02-21-2012 12:18 PM
Recently i have installed new HBA 8(Gb) to Linux server, and connected the storage directly to the server.( this is a test environment, we have switch but all ports are utlized).
In past i did the same and was able to access the storage, but know when i am doing this storage controller goes up/down rapidly till i remove fiber from server.
i think this is due to HBA is 8 Gb and storage is 4Gb.
is there a way to change the HBA speed to 4 Gb from linux (rhel 5.5)
02-21-2012 10:11 PM
By default, the setting of the HBA's speed should be at "Auto negotiate", hence, the adapter will detect and negotiate the storage array's speed accordingly. Did you install the Linux driver for the Brocade adapter?
Also, Brocade adapters support only P2P (Point-to-point) mode if the storage arrays support this mode. The next driver releases v220.127.116.11 will be supported FC-AL (Fibre Channel Abitrated Loop) which schedule to be released sometime in Summer of 2012.