Hi,

I'm seeing these tape drive errors. Please advise where do I start from. Kindly guide me through. Thanks in advance.

# uname -a
Linux beldee90 2.6.32-431.20.5.el6.x86_64 #1 SMP Wed Jul 16 05:26:53 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux



Mar 29 18:35:07 BELDEE90 kernel: st5: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st5: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st5: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st6: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st6: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st6: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st6: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st7: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st7: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st7: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st7: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st9: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st9: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st9: Error 18 (driver bt 0x0, host bt 0x0).
Mar 29 18:35:07 BELDEE90 kernel: st9: Error 18 (driver bt 0x0, host bt 0x0).

You have a modified kernel and it's throwing errors... I'd start by either looking at how it's modified, going to the manufacturer/maker of the kernel who has the documentation and can explain the error or installing a stock kernel.