[zfs-discuss] b131 OpenSol x86, 4 disk RAIDZ-1 scrub performance way down.

2010-02-01 Thread Jake Carroll
Hi all. Recent builds (b129, b130 and b131) have had me noticing some zpool performance issues when scrubbing. Running bare into some cheap SATA controllers, on a cheap mobo, running 6GB of DDR2 + an Intel Q6600, with 4 * 1TB Samsung consumer grade SATA drives, I've been accustomed to seeing

Re: [zfs-discuss] b131 OpenSol x86, 4 disk RAIDZ-1 scrub performance way down.

2010-02-01 Thread Eric D. Mudama
On Mon, Feb 1 at 16:12, Jake Carroll wrote: Hi all. Recent builds (b129, b130 and b131) have had me noticing some zpool performance issues when scrubbing. Running bare into some cheap SATA controllers, on a cheap mobo, running 6GB of DDR2 + an Intel Q6600, with 4 * 1TB Samsung consumer grade

Re: [zfs-discuss] b131 OpenSol x86, 4 disk RAIDZ-1 scrub performance way down.

2010-02-01 Thread Lutz Schumann
When you send data (as the mate did) , all data is rewritten and the settings you made (dedupe etc.) are effectivly applied. If you change a parameter (dedupe, compression) this holds only true for NEWLY written data. If you do not cange data, all data is still duped. Also when you send, all