Re: [zfs-discuss] ZFS Project Hardware

2008-05-23 Thread Pascal Vandeputte
That 1420SA will not work, period. Type "1420sa solaris" in Google and you'll find a thread about the problems I had with it. I sold it and took the cheap route again with a Silicon Image 3124-based adapter and had more problems which now probably would be solved with the latest Solaris updates

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R (A

2008-04-20 Thread Pascal Vandeputte
Hi, First of all, my apologies for some of my posts appearing 2 or even 3 times here, the forum seems to be acting up, and although I received a Java exception for those double postings and they never appeared yesterday, apparently they still made it through eventually. Back on topic: I fruitl

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-19 Thread Pascal Vandeputte
Thanks a lot for your input, I understand those numbers a lot better now! I'll look deeper into hardware issues. It's a pity that I can't get older BIOS versions flashed. But I've got some other hardware lying around. Someone suggested lowering the 35 iops default, but I can't find any informat

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-19 Thread Pascal Vandeputte
Great, superb write speeds with a similar setup, my motivation is growing again ;-) It just occurs to me that I have a spare Silicon Image 3124 SATA card lying around. I was postponing testing of these drives on my desktop because it has an Intel ICH9 SATA controller probably quite similar to t

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-19 Thread Pascal Vandeputte
(the lt and gt symbols are filtered by the forum I guess; replaced with minus signs now) # format Searching for disks...done AVAILABLE DISK SELECTIONS: 0. c1t0d0 -DEFAULT cyl 45597 alt 2 hd 255 sec 126- /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED],2/[EMAIL PROTECTED],0

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-19 Thread Pascal Vandeputte
Thanks, I'll try installing Solaris on a 1GB CF card in an CF-to-IDE adapter, so all disks will then be completely available to ZFS. Then I needn't worry about different size block devices either. I also find it weird that the boot disk is displayed differently from the other two disks if I run

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-19 Thread Pascal Vandeputte
I see. I'll only be running a minimal Solaris install with ZFS and samba on this machine, so I wouldn't expect immediate memory issues with 2 gigabytes of RAM. OTOH I read that ZFS is a real memory hog so I'll be careful. I've tested swap on a ZFS volume now, it's really easy so I'll try running

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-18 Thread Pascal Vandeputte
Hi, Thanks for your input. Unfortunately, all 3 drives are identical Seagate 7200.11 drives which I bought separately and they are attached in no particular order. Thanks about the /dev/zero remark, I didn't know that. >From what I've seen this afternoon, I'm starting to suspect a >hardware/f

Re: [zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R

2008-04-18 Thread Pascal Vandeputte
Thanks for all the replies! Some output from "iostat -x 1" while doing a dd of /dev/zero to a file on a raidz of c1t0d0s3, c1t1d0 and c1t2d0 using bs=1048576: extended device statistics devicer/sw/s kr/s kw/s wait actv svc_t %w %b sd0 0.0

[zfs-discuss] ZFS raidz write performance:what to expect from SATA drives on ICH9R (AHCI)

2008-04-17 Thread Pascal Vandeputte
Hi everyone, I've bought some new hardware a couple of weeks ago to replace my home fileserver: Intel DG33TL motherboard with Intel gigabit nic and ICH9R Intel Pentium Dual E2160 (= 1.8GHz Core 2 Duo 64-bit architecture with less cache, cheap, cool and more than fast enough) 2 x 1 GB DDR2 RAM