UCS B-Series bare metal OS FC Issues with failover

[DAVE GENTON]

My customer is seeing loss of access to FC attached SAN on b-series blades that have windows and Red Hat installed bare metal, VMware are fine just these 2 OS's.  It happens when the 6100 fails over to the subordinate.  They say they reboot the servers 4-5 times before they are live on the fabric again as intended.  They have many UCS systems in many environments with differing versions of firmware and too many variables to list here, looking to see if anyone seen and rectified this, possible drivers for 2008r2 and RH ??? 

thx

dave

[David.Jarzynka]

Dave,

Proper fabric failover really pertains to the OS and how is deals with the storage platform paths. When UCS failsover the the fabric an MPIO driver on the OS must be tested and functional to achieve proper a connection status. When installing Windows or Linux and bare metal you will need to ensure that the correct MPIO driver is installed on the OS. This driver should be obtained from the storage admin in your enviroment and must be installed and tested for proper path failover prior ro any UCS failover testing. In the case of VMware, vSphere uses a native MPIO driver and works out of the box, Windows and Linux will require a MPIO driver to match this funtionalilty.

I hope this helps,

David