Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-06 Thread eric kustarz
On Feb 4, 2008, at 5:10 PM, Marion Hakanson wrote: [EMAIL PROTECTED] said: FYI, you can use the '-c' option to compare results from various runs and have one single report to look at. That's a handy feature. I've added a couple of such comparisons:

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-06 Thread Marion Hakanson
[EMAIL PROTECTED] said: Your finding for random reads with or without NCQ match my findings: http:// blogs.sun.com/erickustarz/entry/ncq_performance_analysis Disabling NCQ looks like a very tiny win for the multi-stream read case. I found a much bigger win, but i was doing RAID-0 instead

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-05 Thread Ross
There are *lots* of options for configuring a Thumper, what you choose really depends on the kind of performance you want. I found these sites incredibly helpful in working out what was best for us: http://blogs.sun.com/relling/entry/zfs_raid_recommendations_space_performance

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-05 Thread Ross
Gaaah, no idea what happened to that. It looked ok in preview, but it seems the message board is adding odd characters to my text. Trying again: RAID-Z2 Disks per setSetsWrite PerformanceRead PerformanceRead IOPS

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-04 Thread Marion Hakanson
[EMAIL PROTECTED] said: FYI, you can use the '-c' option to compare results from various runs and have one single report to look at. That's a handy feature. I've added a couple of such comparisons: http://acc.ohsu.edu/~hakansom/thumper_bench.html Marion

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-02 Thread eric kustarz
On Feb 1, 2008, at 11:17 AM, Marion Hakanson wrote: [EMAIL PROTECTED] said: Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or 9*5, with 1 hot spare. [EMAIL PROTECTED] said: How you can check the speed (I'm totally newbie on Solaris) We're deploying a

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-01 Thread Marion Hakanson
[EMAIL PROTECTED] said: Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or 9*5, with 1 hot spare. [EMAIL PROTECTED] said: How you can check the speed (I'm totally newbie on Solaris) We're deploying a new Thumper w/750GB drives, and did space vs performance

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-01 Thread Albert Shih
Le 01/02/2008 à 11:17:14-0800, Marion Hakanson a écrit [EMAIL PROTECTED] said: Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or 9*5, with 1 hot spare. [EMAIL PROTECTED] said: How you can check the speed (I'm totally newbie on Solaris) We're

[zfs-discuss] ZFS configuration for a thumper

2008-01-30 Thread Albert Shih
Hi all I've a Sun X4500 with 48 disk of 750Go The server come with Solaris install on two disk. That's mean I've got 46 disk for ZFS. When I look the defautl configuration of the zpool zpool create -f zpool1 raidz c0t0d0 c1t0d0 c4t0d0 c6t0d0 c7t0d0 zpool add -f zpool1 raidz c0t1d0 c1t1d0

Re: [zfs-discuss] ZFS configuration for a thumper

2008-01-30 Thread Albert Shih
Le 30/01/2008 à 11:01:35-0500, Kyle McDonald a écrit Albert Shih wrote: What's kind of pool you use with 46 disk ? (46=2*23 and 23 is prime number that's mean I can make raidz with 6 or 7 or any number of disk). Depending on needs for space vs. performance, I'd probably pixk eithr 5*9

Re: [zfs-discuss] ZFS configuration for a thumper

2008-01-30 Thread Tim
On 1/30/08, Albert Shih [EMAIL PROTECTED] wrote: Thanks for the tips... How you can check the speed (I'm totally newbie on Solaris) I've use mkfile 10g for write and I've got same perf with 5*9 or 9*5. Have you some advice about tool like iozone ? Regards. -- Albert

Re: [zfs-discuss] ZFS configuration for a thumper

2008-01-30 Thread Kyle McDonald
Albert Shih wrote: What's kind of pool you use with 46 disk ? (46=2*23 and 23 is prime number that's mean I can make raidz with 6 or 7 or any number of disk). Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or 9*5, with 1 hot spare. -Kyle Regards. --

Re: [zfs-discuss] ZFS configuration for a thumper

2008-01-30 Thread Marion Hakanson
[EMAIL PROTECTED] said: I'd take a look at bonnie++ http://www.sunfreeware.com/programlistintel10.html#bonnie++ Also filebench: http://www.solarisinternals.com/wiki/index.php/FileBench You'll see the most difference between 5x9 and 9x5 in small random reads: