What's the latest firmware for ULT3580-HH4 (LTO4 HH SAS direct connect) and where to get them?

Hi All

Any body know where I can grab the latest firmware for these drives?

We experiencing slight issues with cartridge read/write status once in a while and not sure if the drive firmware are latest and can be updated, or even if they might help to read/write media better?

 

Current status of the drives

Drive Identity 1 (LUN)
Vendor ID IBM
Product ID ULT3580-HH4
Serial Number -------855
Firmware Revision C7QJ
...
Interface Type SAS

 

Drive Identity 2
Vendor ID IBM
Product ID ULT3580-HH4
Serial Number -------447
Firmware Revision C7QJ

...
Interface Type SAS