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SAS 5/IR Performance
I have recently purchased two PowerEdge 840's. Each has the internal SAS 5/IR Controller, with 4 x 250GB SATA drives. The config of the disks is two drives are mirrored to boot the OS, and the other two are not raided as the data can easily be restored. Both these machines are installed with Windows 2003 SP1. All the latest drivers are in use.
I have been VERY disappointed with the disk performance. Copying an amount of data ( 8GB sql database, single file) is taking literally 20 mins to copy. The OS becomes unresponsive. Any ideas ?
Xwpis ONOMA
7 Posts
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February 8th, 2012 12:00
I stumbled upon your message because I am experiencing the same problem. The link you supplied does not seem to be working after all this time, and I cannot find this LSIUtil anywhere! Can you please-please HELP?!? Thank you!
Gagir
1 Message
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October 25th, 2012 20:00
On the LSI site, search for LSIUtil_1.62.zip, else you only get docs.
Current link is: http://www.lsi.com/downloads/Public/Obsolete/Obsolete%20Common%20Files/LSIUtil_1.62.zip
I was able to force use write cache and force use 3Gbps link.
Strangely, the SAS would only negotiate 1.5Gbps with brand new 2T Caviar Black drives rated at 6Gbps.
One other thing to know is tha write cache fif only works on RAID arrays, a single disk does not perform, SATA is better for that.
Here is the SATA vs SAS performance for a single SATA drive vs a RAID0 array, hard diask are all the same.
At least now SAS is decent...:emotion-2:
Midwest Auto Se
1 Message
0
June 28th, 2016 09:00
Here's the link to the LSIUtil 1.62 as of 6/28/2016. It directly downloads the file. I also had a significant performance increase on my RAID-5 setup on a production server. No reboot or loss of data.
docs.avagotech.com/.../12351668