Brett Serkez spake the following on 4/2/2007 2:06 PM:
No, it is an older PIII with two IDE hard drives plugged into the motherboard. To the best of my knowledge, this is not the case.
It was common for some boards in that era to still have a promise ide chip embedded in them.
I rebooted so I could check the BIOS and checked the boot messages with dmesg. I see no evidence of an sort of RAID controller. Here are the relevant dmesg messages:
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx ICH: IDE controller at PCI slot 0000:00:1f.1 ICH: chipset revision 2 ICH: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:DMA Probing IDE interface ide0... hda: Maxtor 36147H8, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... hdc: CRD-8400B, ATAPI CD/DVD-ROM drive hdd: Maxtor 4D060H3, ATA DISK drive hdc: Disabling (U)DMA for CRD-8400B (blacklisted) ide1 at 0x170-0x177,0x376 on irq 15 hda: max request size: 128KiB hda: 117231408 sectors (60022 MB) w/512KiB Cache, CHS=65535/16/63, UDMA(66) hda: cache flushes not supported hda: hda1 hda2 hdd: max request size: 128KiB hdd: 120069936 sectors (61475 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(66) hdd: cache flushes not supported hdd: hdd1 hdd2
Brett
You might get better performance if the second drive is a master instead of a slave. Looking at the dmraid man page, is it possible that the drives were in place on a raid system previously? It might be seeing the metadata and thinking it is a raid array.
http://www.linuxmanpages.com/man8/dmraid.8.php