HP StoreEver TapeAssure Software User Manual

Page 42

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Options

HP recommends using the default options, which will perform a Read
Only (Backup Assessment) test and attempt to read two wraps of data
from the tape. Use the Allow Overwrite and Amount of Media
to Test

options to modify the default behavior of the test.

Allow Overwrite

(default False) — To run the Read Only

(Backup Assessment) test, set the Allow Overwrite option to
False, or leave it unset. To run the Overwrite (Media Assessment)
test, set the Allow Overwrite option to True.

Amount of Media to Test

— The actual amount of data read

varies by LTO drive/tape generation, but is enough for a valid
Read Margin calculation to be performed. Unless EOD (End of
Data) is reached during the read of the default amount of data, the
test will be unable to report that the Backup is FFP, but it will be a
very good indication of the health of the backup. To fully test the
Backup fitness, set the Amount of Media to Test option to
Entire Tape, which will ensure that the data is read from the tape
until EOD is reached.

The other test options allow the test to be run outside of the standard
operation parameters, which is not recommended:

Enable passive test

(default True) — When this option is set

to True, the passive stage of the test is run. When this option is set
to False, the passive stage of the test is not run. There is not benefit
to disabling the passive stage of the test because it runs very quickly
and gives useful feedback on the history of the tape.

Check WORM integrity

(default True) — When this option is

set to True, the Read Only test is run on a WORM cartridge, which
will check the integrity of the WORM media and that the WORM
cartridge has not been tampered with. This test does not allow
writing to a WORM cartridge.

Ignore cleaning requests

(default False) — If the tape drive

to be tested is requesting cleaning, the drive should be cleaned
before running the test. However, if a cleaning cartridge is not
available, you can bypass this check by setting this option to True.
In that case, the test will report that non-standard test options were
used so the results of the test cannot be guaranteed.

When to run

Run this test with the Allow Overwrite option set to True when you want
to check whether a backup is fit for purpose. Run this test with the Allow
Overwrite option set to False when you want to check that a tape
cartridge is fit for purpose.

Average duration

Approximately 20 minutes using the default test options, depending on
the drive type.

Other notes

Test will overwrite all data on the media if the Allow Overwrite option
is True.

If the drive to be tested in part of an autoloader or library, the autoloader
or library should be in random mode prior to running the test.

The test will not run with a tape that has been partitioned.

Available for

LTO drives only

42

Tests and utilities

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