zSeries LCU properties (real-time only)

Use this page to view the parameters for the selected LCU.

Menu path

Real-time manager > Configure storage > zSeries > LCUs > Select an LCU > Select Action: Properties > Go

Fields

SSID

The next subsystem identifier (SSID) that is available in the order of creation. If you have selected more than one LCU in the Select from available LCUs page, the SSIDs are sequentially incremented by 1 starting from this entry.

LCU type

The supported count-key-data base control unit type:

3990 Mod 3
3990 Mod 3 for TPF
3390 Mod 6

Concurrent copy session timeout

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.

Critical mode enabled

Indicates whether the critical mode option is enabled for the LCU. Critical mode controls the behavior of the remote mirror and copy pairs that have a primary logical device on this logical subsystem (LSS) in an LSS consistency group. If enabled, 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.