Testbed and Methods
The following benchmarks were used:
- IOMeter 2003.02.15
- WinBench 99 2.0
- FC-Test 1.0
- Intel SC5200 system case
- Intel SE7520BD2 mainboard
- Two Intel Xeon 2.8GHz CPUs with 800MHz FSB
- 2 x 512MB PC3200 ECC Registered DDR SDRAM
- IBM DTLA-307015 hard disk drive as system disk (15GB)
- Onboard ATI Rage XL graphics controller
- Windows 2000 Professional with Service Pack 4
The controller was installed into the mainboard’s PCI-Express x8 slot. We used Fujitsu MBA3073RC hard disk drives for this test session. They were installed into the standard boxes of the SC5200 system case and fastened with four screws at the bottom. The controller was tested with four and eight HDDs in the following modes:
- Degraded 8-disk RAID10 with one failed HDD
- Degraded 8-disk RAID5 with one failed HDD
- Degraded 8-disk RAID6 with one failed HDD
- Degraded 8-disk RAID6 with two failed HDDs
As we try to cover all possible array types, we will publish the results of degraded arrays. A degraded array is a redundant array in which one or more disks (depending on the array type) have failed but the array still stores data and performs its duties.
For comparison’s sake, we publish the results of a single Fujitsu MBA3073RC hard disk on an LSI SAS3041E-R controller as a kind of a reference point. We want to note that this combination of the HDD and controller has one problem: its speed of writing in FC-Test is very low.
By default the controller suggests to use a stripe size of 64KB. This is the size we always use in our tests, so we did not have to change the default setting.
We used the latest BIOS available at the manufacturer’s website for the controller and installed the latest drivers. The BIOS was version 9.1.1-0013 and the driver was version 18.104.22.168.