SC440 and RAID with 5/i controller

Stan Kaufman skaufman at epimetrics.com
Tue Dec 19 17:43:18 CST 2006


Patrick Boyd at Dell recently posted this to the list:

===

For the SC family of servers you'll need a SAS 5/iR. This will allow you
to mirror two drives. I don't believe we sell PERC 5/i's in SC servers
and for just a mirror its overkill.

For those of you that are interested these are out SAS cards:

SAS 5/i  - Internal interface SAS card (no RAID)
SAS 5/e  - External interface SAS card (no RAID)
SAS 5/iR - Internal interface SAS card with Mirroring (RAID1) or
Striping (RAID0) on two drives, (can also be used like a SAS 5/I)
PERC 5/i - Internal interface SAS RAID card (RAID 0,1,5,10,50 and
hotspares)
PERC 5/e - External interface SAS RAID card (RAID 0,1,5,10,50 and
hotspares)

Patrick Boyd
Dell Storage Software Engineer
(512)728-3182

===

I just got an SC440 with, I believe, the SAS 5/i card. I am attempting 
to setup standard software RAID using the techniques (debian distro) 
that I've successfully used in the past on other boxes. I'm afraid that 
this may not be possible after all and that I purchased the wrong unit. 
Can anyone confirm whether it is possible to setup standard software 
RAID with an SC440 using the 5/i controller?

Or is the controller in this box defective? Here's what I see in dmesg 
during boot. It appears to me that there's a problem probing the second 
drive.

===

ata_piix 0000:00:1f.2: version 2.00ac6
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ACPI: PCI Interrupt 0000:00:1f.2[C] -> GSI 20 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0xFE00 ctl 0xFE12 bmdma 0xFEC0 irq 18
ata2: SATA max UDMA/133 cmd 0xFE20 ctl 0xFE32 bmdma 0xFEC8 irq 18
scsi0 : ata_piix
ata1.00: ATA-7, max UDMA/133, 156250000 sectors: LBA48 NCQ (depth 0/32)
ata1.00: ata1: dev 0 multi count 8
ata1.01: ATA-7, max UDMA/133, 156250000 sectors: LBA48 NCQ (depth 0/32)
ata1.01: ata1: dev 1 multi count 8
ata1.00: configured for UDMA/133
ata1.01: configured for UDMA/133
scsi1 : ata_piix
ata2: port is slow to respond, please be patient (Status 0xff)
ata2: port failed to respond (30 secs, Status 0xff)
ata2: SRST failed (status 0xFF)
ata2: SRST failed (err_mask=0x100)
ata2: softreset failed, retrying in 5 secs
ata2: SRST failed (status 0xFF)
ata2: SRST failed (err_mask=0x100)
ata2: softreset failed, retrying in 5 secs
ata2: SRST failed (status 0xFF)
ata2: SRST failed (err_mask=0x100)
ata2: reset failed, giving up
scsi 0:0:0:0: Direct-Access     ATA      WDC WD800JD-75MS 10.0 PQ: 0 
ANSI: 5
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 >
sd 0:0:0:0: Attached scsi disk sda
scsi 0:0:1:0: Direct-Access     ATA      WDC WD800JD-75MS 10.0 PQ: 0 
ANSI: 5
SCSI device sdb: 156250000 512-byte hdwr sectors (80000 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 156250000 512-byte hdwr sectors (80000 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
sdb: sdb1
sd 0:0:1:0: Attached scsi disk sdb

===

If there is no problem with this controller, is there any upgrade 
option, or am I hosed?

Many thanks for any help!



More information about the Linux-PowerEdge mailing list