HP StoreEver TapeAssure Software - Manual (Page 123)

Options
Test time in minutes — The default is to read all the data on the
tape. If the tape is fully written, this parameter can be set to read for
only a set number of minutes.
•
•
Allow Suspect Drive — The default is that the test will exit as
incomplete if the drive has not passed the LTO Drive Assessment test
with greater than 95% margin within the last 30 power-on days. Also,
with the default setting, the test will exit as incomplete if the drive has
less than 80% of specified limits for load life, reposition life, or head
life. Setting the option to True will disable these checks.
•
Check WORM Integrity — The default is to check the integrity of
any WORM tape.
When to run Run this test when you want to verify that the data on the tape can be read
back with good margin — requiring minimal error correction or retries.
Other notes The test output includes the amount of data read, both native and that of the
host. Read quality is based on analysis of log data from reading the tape
during the test. Average read transfer rate is also based on reading the tape
during the test, and refers to the average native data read per second.
The test will pass if it completes with no errors and has sufficient read quality.
Available for LTO drives
LTO Media Assessment test
CAUTION: This test is destructive (if the Allow Overwrite test option is True) and will overwrite
data on the media that is present in your device.
Description The LTO Media Assessment test evaluates two aspects of the LTO media
— the data stored on the media and the tape cartridge itself. The default
is to perform a Read Only test, which analyzes the backup currently on
the LTO data cartridge to check whether the backup is fit for purpose
(FFP). The other test type is an Overwrite test, which overwrites the
existing data on the LTO data cartridge. The Overwrite test ensures that
the media can be successfully written to, which will check whether the
Media is FFP.
:
HP recommends using the LTO Data Assessment test, instead of the LTO
Media Assessment Read Only test. For information about the LTO Data
Assessment test, see
“LTO Data Assessment test” (page 122) .
If the Read Only (Backup Assessment) test fails, the backup needs to be
run again, but you should run the Overwrite test first to check that the
media is suitable to continue using for Backup operations.
If the Overwrite (Media Assessment) test fails, the media should be retired
and no longer used for Backup operations (i.e. it is no longer FFP). The
test makes no attempt to determine the reason for the problem with the
media; it is intended only to determine whether it is FFP.
The test also does a passive analysis of the tape history. In this part of
the test, the LTO Cartridge Memory is analyzed looking for signs of
health and usage problems. The historical information-based status of
the tape is reported at the end of the test.
Diagnostic tests 123