HP Library and Tape Tools - Manual (Page 75)

Table 3 Media Analysis test details (continued)
Media Analysis test Details/Media specific test
NOTE: The Media Analysis test reads data from the media and calculates the error
rate. If the error rate exceeds the maximum allowable threshold, the test will require
a cleaning cartridge and a second tape to determine if the problem is with the drive
or the tape. Test is non-destructive and will not overwrite any data on the media.
For instructions on how to perform this test, see “Running tests and device-specific
utilities” (page 29) or “Running the tests (CSI)” (page 50) .
Run this test when you want to verify the integrity of the data on a particular piece of
media, as read by a particular drive. When to run
< 5 minutes, using default test options. Duration
Options •
Test Time Limit—Specify the time limit in minutes. Enter 0 for no time limit.
• Data Limit Type—Specify one of the following options to limit the amount of data
read in each phase:
◦
Time—Limits the amount of data read based on the time specified in Data Time
Limit.
◦
Size—Limits the amount of data read based on the size specified in Data Size
Limit.
◦
Whole tape—Limits the amount of data read based on the size of the tape.
•
Amount of data read in each phase—Specify the size limit in megabytes of data
to be read in each phase.
• Time allowed for each data test phase—Specify the time limit, in minutes, for each
phase of the test.
•
Transfer Size Limit—Specify the maximum data transfer limit, in kilobytes, per
command.
The Media Analysis test reads data from the media and calculates the error rate. If
the error rate exceeds the maximum allowable threshold, the test will require a cleaning
cartridge and a second tape to determine if the problem is with the drive or the tape. Other notes
Test is non-destructive and will not overwrite any data on the media.
This test is available for all tape drives except for LTO. For LTO tape drives, see “LTO
Media Assessment Full Tape test” (page 75) .
Available for
LTO Media Assessment Full Tape test
Table 4 LTO Media Assessment Full Tape test details
LTO Media Assessment Full Tape test Details/Media specific test
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 Description
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.
CAUTION: This test is destructive if you set the Allow Overwrite test option as TRUE.
The test overwrites the data on the media present in your device.
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. When to run
Approximately 20 minutes using the default test options, depending on the drive type. Duration
Diagnostic tests 75