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v Licensed Internal Code log - For details, see “Licensed Internal Code (LIC) log”
on page 29.
v Main storage dump manager - For details, see “Main storage dump manager” on
page 30.
v Hardware service manager - For details, see Chapter 2, “Hardware Service
Manager” on page 45.
Work with active service tools
Select this option from the System Service Tools display. It lists active service tools
and their status. You can start service tools and leave them active while you start
another service tool. Use this function to work with a service tool you left active or
to end an active service tool. The status of a service tool shows whether the service
tool is active or ending. For more information, see “Work with active service tools”
on page 24.
Work with disk units
Select this option from the System Service Tools display. It displays tools that can be
run for disk units. You can do the following:
v Display disk configuration
v Display checksum configuration
v Calculate checksum configuration
v Work with auxiliary storage pools (ASP) threshold
v Add units to ASPs
v Work with device parity protection
v Work with disk unit recovery
v Work with disk unit information
v Calculate mirroring capacity
This option is a subset of the functions available from dedicated service tools
(DST). The complete function is not available from SST in full paging environment.
For more information, see “Work with disk units” on page 13.
Work with diskette data recovery
Select this option from the System Service Tools display. It allows you to read data
from a diskette that contains cyclic redundancy check (CRC) errors. CRC errors
occur when the system finds data on a diskette that is not readable during a read
operation. Normally, when the system finds a CRC error, you cannot read the
diskette past the point of the failing sector. By using this option, you can read
diskettes that contain sectors with CRC errors.
The iSeries server can use diskettes for saving and restoring system objects. One or
more objects can be stored on a diskette. Whenever the system finds a diskette that
contains a bad sector during a read operation, the operation ends. A bad diskette
sector, which causes a CRC error, can result from failure in the diskette or from
wrong handling. The Work with diskette data recovery option allows you to read data
from a diskette, correct any failing sectors present on the diskette, then write the
new data to a new diskette.
Options:
v Alter diskette data
This option allows you to change the data in any sector on a diskette. For more
information, see “Alter diskette data” on page 285.
v Read data from diskette
284 Service Functions V5R2