LOSTCIRCUITS |
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Internal 4-Way SATA RAID For The XPC
A Concept Study |
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(Review by MS, April 20, 2003)
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Test Configuration
- Test System
- Shuttle SB52G2 (server version)
- Intel Pentium4 2.53 GHz
- 2 x 1 GB Mushkin PC2100 unbuffered DDR (2:2:2 1T CMD Rate* 6T tRAS @ 133 MHz clock rate)
- Promise S150 TX4 four port SATA RAID PCI card
- 4 x Fujitsu MHS2040AT (40 GB) 2.5" SATA drives (4200 rpm, 512 kB cache)
- Shuttle 52x CDROM
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- System 2
- ASUS P4G8X
- Intel P4 3.0 GHz+
- Tyan Tachyon 9700 Pro
- 2 x 512 MB Mushkin PC3200 DDR
- IBM 120GXP (123 MB)
- 2 x Seagate Barracuda 7 SATA (RAID-0)
- Hitachi 12x DVD drive
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- Software
- Windows XP Corporate Edition
- WinXP ServicePack1
- Latest Intel chipset and LAN drivers
- HDTach 2.61
- WinBench99 2.0
- SiSoft Sandra 2002
- ATTO Disk Benchmark
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One issue with looking at file transfer / copy is that the target drive needs to be slower than the initiator. With a 4 disk RAID 0 as target, this is somewhat difficult to achieve, as alternative, we used the Intel "Canterwood" reference system with a 2 disk RAID 0 file transfer over Gigabit LAN. There are a few caveats, especially the problem of bus contention, that is, in the Shuttle SB52G2, the HubLink interface can turn into a bottleneck, also the different cache sizes need to be taken into account as well as the PCI bus as yet another bottleneck. Anyway, it turned out to be quite interesting.
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