thread Eric D. Mudama
On Wed, May 13 at 17:27, Paul B. Henson wrote: On Wed, 13 May 2009, Richard Elling wrote: Intel claims > 3,300 4kByte random write iops. Is that before after the device gets full and starts needing to erase whole pages to write new blocks 8-/? The quoted numbers are minimums, not "up to" li

Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-13 Thread Paul B. Henson
On Wed, 13 May 2009, Richard Elling wrote: > I didn't find that exact part number, but I notice that manufacturing part >371-4196 32GB Solid State Drive, SATA Interface > is showing up in a number of systems. IIRC, this would be an Intel X25-E. Hmm, the part number I provided was off an offi

Re: [zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-13 Thread Richard Elling
Paul B. Henson wrote: I see Sun has recently released part number XRA-ST1CH-32G2SSD, a 32GB SATA SSD for the x4540 server. I didn't find that exact part number, but I notice that manufacturing part 371-4196 32GB Solid State Drive, SATA Interface is showing up in a number of systems. IIRC,

[zfs-discuss] X4540 32GB SSD in x4500 as slog

2009-05-08 Thread Paul B. Henson
I see Sun has recently released part number XRA-ST1CH-32G2SSD, a 32GB SATA SSD for the x4540 server. We have five x4500's we purchased last year that we are deploying to provide file and web services to our users. One issue that we have had is horrible performance for the "single threaded process