HP StorageWorks vs80 User Manual page 57

Table 4
Troubleshooting Table
Problem
Cannot write to or read from
tape.
Chapter 4
Make sure that the cartridge is write enabled (move the write-
protect switch to the enabled position).
Make sure that the cartridge is a DLTtapeIV that has not been
written using an incompatible format. The drive can read, but not
write a DLT 4000 formatted tape.
Make sure that the cartridge has not been exposed to harsh
environmental or electrical conditions and is not physically
damaged in any way.
Many backup applications do not read or write to cartridges that
were created using a different backup application. In this case,
you may have to perform an erase, format, or label operation on
the cartridge.
Make sure you understand any data protection or overwrite
protection schemes that your backup application may be using,
which could prevent you from writing to a given cartridge.
Retry the operation with a different, known good tape.
Clean the tape drive. See
Solution
Cleaning the Tape Drive
Diagnostics and Troubleshooting
on page 36.
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