I can report io errors with Chenbro based LSI SASx36 IC based
expanders tested with 111b/121/128a/129. The HBA was LSI 1068 based.
If I bypass expander by adding more HBA controllers, mpt does not have
io errors.
-nola
On Dec 8, 2009, at 6:48 AM, Bruno Sousa wrote:
Hi James,
Thank you for your feedback, and i will send the prtconf -v output for
your email.
I also have another system where i can test something if that's the
case, and if you need extra information or even access to the system,
please let me know it.
Thank you,
Bruno
James C. McPherson wrote:
Bruno Sousa wrote:
Hi all,
During this problem i did a power-off/power-on in the server and the
bus reset/scsi timeout issue persisted. After that i decided to
poweroff/power on the jbod array, and after that everything became
normal.
No scsi timeouts, normal performance, everything is okay now.
With this is it safe to assume that the problem may becaused by the
SAS expander (one single LSI SASX36 Expander Chip) used by the
supermicro jbod chassis, and not by the hba/mpt driver?
Hi Bruno,
that is indeed what I, personally, suspect is the case. Tracking
that down and conclusively proving so is, however, another thing
entirely.
Could you send the output from prtconf -v for your host please,
so that we can have a look at the vital information for the
enclosure services and SMP nodes that the SAS Expander presents/
thankyou,
James C. McPherson
--
Senior Kernel Software Engineer, Solaris
Sun Microsystems
http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog
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