DSS FC write problems

[hughesmikea]

gentlemen,

Server is a brand new PowerEdge 2970 with a PERC 5/i RAID controller and 4GB RAM
(6) 1TB SAS Drives in a RAID 5 with writeback cache enabled (default)

Just created an iSCSI volume and attached my PC to it. I copied a 2.5GB file across smoothly.

When copying acrosss FC, the copy has an initial burst, then pauses for a while, then bursts again, then repeats until complete.

mike

[To-M]

Forget to ask or maybe you did test this already but what about directly connecting w/o the switch. I know that the Datacore you didn't have to do this but just a thought.

[symm]

Hi hughesmikea

can you manually set the I/O Gaurd

[hughesmikea]

Good Morning,

OK, I went port to port from Xen to DSS and it worked fine. Then I wen back through the switch and it is NOW WORKING. No changes were made to the FC HBA's or switch.

Any thoughts on how this could be??

mike

[Robotbeat]

Perhaps it was a problem with the auto-setup inside the switch?

[To-M]

Maybe set the ports to Point to Point first the other, not sure as I am light on the FC switch end as I dont have one.

[symm]

Hi hughesmikea

Your I/O Gaurd is is that still set to Auto, if so please try manual setting.
Someone told me before that fibre channel switch settings must be manualy set.
and do not leave any set to auto.