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SCSI CAM Error

Maner
Occasional Advisor

SCSI CAM Error

We have 3 member MC cluster, suddently all 3 went down. I have tried to reconfigure the servers and setup looks like below.


We have 3 * DS20E having NCR53C895 UW SCSI controller which is connected to 70-33067-05 -Digital 2x68-pin Personality Controller Module on DS-BA356-KF Storage box connected thru BN21W-OB cable.

we used three Y cable to form three member cluster; looks like


Y |-------> DS-BAS356-KF storage box
server 1. ----|
|-------
| [bn21W-ob]
Y |-------
Server 2. ----|
|-------
|
Y |-------
Server 3. ----|
|-------* [terminator]


Unfotunately we are getting following error whiel executing test bootstrap command or tried to install the OS on disk. But the servers are identified the DISKS [ RZ1DD-VW/RZ1CB-VW] which are all connected on BA356-KF box.


SCSI 0: SCSI bus was reset
CAM LOGGER: SCSI evert pack
CAM LOGGER: SCSI bus 0
itpsa SCSI HBA
SCSI bus was reset


SCSI0: DIP intr, istat=0*9 dstat=0*81
CAM LOGGER: SCSI evert pack
CAM LOGGER: SCSI bus 0
itpsa SCSI HBA
DIP intr, istat=0*9 dstat=0*81


SCSI: illegal instruction - DSP ******
SCSI0: can't find request for BA *****[proc SCSI Errors]
CAM LOGGER: SCSI evert pack
CAM LOGGER: SCSI bus 0
itpsa SCSI HBA
can't find request for BA *****[proc SCSI Errors]

Hope I have provided sufficient informations and let me know the reason beyond this.

Thanks in advance




3 REPLIES
David_854
Frequent Advisor

Re: SCSI CAM Error

Maner,
Check your logs and see what could be the source of the crash. To decode your crash information contact the HP Support Center.

David
Maner
Occasional Advisor

Re: SCSI CAM Error

not doesnot have sufficient informations since it was new installation. The console displayed the following message during fresh installation.

the error message was,
++++++++++++++++++++++++
SCSI0: Invalid phase after SCSI reselection on bus 0, resetting bus
Cam looger: SCSI event packet
Cam logger: bus 0
Invalid phase after SCSI reselection on bus 0, resetting bus

scsi0: SCSI bus was reset
Cam-logger: SCSI event packet
cam-logger: bus 0
itpsa scsi HBA
SCSI bus was reset

+++++++++++++++++++++++++++++

thanks in advance
Vladimir Fabecic
Honored Contributor

Re: SCSI CAM Error

That is SCSI configuration problem (adresing, cables, settings ...)
I am not sure if I understood your hardware configuration well (you can attach a file with more informations).
What is the SCSI addreses of each HBA in every machine?
In vino veritas, in VMS cluster