RE: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread Bradley Radjoo
Indeed, driver tunable ;-) All the best Richard, would like to know it goes Bradley -Original Message- From: Richard Tector [mailto:richardtec...@thekeelecentre.com] Sent: 12 February 2009 08:05 PM To: Bradley Radjoo Cc: freebsd-performance@freebsd.org Subject: Re: Extremely slow write

Re: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread Richard Tector
Bradley Radjoo wrote: Thanks very much Richard, (They are 2 X 73Gig Ultra 320 scsi SAS drives) No idea then, sorry. But I do have 3 R200's which also use the SAS6 controller due to arrive tomorrow, so I'll see what results I get. Richard ___ freebs

Re: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread Richard Tector
O. Hartmann wrote: When I read this posting I was quite happy having found a possible solution, but I can't find the above mentioned OID, FreeBSD 8.0-CURRENT/amd64 (running on this box) shows only "hw.ata.wc: 1" as a relevant OID. No hw.mpt.XXX OIDs anywere. This is the part from DMESG reflecti

Re: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread O. Hartmann
Bradley Radjoo wrote: Thanks very much Richard, (They are 2 X 73Gig Ultra 320 scsi SAS drives) BUT seems that even with the UP kernel, I still get issues.. This is what I see in dmesg : mpt0: port 0xec00-0xecff mem 0xdfcec000-0xdfce,0xdfcf-0xdfcf irq 15 at device 0.0 on pci5 mpt0:

RE: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread Bradley Radjoo
Thanks very much Richard, (They are 2 X 73Gig Ultra 320 scsi SAS drives) BUT seems that even with the UP kernel, I still get issues.. This is what I see in dmesg : mpt0: port 0xec00-0xecff mem 0xdfcec000-0xdfce,0xdfcf-0xdfcf irq 15 at device 0.0 on pci5 mpt0: [ITHREAD] mpt0: MPI Vers

Re: Extremely slow write speeds to disk : FreeBSD 7.1 and Dell SAS 6/iR Adapter

2009-02-12 Thread Richard Tector
Bradley Radjoo wrote: Greetings, Please can you assist. I have attempted most of the popular BSD Variants such as NetBSD, Open BSD, FreeBSD... The only distrubution that seems to work on the is Dell SAS 6/iR Adapter is FreeBSD 7.1 Firmware version & date : 9/29/2008 00.25.47.00 But the issue i