Slow Write Performance on 3ware controller

2006-07-22 Thread Richard Collyer
Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading to the 2 mirrored drives that I have on a 3ware 7006-2 I can get 8MB/sec over samba which i

Re: Slow Write Performance on 3ware controller

2006-07-22 Thread Richard Collyer
Completely ignore me. Write caching wasnt turned on. Cheers Richard Richard Collyer wrote: Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading

Re: Slow Write Performance on 3ware controller

2006-07-22 Thread Nikolas Britton
On 7/22/06, Richard Collyer <[EMAIL PROTECTED]> wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the numbers from my single 400GB S

Re: Slow Write Performance on 3ware controller

2006-07-22 Thread Nikolas Britton
On 7/23/06, Nikolas Britton <[EMAIL PROTECTED]> wrote: On 7/22/06, Richard Collyer <[EMAIL PROTECTED]> wrote: > Completely ignore me. Write caching wasnt turned on. > Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'.

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Richard Collyer
Nikolas Britton wrote: On 7/22/06, Richard Collyer <[EMAIL PROTECTED]> wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the number

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Nikolas Britton
On 7/23/06, Richard Collyer <[EMAIL PROTECTED]> wrote: Nikolas Britton wrote: > On 7/22/06, Richard Collyer <[EMAIL PROTECTED]> wrote: >> Completely ignore me. Write caching wasnt turned on. >> > > Even with write caching off you should be able to hit 50MB/s... did I > missing something? Try runn

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Richard Collyer
Nikolas Britton wrote: That would be unacceptable in my book. Whats the load on the system? Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot? Motherboard/CPU? The motherboard is an Intel N440BX running 2 PIII 600MHZ (feel the power). FreeBSD version is 5.4 32 bit PCI not sure if they ar

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Nikolas Britton
On 7/23/06, Richard Collyer <[EMAIL PROTECTED]> wrote: Nikolas Britton wrote: > That would be unacceptable in my book. Whats the load on the system? > Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot? > Motherboard/CPU? The motherboard is an Intel N440BX running 2 PIII 600MHZ (feel the powe

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Richard Collyer
Nikolas Britton wrote: Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I don't see any problem doing that... FreeBSD would only care if it was the boot drive AND if it also c

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Jonathan Horne
On Sunday 23 July 2006 06:04, Richard Collyer wrote: > Nikolas Britton wrote: > >> Would moving the top card to the bottom slot and putting the 9500S-12 in > >> the top slot screw with FreeBSD in anyway or will it just accept the > >> changes and keep on going? > > > > I don't see any problem doing

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Richard Collyer
Jonathan Horne wrote: ive been a 3ware fan for many years now. this pic was taken in 2001... http://www.dfwlp.org/~jhorne/pics/computerroom/raid01.jpg heh, you want to talk about pci placement based on fit of ide cables... lol try mine. in the end, after 5 years, im impressed mine is still chu

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Jonathan Horne
On Sunday 23 July 2006 11:11, Richard Collyer wrote: > > an btw to richard (and other 3ware users too), do you have the > > sysutils/tw_cli port installed?  very useful! > > No dont have the tw_cli installed. I'm a big fan of the 3DM2 web based > tool and havent found anything that it cant do for m

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Nikolas Britton
On 7/23/06, Jonathan Horne <[EMAIL PROTECTED]> wrote: On Sunday 23 July 2006 06:04, Richard Collyer wrote: > Nikolas Britton wrote: > >> Would moving the top card to the bottom slot and putting the 9500S-12 in > >> the top slot screw with FreeBSD in anyway or will it just accept the > >> changes

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Jonathan Horne
On Sunday 23 July 2006 11:27, Nikolas Britton wrote: > IBM Deathstars, not so fond memories of those drives. indeed. i was lucky to have bought mine several months before their quality dept took a nose dive. 2 of those drives are still in service. after almost 6 years, that might be considere

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Nikolas Britton
On 7/23/06, Jonathan Horne <[EMAIL PROTECTED]> wrote: On Sunday 23 July 2006 11:27, Nikolas Britton wrote: > IBM Deathstars, not so fond memories of those drives. indeed. i was lucky to have bought mine several months before their quality dept took a nose dive. 2 of those drives are still in s

Re: Slow Write Performance on 3ware controller

2006-07-23 Thread Mike Tancsa
On Sun, 23 Jul 2006 10:53:58 -0500, in sentex.lists.freebsd.questions you wrote: > >all this 3ware discussion inspired me to check out my 6.1-releng server and >see how its 3ware card stacks up to the previously posted scores. > >[EMAIL PROTECTED] ~]# diskinfo -t /dev/twed2 >/dev/twed2 >5