Problems with Mylex DAC960P RAID controller
I emailed this list a couple of weeks ago with problems I was having with an Intergraph SMP server. I ended up giving up with that box, and built a new server with a 2 ghz Athlon, 1GB RAM, etc. I kept the RAID array, however, as it was the most expensive part of the old server, and is still usable. The array is three 9 gig IBM SCSI-2UW disks on a Mylex DAC960P controller. The controller was recently updated to the latest firmware (2.73)
I'm having problems, however, trying to get the card to work. Whenever I try to insert the module for the card into my kernel, the system completely hangs. I tried this both with the kernel version that comes with my distro CD, and 2.4.18, compiling it directly into the kernel with the latter. In both cases, it hanged when trying to load the driver. It will display the version information, but that's it.
Any idea what's going on? I just convinced the boss to spend some money for new equipment, and I'd rather not have to spend more at the moment.
TIA.
Hey,
Quoted 7 lines · Chris Snyder
I emailed this list a couple of weeks ago with problems I was having with an Intergraph SMP server. I ended up giving up with that box, and built a new server with a 2 ghz Athlon, 1GB RAM, etc. I kept the RAID array, however, as it was the most expensive part of the old server, and is still usable. The array is three 9 gig IBM SCSI-2UW disks on a Mylex DAC960P controller. The controller was recently updated to the latest firmware (2.73)
DAC960P ? Ive got a box running 2.4.18 with a Mylex DAC960PTL1 card. The box is rock solid. If my memory isnt hosed, the correct name of the card is 'Mylex AccelRaid 250'.
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I'm having problems, however, trying to get the card to work. Whenever I try to insert the module for the card into my kernel, the system completely hangs. I tried this both with the kernel version that comes with my distro CD, and 2.4.18, compiling it directly into the kernel with the latter. In both cases, it hanged when trying to load the
I`ve got it compiled in.
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driver. It will display the version information, but that's it.
The DAC960 driver is quite verbose - this is what I`ve got :
kernel: DAC960: ***** DAC960 RAID Driver Version 2.4.11 of 11 October 2001 *****
kernel: DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <[email protected]>
kernel: DAC960#0: Configuring Mylex DAC960PTL1 PCI RAID Controller
kernel: DAC960#0: Firmware Version: 4.07-0-29, Channels: 1, Memory Size: 8MB
kernel: DAC960#0: PCI Bus: 0, Device: 15, Function: 1, I/O Address: Unassigned
kernel: DAC960#0: PCI Address: 0xD9000000 mapped at 0xE0800000, IRQ Channel: 11
kernel: DAC960#0: Controller Queue Depth: 124, Maximum Blocks per Command: 128
kernel: DAC960#0: Driver Queue Depth: 123, Scatter/Gather Limit: 33 of 33 Segments
kernel: DAC960#0: Stripe Size: 64KB, Segment Size: 8KB, BIOS Geometry: 255/63
kernel: DAC960#0: Physical Devices:
kernel: DAC960#0: 0:2 Vendor: IBM Model: DNES-309170W Revision: SAH0
kernel: DAC960#0: Serial Number: AJLCD237
kernel: DAC960#0: Disk Status: Online, 17915904 blocks
kernel: DAC960#0: 0:4 Vendor: IBM Model: DNES-309170W Revision: SAH0
kernel: DAC960#0: Serial Number: AJLCD597
kernel: DAC960#0: Disk Status: Online, 17915904 blocks
kernel: DAC960#0: 0:6 Vendor: IBM Model: DNES-309170W Revision: SAH0
kernel: DAC960#0: Serial Number: AJLCE762
kernel: DAC960#0: Disk Status: Online, 17915904 blocks
kernel: DAC960#0: Logical Drives:
kernel: DAC960#0: /dev/rd/c0d0: RAID-5, Online, 35831808 blocks, Write Thru
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Any idea what's going on? I just convinced the boss to spend some money
Never had problems with the DAC960 driver in 2.4 (or 2.2 for that matter) ... Could you provide the message printed by your kernel ? We can continue from there ... maybe Leonard has an idea of what`s going on ... Leonard ?
Quoted 8 lines
for new equipment, and I'd rather not have to spend more at the moment.
