berk walker wrote:
Just a couple of things to think about before the board explodes. :-)
Are your drives doing DMA? Important.
Unfortunately no, these are serial ata drives and I saw this in the
dmesg output:
libata version 1.12 loaded.
sata_mv version 0.12
ACPI: PCI Interrupt 0000:03:04.0[A] -> GSI 27 (level, low) -> IRQ 18
ata1: SATA max PIO4 cmd 0x0 ctl 0xF88A2120 bmdma 0x0 irq 18
ata2: SATA max PIO4 cmd 0x0 ctl 0xF88A4120 bmdma 0x0 irq 18
ata3: SATA max PIO4 cmd 0x0 ctl 0xF88A6120 bmdma 0x0 irq 18
ata4: SATA max PIO4 cmd 0x0 ctl 0xF88A8120 bmdma 0x0 irq 18
ata1: dev 0 cfg 49:2f00 82:7869 83:7d09 84:4003 85:7869 86:3c01 87:4003
88:203f
ata1: dev 0 ATA, max UDMA/100, 156301488 sectors: lba48
ata1: dev 0 configured for PIO4
scsi0 : sata_mv
ata2: dev 0 cfg 49:2f00 82:7869 83:7d09 84:4003 85:7869 86:3c01 87:4003
88:203f
ata2: dev 0 ATA, max UDMA/100, 156301488 sectors: lba48
ata2: dev 0 configured for PIO4
scsi1 : sata_mv
ata3: dev 0 cfg 49:2f00 82:7869 83:7d09 84:4003 85:7869 86:3c01 87:4003
88:203f
ata3: dev 0 ATA, max UDMA/100, 156301488 sectors: lba48
ata3: dev 0 configured for PIO4
scsi2 : sata_mv
ata4: dev 0 cfg 49:2f00 82:7869 83:7d09 84:4003 85:7869 86:3c01 87:4003
88:203f
ata4: dev 0 ATA, max UDMA/100, 156301488 sectors: lba48
ata4: dev 0 configured for PIO4
scsi3 : sata_mv
blk_queue_max_hw_segments: set to minimum 1
Vendor: ATA Model: Maxtor 6Y080M0 Rev: YAR5
Type: Direct-Access ANSI SCSI revision: 05
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
blk_queue_max_hw_segments: set to minimum 1
I think that I am in PI04 mode, but this is an issue with the driver.
Are you using mdadm, or the compubox's firmware... (?)
The firmware for the controller is set to JBOD.
when you are (re)syncing, you can echo a min speed command, also.
I set the min to 1000
orion raid # cat /proc/sys/dev/raid/speed_limit_min
1000
It seems to me this might be more of a driver issue, can anyone elaborate?
Spencer
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