Use this page to define the parameters for the specified LCUs.
Menu path
Fields
- SSID
- The subsystem identifier for the set of units that are attached to the
FICON host image. This is the next ID that is available in the order of creation.
You can change the default SSID by highlighting it and entering a new ID.
If you create multiple LCUs at the same time, the SSIDs are incremented.
- LCU type
- Select one of the supported count-key-data base control unit types:
- 3990 Mod 3
- 3990 Mod 3 for TPF
- 3390 Mod 6
- Concurrent copy session timeout
- Enter the time (in seconds) that a logical device on the LCU is allowed
to remain in a concurrent copy session with a "long busy" status. After the
indicated time, the concurrent copy session is suspended. This entry is important
if you are utilizing DS Copy Services.
- Critical mode enabled
- Check this box to control the behavior of the PPRC pairs that have a primary
logical device on this logical subsystem in an LSS consistency group. If you
select this option, write operations to the source remote mirror and copy
volume are prohibited if data cannot be copied to the target volume of the
volume pair.