TIA.-
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Cheers,
Morten
Signature · 8 lines
"Livet er ikke for nybegynnere" - sitat fra en klok person. mvh Morten Helgesen UNIX System Administrator & C Developer Nextframe AS [email protected] / 93445641 http://www.nextframe.net
Quoted 2 lines · Morten Helgesen
DAC960P ? I`ve got a box running 2.4.18 with a Mylex DAC960PTL1 card. The
box is rock solid. If my memory isn`t hosed, the correct name of the card is 'Mylex AccelRaid 250'.
The card BIOS says it's a DAC960P - that's all the info I've got.
Quoted 4 lines
The DAC960 driver is quite verbose - this is what I`ve got :
kernel: DAC960: ***** DAC960 RAID Driver Version 2.4.11 of 11 October 2001 *****
kernel: DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <[email protected]>
That's all the info it prints, then it hangs. It seems to be that something's happening when it tries to detect the controller.
Quoted 3 lines
Never had problems with the DAC960 driver in 2.4 (or 2.2 for that matter) ... Could you provide the message printed by your kernel ? We can continue from there ... maybe Leonard has an idea of what`s going on ... Leonard ?
There really aren't any messages printed by the kernel, other than the DAC960 version and copyright info, since it completely hangs. I'm booting from a distro (Gentoo) installation CD, so no syslog facility is in place.
Quoted 7 lines · Chris Snyder
Quoted 3 lines · Morten Helgesen
DAC960P ? I
ve got a box running 2.4.18 with a Mylex DAC960PTL1 card. The box is rock solid. If my memory isnt hosed, the correct name of the card is 'Mylex AccelRaid 250'.The card BIOS says it's a DAC960P - that's all the info I've got.
Aah ...
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Quoted 7 lines
The DAC960 driver is quite verbose - this is what I`ve got :
kernel: DAC960: ***** DAC960 RAID Driver Version 2.4.11 of 11 October 2001
*****
kernel: DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <[email protected]>That's all the info it prints, then it hangs. It seems to be that something's happening when it tries to detect the controller.
Yep - I see ... you haven`t got another linux box around (with a distro actually installed :), do you ? I guess
it would be easier to debug this if you could move the controller to another box and actually fiddle with the driver source ... debug printks can actually be useful :)
I noticed that the return value from request_region() is not checked ...
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Quoted 5 lines
Never had problems with the DAC960 driver in 2.4 (or 2.2 for that matter)
...
Could you provide the message printed by your kernel ? We can continue from there ... maybe Leonard has an idea of what`s going on ... Leonard ?There really aren't any messages printed by the kernel, other than the DAC960 version and copyright info, since it completely hangs. I'm booting from a distro (Gentoo) installation CD, so no syslog facility is
As I said - it would be useful if you could actually put the controller in a box _with_ a distro already installed :)
Quoted 2 lines
in place.
Cheers
Signature · 8 lines
"Livet er ikke for nybegynnere" - sitat fra en klok person. mvh Morten Helgesen UNIX System Administrator & C Developer Nextframe AS [email protected] / 93445641 http://www.nextframe.net
Quoted 8 lines · Morten Helgesen
Quoted 6 lines
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The DAC960 driver is quite verbose - this is what I`ve got :
kernel: DAC960: ***** DAC960 RAID Driver Version 2.4.11 of 11 October 2001 *****
kernel: DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <[email protected]>That's all the info it prints, then it hangs. It seems to be that something's happening when it tries to detect the controller.
Quoted 7 lines
Yep - I see ... you haven`t got another linux box around (with a distro actually installed :), do you ? I guess
it would be easier to debug this if you could move the controller to another box and actually fiddle with the driver source ... debug printks can actually be useful :)I noticed that the return value from
request_region()is not checked ...
I tried putting the controller and drives into my main work machine (running Gentoo Linux 1.2), and it also hangs, though it doesn't even display the version info. This leads me to believe that if I debugged it on my machine, the results would be different than if I debugged it on the server.
Would there be any way for me to use this card as a normal SCSI card, using a SCSI driver, and just not use the RAID functionality? This machine isn't going to be stressed very much, and software RAID should be adequate.