On Mon, Jan 12, 2009 at 2:55 PM, Walter den Besten
<w.denbesten AT nimbuzz DOT com> wrote:
> Running the dd test right now.
> Only domain info in dmesg is following:
> [ 25.290263] scsi 0:0:3:0: Sequential-Access HP Ultrium 2-SCSI
> S53D PQ: 0 ANSI: 3
> [ 25.290263] target0:0:3: Beginning Domain Validation
> [ 25.290263] target0:0:3: wide asynchronous
> [ 25.290263] target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
> offset 64)
> [ 25.549090] target0:0:3: Ending Domain Validation
> Could you tell me how I can check whether scsi card is running in correct
> mode?
Your result is correct for U160 SCSI. Ask this because my server does
the following after boot
[ 274.856902] target8:0:3: Beginning Domain Validation
[ 274.857759] target8:0:3: asynchronous
[ 274.858221] target8:0:3: Wide Transfers Fail
[ 274.859208] target8:0:3: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
[ 274.858221] target8:0:3: Domain Validation detected failure, dropping back
[ 274.859208] target8:0:3: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 31)
[ 274.858221] target8:0:3: Domain Validation detected failure, dropping back
[ 274.859306] target8:0:3: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 31)
[ 274.859208] target8:0:3: Domain Validation detected failure, dropping back
[ 274.859791] target8:0:3: FAST-5 SCSI 5.0 MB/s ST (200 ns, offset 31)
[ 274.859791] target8:0:3: Domain Validation detected failure, dropping back
[ 274.860411] target8:0:3: asynchronous
[ 274.860411] target8:0:3: Domain Validation detected failure, dropping back
[ 274.861039] target8:0:3: asynchronous
[ 274.861039] target8:0:3: Domain Validation detected failure, dropping back
[ 274.861665] target8:0:3: asynchronous
[ 274.861665] target8:0:3: Domain Validation detected failure, dropping back
[ 274.862033] target8:0:3: Domain Validation Failure, dropping back
to Asynchronous
[ 274.862040] target8:0:3: Domain Validation skipping write tests
[ 274.862044] target8:0:3: Ending Domain Validation
And that means the tape drive will operate at 5MB/s mode max. To fix
this I am forced to
modprobe -r myscsicarddriver
modprobe myscsicarddriver
after the system has fully booted and then all is well:
[ 275.166333] target8:0:4: Beginning Domain Validation
[ 275.166314] target8:0:4: asynchronous
[ 275.167750] target8:0:4: wide asynchronous
[ 275.167750] target8:0:4: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
offset 62)
[ 275.169173] target8:0:4: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
offset 62)
[ 275.170789] target8:0:4: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
offset 62)
[ 275.172219] target8:0:4: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
offset 62)
[ 275.173880] target8:0:4: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns,
offset 62)
[ 275.174932] target8:0:4: Domain Validation skipping write tests
[ 275.174937] target8:0:4: Ending Domain Validation
John
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