Comments on: A small problem with running 4 SSD RAID-0 on ICH10R http://www.linustechtips.com/build-logs/a-small-problem-with-running-4-ssd-raid-0-on-ich10r Computers, Tech Tips, paintball, or whatever I feel like... Wed, 08 Feb 2012 00:27:21 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Ricardo http://www.linustechtips.com/build-logs/a-small-problem-with-running-4-ssd-raid-0-on-ich10r/comment-page-1#comment-6469 Ricardo Mon, 12 Oct 2009 19:17:43 +0000 http://www.linustechtips.com/?p=413#comment-6469 Hello everyone! I've been use 3ware 9650SE 4 LPML controller since 2006 with 4 raptors 36gb in Raid 0. I encountered one review about BBU performance that talk controller in Balanced mode withou BBU and performance mode with BBU,but I cannot find it anymore. By the way, I don't understood the core of the question because was a forum and 2 people was a bad discussion about that. My question is: How diference is noticeably in Balanced mode with BBU vs Performance mode without BBU? When I put performance mode in the controller BIOS, is really run on "safe" mode? Thanks a lot and I'm sorry about my poor english. Hello everyone!

I’ve been use 3ware 9650SE 4 LPML controller since 2006 with 4 raptors 36gb in Raid 0. I encountered one review about BBU performance that talk controller in Balanced mode withou BBU and performance mode with BBU,but I cannot find it anymore. By the way, I don’t understood the core of the question because was a forum and 2 people was a bad discussion about that.
My question is: How diference is noticeably in Balanced mode with BBU vs Performance mode without BBU? When I put performance mode in the controller BIOS, is really run on “safe” mode?

Thanks a lot and I’m sorry about my poor english.

]]> By: Gabriel http://www.linustechtips.com/build-logs/a-small-problem-with-running-4-ssd-raid-0-on-ich10r/comment-page-1#comment-838 Gabriel Fri, 30 Jan 2009 17:30:09 +0000 http://www.linustechtips.com/?p=413#comment-838 I have used 3ware/AMCC controllers for a long time now, and I noticed that some combinations of options can get you very bad side effects. First, if you don't have a battery attached on the controller, the 9650/9690 series run in a kind of a "safe" mode that disable the write cache and syncs every write directly to the disk. Needless to say, this is the worst performance mode you can get. You may notice in the 3DM2 manager, in the controller settings tab, that there is a "StorSave" option: This option allows you to bypass the safe mode or on the contrary force it. If you don't have the BBU (battery backed unit), try running the card in StorSave "Performance" mode. This forces the controller to use the cache. Also, did you upgrade the controller to the last 9.5.1.1 codeset (=firmware AND driver upgrade)? I noticed a huge performance increase between 9.4.x and 9.5.x codesets. I'd be very interested to know if this solves your performance problem with that controller. I have used 3ware/AMCC controllers for a long time now, and I noticed that some combinations of options can get you very bad side effects. First, if you don’t have a battery attached on the controller, the 9650/9690 series run in a kind of a “safe” mode that disable the write cache and syncs every write directly to the disk. Needless to say, this is the worst performance mode you can get.

You may notice in the 3DM2 manager, in the controller settings tab, that there is a “StorSave” option: This option allows you to bypass the safe mode or on the contrary force it.

If you don’t have the BBU (battery backed unit), try running the card in StorSave “Performance” mode. This forces the controller to use the cache.

Also, did you upgrade the controller to the last 9.5.1.1 codeset (=firmware AND driver upgrade)? I noticed a huge performance increase between 9.4.x and 9.5.x codesets.

I’d be very interested to know if this solves your performance problem with that controller.

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