Initialization of the Error Recording Area (ERDS) in VM

The following table describes the ERDS initialization:

TO	DESCRIPTION
Initialize the ERDS	Use the CP routines that format each of the recording cylinders and set up the logical pages to receive error records. Each recording cylinder has a header followed by the space for error records.
Reinitialize the error recording area	Issue the CPEREPXA EXEC specifying CLEAR as the only operand. CLEAR creates a new header and re-formats each cylinder. For details about CLEAR see Unique CPEREPXA Operands.

The following table decribes the VM SP ERDS when it is on a count-key-data device or a fixed-block-architecture device:

DEVICE ARCHITECTURE	DESCRIPTION
Count-key-data device	It consists of at least two adjacent cylinders allocated on the system residence pack. The VM ESP RDS are referred to as the "error recording cylinders."
Fixed-block-architecture device	It consists of any number of adjacent pages assigned on the system residence volume. The VM SP error recording routines see the ERDS as a series of logical pages.