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SmartArray 5300 weird behaviour

 
Miki_4
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‎08-23-2003 11:27 AM

‎08-23-2003 11:27 AM

SmartArray 5300 weird behaviour

I have a HP/Compaq SmartArray5300 controller sititng on a PC in a 32nit/33MHz PCI slot, with two Cheetah 10KRPM disks on it.
Motherboard is a Gigabyte GA7VAX, OS is WindowsXP.

When configured for RAID1, HD Tach measures 50MB/sec. This is correct.
When configured for RAID0, it measures 40MB/sec instead of ~100MB/sec.

The PCI is not saturated by anything at that point (to my knowledge), and since RAID1 works at 50MB/sec, this doesn't look like some SCSI bus limitation either.

This happens both when the two drives are connected to the same channel and when they're connected to seperate ones.

Help?
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