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Persistent Errors
When errors occur that prevent tape operation, they are reported persistently until
the problem is cleared. For medium-related errors (usually reported with a Sense
Key of 3), the error is reported until the cartridge is successfully unloaded. For
hardware-related errors (usually reported with a Sense Key of 4), the error is
reported until the drive successfully performs a power-on self test. These persistent
errors are only reported on those commands that are eligible for deferred Check
Condition reporting (see Table 1 on page 5). The error may or may not be reported
as Deferred.
88 Ultrium Internal Tape Drive and 3580 Ultrium Tape Drive: SCSI Reference