Specifies the controlling subsystem and the library. (QCTLSBSD)
Controlling subsystem/library, also known as QCTLSBSD, is a member of the restart category of i5/OS™ system values. You can use this system value to specify the controlling subsystem and the library. To learn more, keep reading.
| Quick reference | |
|---|---|
| Location | In iSeries™ Navigator, select your system, |
| Special authority | None |
| Default value | Controlling subsystem - QBASE; Library - QSYS |
| Changes take effect | At the next restart of the system |
| Lockable | No |
You may specify the first subsystem to start after you restart the system. One subsystem must be active while the system is running. This is the controlling subsystem. Other subsystems can be started and stopped.
If this subsystem description cannot be used (for example, it is damaged), the backup subsystem description QSYSSBSD in the library QSYS can be used. A subsystem description specified as the controlling subsystem cannot be deleted or renamed once the system is fully operational.
The subsystem description must exist in the system disk pool (also known as auxiliary storage pool) or in a basic user disk.
To learn more, go to the restart system values overview topic. If you are looking for a specific system value or category of system values, try using the i5/OS system value finder.