Re: [PERFORM] hp ciss on freebsd

2007-11-08 Thread Vivek Khera
On Nov 5, 2007, at 8:19 AM, Claus Guttesen wrote: I will get four 72 GB sas-disks at 15K rpm. Reading the archives suggest raid 1+0 for optimal read/write performance, but with a solid raid-controller raid 5 will also perform very well when reading. If you only have 4 drives, I'd recommend

[PERFORM] hp ciss on freebsd

2007-11-05 Thread Claus Guttesen
Hi. We are using a HP DL 380 G5 with 4 sas-disks at 10K rpm. The controller is a built in ciss-controller with 256 MB battery-backed cache. It is partitioned as raid 1+0. Our queries are mainly selects. I will get four 72 GB sas-disks at 15K rpm. Reading the archives suggest raid 1+0 for

Re: [PERFORM] hp ciss on freebsd

2007-11-05 Thread Jeff Trout
On Nov 5, 2007, at 8:19 AM, Claus Guttesen wrote: Is the ciss-controller found in HP-servers a better raid-controller compared to the areca-raid-controller mentioned on this list? I've had great success with the P600 controller (upgraded to 512MB bbwc) plugged into an MSA70 with a pile

Re: [PERFORM] hp ciss on freebsd

2007-11-05 Thread Greg Smith
On Mon, 5 Nov 2007, Claus Guttesen wrote: Is the ciss-controller found in HP-servers a better raid-controller compared to the areca-raid-controller mentioned on this list? If you search the archives for cciss you'll see a few complaints about this controller not working all that well under