Connectivity test, Data compression test, Connectivity test data compression test – HP StoreEver TapeAssure Software User Manual
Page 107
Connectivity test
Description
Writes data to the internal buffers in your product to verify that the
physical connection between your host and the storage device is
operational. No media is required.
NOTE:
For instructions on how to perform this test, see
or
Running the tests (CSI) (page 73)
Command line syntax
The Connectivity test is available from the command line. For more
information, see
Test name: Connectivity Test
Options:
•
Looping Options
— Specify Count based loop or Time
based loop(min)
. In either case, the actual value is entered
separately using the Looping value parameter.
For example, to set a time-based loop of 10 minutes:
testopt=”Looping Options:Time based loop(min)”
testopt=”Looping value:10”
•
Looping value—Specify an integer greater than zero.
For example, to set a count-based loop to iterate five times:
testopt=”Looping Options:Count based loop”
testopt=”Looping value:5”
NOTE:
If no options are specified, by default L&TT runs the test
with looping options set to Count based loop with a looping
value of 1.
When to run
Run this test when there is a question about the integrity of the bus
connection from the device to the host computer.
Average duration
< 1 minute
Other notes
Test will not overwrite any data on media present in the drive.
Available for
AIT, DDS, DLT, LTO, VS80/VS160, MO, STK 9840 drives, and
MSL libraries
Data Compression test
CAUTION:
This test is destructive and will overwrite data on the media that is present in your
product.
Description
Tests the hardware compression capability of your tape drive. The test
writes a data pattern of known compressibility to tape. The test then
rewinds the tape and reads the file just written. The read and write
hardware compression ratios are calculated to ascertain that the
hardware compression is working. The compression ratios are displayed
and should be approximately 2:1. Anything less than 2:1 means that
hardware compression is not working. This test is useful if tape capacity
or hardware compression is in doubt.
NOTE:
For instructions on how to perform this test, see
or
Running the tests (CSI) (page 73)
.
Diagnostic tests 107