Create zSeries LCU — Verification

Use this page to review a list of properties and basic capacity calculations that represent new logical control units (LCUs).

Menu path

Real-time manager or Simulated manager > Configure storage > zSeries > LCUs > Select Action: Create... > Go

Selected LCU(s): The quantity of LCUs that you have selected.
SSID: The subsystem identifier for the set of units that are attached to the FICON host image.
LCU type: The supported count-key-data base control unit type (3990 Mod 3, 3990 Mod 3 for TPF, or 3990 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.
z/OS Global Mirror Session timeout: The time (in seconds) that any logical device on the LCU is allowed to remain in an z/OS Global Mirror session with a "long busy" status. After the indicated time, the z/OS Global Mirror 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.