Re: old Adaptec I2O RAID vs. a new Cheetah U320 15k => narrow/async
- From: "Folkert Rienstra" <see_reply-to@xxxxxxxx>
- Date: Thu, 10 Jan 2008 16:49:07 +0100
Frantisek.Rysanek@xxxxxxx wrote in
news:1757090c-ad35-46e8-9edc-e9cc5efe8a3c@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Dear everyone,
I'm having fun with some old hardware, I'm stress-testing an old
Adaptec RAID controller with a large number of disk drives etc.
While I'm at it, I've discovered an interesting incompatibility.
Related hardware:
Adaptec 3210 (I2O RAID, IOP303 + AIC7899 U160)
Seagate ST373455LC (73 GB, U320, 15k RPM)
The DPT/I2O BIOS always reports the disk negotiated as narrow/async/
3MBps. The disk is mounted in a hot-swap drawer in a 6bay SCA
enclosure, together with five other disks (various Seagate and Fujitsu) -
all the other disks are detected properly as U320.
How exactly does an U160 controller detect an U320 disk as U320?
The culprit disk is misdetected in this way no matter what, regardless
of which bay I put it into.
Did you try different setup parameters in the setup utility.
Is there a setting for Domain Validation (or whatever DPT called it).
If so, disable it.
At the same time, if I remove the Adaptec
RAID and plug the cable into a plain U320 HBA, the culprit disk drive
is detected properly as U320, no matter which bay I put it into, and
runs just fine under Linux (~130 MBps sequential read/write) without
a hint of SCSI-related problems.
My idea is, that this is not likely an electric/impedance problem on
the SCSI bus.
You could check by removing all other drives.
Rather, it seems to be an incompatibility between the firmwares of
the two devices.
Neither Adaptec nor Seagate have an e-mail contact to their tech
support on their web, and their FAQ's are not much use.
Adaptec does have a slightly fresher firmware (from sometime in 2001)
on its web,
but it's labeled as ASR-2110 (not 3210),
You can probably ignore that. It appears universal.
Internally it mentions
3110F 3410S 3210S and 2110S
ADAPTEC 3000S
ADAPTEC 2100S
ADAPTEC 2400A
ADAPTEC 3210S
ADAPTEC 2005S
It also anounces as: "Adaptec RAID Setup Utility V1.12/66I 9/4/2001"
No model fixing.
and there's no "release note" about the bugs it fixes.
I'm somewhat reluctant to flash that.
It's found under 3210s support, you should be save.
I don't like this sort of "blind flashing"
If that's even possible:
"The selected file %s is not a %s flash image for this type of adapter"
and this is not a pressing issue at the moment...
I know the ASR-3210 is nowadays hopelessly out of date, hardly
supported anymore.
What support would it need now that it didn't when it was younger?
The obvious solution is to use a 2120 or a 2130 for.
the single bus that I have :-) But still, any ideas are welcome.
Frank Rysanek
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