PowerVault TL4000 Drive Warn or Crit Tape Alert flag

Hello,

we have the following alerts:
--------------------------------------------------
Warning: Warn Drive or Crit Tape Alert flag
Event Code: 0x84 - tape alert
Element number: 0x0D, 13
Drive number: 0x01, 1
Flag Alert Tape: 0x03, 3
This message was generated automatically from
IBM 3573-TL
--------------------------------------------------
Warning: Warn Drive or Crit Tape Alert flag
Event Code: 0x84 - tape alert
Element number: 0x0D, 13
Drive number: 0x01, 1
Flag Alert Tape: 0x04, 4
This message was generated automatically from
IBM 3573-TL
--------------------------------------------------
Warning: Warn Drive or Crit Tape Alert flag
Event Code: 0x84 - tape alert
Element number: 0x0D, 13
Drive number: 0x01, 1
Flag Alert Tape: 0x27, 39
This message was generated automatically from
IBM 3573-TL
--------------------------------------------------

Any ideas would be highly appreciated. Thanks in advance.
Regards.