Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-22 Thread Richard Jahnel
You might try this and see what you get. Changing to a file backed fibretarget resulted in a 3x performance boost for me. locad...@storage1:~# touch /bigpool/uberdisk/vol1 locad...@storage1:~# sbdadm create-lu -s 10700G /bigpool/uberdisk/vol1 locad...@storage1:~# stmfadm add-view 600144f0383cc50

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Dave Pooser
> I'm off to straighten out my controller distribution, check to see if I have > write caching turned off on the motherboard ports, install the b132 build, > and possibly grab some dinner while I'm about it. I'll report back to the > list with any progress or lack thereof. OK, the issue seems to b

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Thomas Burgess
oh, so i WAS right? awesome On Sun, Feb 14, 2010 at 10:45 PM, Dave Pooser wrote: > > on my motherboard, i can make the onboard sata ports show up as IDE or > SATA, > > you may look into that. It would probably be something like AHCI mode. > > Yeah, I changed the motherboard setting from "enhan

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Dave Pooser
> on my motherboard, i can make the onboard sata ports show up as IDE or SATA, > you may look into that.  It would probably be something like AHCI mode. Yeah, I changed the motherboard setting from "enhanced" to AHCI and now those ports show up as SATA. -- Dave Pooser, ACSA Manager of Information

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Tim Cook
On Sun, Feb 14, 2010 at 8:49 PM, Thomas Burgess wrote: > > >> c7, c8 and c9 are LSI controllers using the MPT driver. The motherboard >> has >> 6 SATA ports which are presented as two controllers (presumably c10 and >> c11) >> one for ports 0-3 and one for ports 4 and 5; both currently use the >>

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Thomas Burgess
> > c7, c8 and c9 are LSI controllers using the MPT driver. The motherboard has > 6 SATA ports which are presented as two controllers (presumably c10 and > c11) > one for ports 0-3 and one for ports 4 and 5; both currently use the PCI-IDE > drivers. > > on my motherboard, i can make the onboard sat

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Bob Friesenhahn
On Sun, 14 Feb 2010, Dave Pooser wrote: c7, c8 and c9 are LSI controllers using the MPT driver. The motherboard has 6 SATA ports which are presented as two controllers (presumably c10 and c11) one for ports 0-3 and one for ports 4 and 5; both currently use the PCI-IDE drivers. One should expec

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Dave Pooser
> So which hard drives are connected to which controllers? > And what device drivers are those controllers using? 0. c7t0d0 /p...@0,0/pci8086,3...@3/pci1000,3...@0/s...@0,0 1. c7t1d0 /p...@0,0/pci8086,3...@3/pci1000,3...@0/s...@1,0 2. c8t0d0 /p

Re: [zfs-discuss] Painfully slow RAIDZ2 as fibre channel COMSTAR export

2010-02-14 Thread Nigel Smith
Hi Dave So which hard drives are connected to which controllers? And what device drivers are those controllers using? The output from 'format', 'cfgadm' and 'prtconf -D' may help us to understand. Strange that you say that there are two hard drives per controllers, but three drives are showing hi