Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
NSSBK
Control Block Contents
NSSBK DSECT
Cross Reference (Contains links to field and bit definitions)
NSSBK Prolog
NAME : HCPNSSBK DESCRIPTION: SAVESEG/SAVESYS parameter control block DSECT : NSSBK FUNCTION : The HCPNSSBK is a parameter area used for SAVESEG/SAVESYS. LOCATED BY : None CREATED BY : HCPNSS DELETED BY : HCPNSS RELOCATION CONSIDERATIONS : None
NSSBK Control Block Content
NSSBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure NSSBK SAVESEG/SAVESYS parameter control block 0000 0 Bitstring 1 NSSWRKFG Work flag .... ...1 NSSAVSEG X'01' NSSAVSEG Indicates a SAVESEG command .... ..1. NSSAVSYS X'02' NSSAVSYS Indicates a SAVESYS command .... .1.. NSSVSNTQ X'04' NSSVSNTQ Indicates that a SNTBK is placed on Saveseg/Savesys SNTBK queue .... 1... NSSERRCL X'08' NSSERRCL Indicates that an error was detected when closing the SDF ...1 .... NSSDFOPN X'10' NSSDFOPN Indicates the SDF found by HCPSDFSC is open ..1. .... NSSNOTFD X'20' NSSNOTFD Indicates that the system specified in the SAVESYS cmd was not found 0001 1 Bitstring 1 NSSTATFG Status flag 1... .... NSSSSPOR X'80' NSSSSPOR Indicates that the segment space's SDF was found opened for read .1.. .... NSSSSPOP X'40' NSSSSPOP Indicates that the segment space's SDF was found opened 0002 2 Bitstring 1 NSSLCKFG *NSS SDF queue lock status 1... .... NSSSDFEX X'80' NSSSDFEX Indicates that the *NSS SDF queue lock is held exclusively ..1. .... NSSSDFNO X'20' NSSSDFNO Indicates that the *NSS SDF queue lock is not held 0003 3 Bitstring 1 * Reserved for IBM furture usage 00000001 NSSBKDSZ (*-NSSBK+7)/8 NSSBK block size in DW's 00000004 NSSBKBSZ (*-NSSBK) NSSBK block size in bytes
NSSBK Storage Layout
*** NSSBK - SAVESEG/SAVESYS parameter control block * * +------+------+------+------+ * 0 |:WRKFG|:TATFG|:LCKFG|//////| 4 * +------+------+------+------+ * *** NSSBK - SAVESEG/SAVESYS parameter control block
NSSBK Cross Reference
Symbol Dspl Value -------------- ---- ----- NSSAVSEG 0000 01 NSSAVSYS 0000 02 NSSBKBSZ 0003 00000004 NSSBKDSZ 0003 00000001 NSSDFOPN 0000 10 NSSERRCL 0000 08 NSSLCKFG 0002 NSSNOTFD 0000 20 NSSSDFEX 0002 80 NSSSDFNO 0002 20 NSSSSPOP 0001 40 NSSSSPOR 0001 80 NSSTATFG 0001 NSSVSNTQ 0000 04 NSSWRKFG 0000
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