About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODALS
PrologControl Block Contents
Cross Reference
MRIODALS Prolog
DSECT NAME - IODALS FUNCTION - Map the Monitor Record for Domain 6, Record 10 LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRIODALS DESCRIPTIVE NAME - Monitor Event Record Domain 6 - I/O Domain Record 10 - Automated Tape Library Statistics DESCRIPTION - Statistics data of the 3495 Tape Library Dataserver, obtained from the tape controller with a Read Subsystem Data CCW in response to an unsolicited unit check with an ERA code of x'7A' in the sense. NOTES: - The statistics data in IODALS_DATA pertains only to the 3495 device and not to a tape unit or tape control unit. The mapping of these statistics is documented in the hardware reference manual for the 3494 Tape Library Dataserver. - In order to collect this record on a regular basis, the entire range of tape units under the control of the 3495 Dataserver should be enabled for event monitoring in the I/O domain. - IODALS_CALDATOF should always be used to locate the IODALS_DATA data area. Its value may change.
MRIODALS Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 24 IODALS Start of monitor record 0 0 Character 0 IODALS_MRHDR Record header. See MRRECHDR for details. 0 0 Character 20 MRHDR 0 0 Unsigned 2 MRHDRLEN record length in bytes 2 2 Unsigned 2 MRHDRZER field of zeros 4 4 Unsigned 1 MRHDRDM domain identifier 5 5 Unsigned 1 * 6 6 Unsigned 2 MRHDRRC record identifier 8 8 Character 8 MRHDRTOD Time at which this record was built. In time-of-day (TOD) clock format. See IBM System 370 XA Principle of Operation for explanation of format. 16 10 Character 4 * 20 14 Character 0 MRHDR_END End of header 20 14 Signed 2 IODALS_CALDATOF Byte offset, relative from the start of this record, to the IODALS_DATA library statistics area 22 16 Signed 2 IODALS_CALDATLN Length, in bytes, of the IODALS_DATA library statistics area 24 18 Character 0 IODALS_DATA Library Statistics data, as returned by the 3495 Control Unit. IODALS_CALDATOF should be used to get the correct location. IODALS_CALDATLN should be used to get the length.
MRIODALS Cross Reference
Hex Hex Name Offset Length Value IODALS 0 24 IODALS_CALDATLN 16 2 IODALS_CALDATOF 14 2 IODALS_DATA 18 0 IODALS_MRHDR 0 0 MRHDR 0 20 MRHDR_END 14 0 MRHDRDM 4 1 MRHDRLEN 0 2 MRHDRRC 6 2 MRHDRTOD 8 8 MRHDRZER 2 2
This information is based on z/VM V5R4.0.
Last updated on 5 Sep 2008 at 09:11:41.
Copyright IBM Corporation, 1990, 2008