Sco Open Server 5.0.7 SCSI bus speed downshifted

[CarloF]

We have installed as usual a DL380 with SmartArray 6i and we get this message into syslog.

Jan 12 19:31:21 server_xx12 WARNING: ciss <slot 0> : SCSI bus speed downshifted, SCSI port 2

The system works but the performance of our HD are not the best.

Any solutions ?

 

[Hidsjer]

This message wasn't followed by a physical drive failure?
Maybe start the system with the Compaq smartstart cd and examine the disk by the ACU utility. This might give you some more information.

 

[motoslide]

Any change in SCSI cabling? I've seen this where I've installed a SCSI3 device on a SCSI3 controller, but had to use a 68pin to 80pin adapter. High speed SCSI must adhere to strict cabling specs. A TAPE drive (not likely on a RAID controller) could also cause this symptom. What is connected to your SCSI controller?

"Proof that there is intelligent life in Oregon. Well, Life anyway.

 

[CarloF]

no dlt or others tapes connected to this controller. Only HD.

 

[CarloF]

there are 4 hd 72GB 15k rpm

3 are used for RAID 5
1 it is a spare disk