Re: SCSI adapter failure on SANs

Andrew,

We've been getting what looks like corrupted IO requests in our Sun
environment as well.  Here are the components:

TSM 3.7.3.7
JNI FC64-1063 HBA
Connectrix (ED-5000) Switch
SAN DG 2108 G07
3590E (xl cart support)

Driver levels:
4.0.3.5 (IBMtape)
4.1.5.0 (lmcpd)
13.3.5 (HBA firmware)
2.4.1.EMC (JNI)
3.40.16 (SAN DG)

The OP errors we get include: READ, WRITE, LOCATE, SETPARM-6, LOADDISPLAY.
We have never had an 8302 listed as "adapter failure" however.

We're trying to determine where the problem is, right at the moment.  I
have no answers at this time.  I do have frustration.  Look at the xref at
tivoli.com:

http://www.tivoli.com/support/storage_mgr/san/solution_device.html

It looks like the E7000 to 2400 is fine.  But they have only validated the AIT 
on NT.  Reading closer you should also call and
determine if they stuck with FC-AL rather than fabric (since you have a 2400).  
None of our deployment will be with FC-AL
and it's wearing on my patience for IBM to begin supported fabric environments. 
 If they expect your connect to be
E7000->2400->crossroads but have the crossroads in loop mode and setting the 
port of the Brocade as loop, you should
do that.  So far in our fabric environment, not much has worked consistently 
but we cannot change to loop mode.  Besides
being a limited topology, the ED-5000 does not support it.

Hope that helps.

David Hendrix




Andrew Webster <andrew-m.webster AT DB DOT COM>@VM.MARIST.EDU> on 08/13/2000
12:11:41 AM

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cc:

Subject:  SCSI adapter failure on SANs


Hi There,

     I keep getting SCSI Adapter failure errors on our new SAN. The
environment is TSM 3.7.3.7 on Solaris 2.6, Emulex 7000E HBA, Brocade 2400
Switch, ADC 250R Router (really Crossroads), Scalar 1000 library (4
modules) and AIT-2 tape drives.

     Has anyone had similiar issues? Do people get I/O errros on SAN
frequently, occasionally, hard ever, none at all?

     Any advice welcome.

     Also, be interested in hearing from anyone running TSM 3.7 on Solaris
in a SAN environment. Please responds, I'm on a tight deadline here.

From activity log:-

08/13/2000 13:53:02  ANR8302E I/O error on drive DRIVE12 (/dev/rmt/12mt)
                      (OP=READ, CC=205, KEY=FF, ASC=FF, ASCQ=FF,
                      SENSE=**NONE**, Description=SCSI adapter failure).
Refer
                      to Appendix B in the 'Messages' manual for
recommended
                      action.
08/13/2000 13:53:02  ANR8302E I/O error on drive DRIVE11 (/dev/rmt/11mt)
                      (OP=WRITE, CC=205, KEY=FF, ASC=FF, ASCQ=FF,
                      SENSE=**NONE**, Description=SCSI adapter failure).
Refer
                      to Appendix B in the 'Messages' manual for
recommended
                      action.


Regards

--
Andrew Webster
Andrew Webster
PC, NetApp Filer, TSM
Sanno Move Project
Deutsche Real Estate Consulting Ltd. - Tokyo
Internal (but outside Tokyo): 88 408-7542
Tel. +81-3-5156-7542
Fax. +81-3--5156-4811
Mobile: 0907 184 8958

Andrew-M.Webster AT db DOT com