v If Failure appears in the Progress Window, the diagnostics were not able to
be performed. Follow the instructions listed in the Progress Window to
resolve any issues that occurred during the operation.
Using Periodic Key Path Diagnostics
You can enable the library to automatically perform Key Path Diagnostics at
selected intervals. During each interval, the library tests every configured key
server. The default test interval is four hours. The library generates a RAS ticket if
there are problems.
Periodic Key Path Diagnostics is disabled by default. It is recommended that you
leave Periodic Key Path Diagnostics disabled, unless network interruptions are a
common cause of encryption failures at your site.
Attention: Running Periodic Key Path Diagnostics may cause an increase in RAS
tickets if tests are skipped due to tape drives being unavailable for a configurable
number of consecutive test intervals. To reduce the occurrences of RAS tickets, you
can specify the number of consecutive test intervals required to generate a RAS
ticket to a higher number, or you can set the library to never generate a RAS ticket
for missed test intervals.
To enable Periodic Key Path Diagnostics:
1. From the web user interface, select Service Library → Key Path Diagnostics.
2. Select Enable Periodic Key Path Diagnostics.
3. Select a test interval from the Test Interval list.
4. Check Enable Test Delay Reporting if you want the library to generate a RAS
ticket to inform you that the test could not be performed within the specified
number of test intervals.
v If you check Enable Test Delay Reporting,fromtheTest Delay Reporting
Threshold list, select the number of consecutive, missed test intervals
required before the library generates a RAS ticket. You can select any value
from 1 to 24. The default threshold is 3.
v If you do not check Enable Test Delay Reporting, the library will never
generate a RAS ticket, no matter how many tests are missed.
Enabling Drive Logical Serial Number Addressing
From the Operator Panel: Tools → System Settings → Logical SN
Addressing
Administrative users can enable or disable tape driver logical serial number
addressing from the Operator Panel only. The default setting is Disabled.
Logical serial number addressing allows the library to assign logical serial numbers
to all tape drives in the library. Specifically, the library assigns a logical serial
number to a tape drive in a specific location, not the serial number of the
particular tape drive. If a tape drive is replaced by another tape drive in the same
library location, the logical serial number remains the same. From the host
application's perspective, the replacement tape drive is the same as the original. By
default, logical serial number addressing is disabled.
Chapter 7. Service Procedures 7-15
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