[plug] RAID 5

[Brad Campbell]

G'day all,

Finally got my new toy together (relevant part of dmesg attached)

I want to set up the 5 200GB drives in a software raid-5 which should 
give me roughly 800GB of space I guess.

If I set up the drives and configure the raidtab, plus have it set up to 
autodetect the array, is there any possibility in the future of being 
able to move the interfaces around without having to re-stripe the array?

I currently have 2 drives on most interfaces, but a bit later I'm going 
to get a 4 port IDE interface and would like to give each drive it's own 
channel. If I stripe the array now, can I move the drives to different 
interfaces later and not have to re-stripe the array?

The rest of the box is a pretty standard Athlon 2800+ with 512MB of 
PC3200 ram. It's a pretty quick machine :p)


Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 00:0f.0
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci00:0f.0
     ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA
     ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:DMA
SiI680: IDE controller at PCI slot 00:0d.0
PCI: Found IRQ 11 for device 00:0d.0
PCI: Sharing IRQ 11 with 00:09.0
PCI: Sharing IRQ 11 with 00:10.2
SiI680: chipset revision 2
SiI680: not 100% native mode: will probe irqs later
SiI680: BASE CLOCK == 133
     ide2: MMIO-DMA , BIOS settings: hde:pio, hdf:pio
     ide3: MMIO-DMA , BIOS settings: hdg:pio, hdh:pio
hda: WDC WD400EB-00CPF0, ATA DISK drive
hdb: JLMS XJ-HD165H, ATAPI CD/DVD-ROM drive
blk: queue c033e760, I/O limit 4095Mb (mask 0xffffffff)
hdc: WDC WD2000JB-00DUA1, ATA DISK drive
hdd: WDC WD2000JB-00DUA1, ATA DISK drive
blk: queue c033ebb4, I/O limit 4095Mb (mask 0xffffffff)
blk: queue c033ecf0, I/O limit 4095Mb (mask 0xffffffff)
hde: WDC WD2000JB-00DUA1, ATA DISK drive
hdf: WDC WD2000JB-00DUA1, ATA DISK drive
blk: queue c033f008, I/O limit 4095Mb (mask 0xffffffff)
blk: queue c033f144, I/O limit 4095Mb (mask 0xffffffff)
hdg: WDC WD2000JB-00DUA1, ATA DISK drive
blk: queue c033f45c, I/O limit 4095Mb (mask 0xffffffff)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0xe2806080-0xe2806087,0xe280608a on irq 11
ide3 at 0xe28060c0-0xe28060c7,0xe28060ca on irq 11
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=4865/255/63, UDMA(100)
hdc: attached ide-disk driver.
hdc: host protected area => 1
hdc: 390625000 sectors (200000 MB) w/8192KiB Cache, CHS=24315/255/63, 
UDMA(100)
hdd: attached ide-disk driver.
hdd: host protected area => 1
hdd: 390625000 sectors (200000 MB) w/8192KiB Cache, CHS=24315/255/63, 
UDMA(100)
hde: attached ide-disk driver.
hde: host protected area => 1
hde: 390625000 sectors (200000 MB) w/8192KiB Cache, CHS=24315/255/63, 
UDMA(100)
hdf: attached ide-disk driver.
hdf: host protected area => 1
hdf: 390625000 sectors (200000 MB) w/8192KiB Cache, CHS=24315/255/63, 
UDMA(100)
hdg: attached ide-disk driver.
hdg: host protected area => 1
hdg: 390625000 sectors (200000 MB) w/8192KiB Cache, CHS=24315/255/63, 
UDMA(100)
hdb: attached ide-cdrom driver.
hdb: ATAPI 48X DVD-ROM drive, 512kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
Partition check:
  hda: hda1 hda2 hda3
  hdc: hdc1
  hdd: hdd1
  hde: hde1
  hdf: hdf1
  hdg: hdg1

Thanks,
Brad