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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
FUBSECT
Cross Reference (Contains links to field and bit definitions)
FUBSECT Prolog
NAME : DMSFUB DESCRIPTION: File Space Usage Block DSECT : FUBSECT FUNCTION : Mapping of the CMS File Space Usage Block. The FUB contains file space usage information for a file space with open output files.
FUBSECT Control Block Content
FUBSECT DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure FUBSECT File Space Usage Block FILE SPACE USAGE BLOCK 0000 0 Dbl-Word 8 * (0) 0000 0 Character 3 FUBEYEC Eyecatcher to indicate a FUB 0003 3 Bitstring 1 FUBFLAG FUB FLAGS THE FOLLOWING ARE EQUATES FOR THE FUBFLAG FIELD 1... .... FUBPREAL X'80' This is a preallocated FUB .1.. .... FUBINUSE X'40' This FUB is currently in use ..1. .... FUBVALID X'20' The Server count of available blocks (FUBSFSAV) is valid 0004 4 Address 4 FUBPTR Next File Space Usage Block 0008 8 Signed 4 FUBFLDS (0) 0008 8 Character 8 FUBFPOOL File Pool name 0010 16 Character 8 FUBFSPAC File Space name 0018 24 Signed 4 FUBOPENF Number of files open for output in this file space 001C 28 Signed 4 FUBSFSAV Signed integer containing the number of 4K blocks the SFS Server believes are left in the file space. This value may be negative if the file space limit is exceeded. 0020 32 Signed 4 FUBCMSUS Signed integer containing the number of 4K blocks that CMS must subtract from FUBSFSAV to incorporate changes to open files: CMS writes to unallocated blocks in CMS cache, CMS writes following OPEN REPLACE when CMS blocks are logically deleted before SPS write. Value is positive if CMS uses blocks that Server does not know are used. Value is negative when CMS makes blocks available that Server does not know are available. 0024 36 Signed 4 * (3) Reserved 00000030 FUBLB *-FUBSECT Length of FUB block in bytes 00000006 FUBLD (FUBLB+7)/8 Length of FUB block in dwords 00000028 FUBFLDSL *-FUBFLDS Length of FUB fields to clear
FUBSECT Storage Layout
*** FUBSECT - File Space Usage Block * * +--------------------+------+---------------------------+ * 0 | FUBEYEC |:FLAG | FUBPTR | * +--------------------+------+---------------------------+ * 8 | FUBFPOOL | * +-------------------------------------------------------+ * 10 | FUBFSPAC | * +---------------------------+---------------------------+ * 18 | FUBOPENF | FUBSFSAV | * +---------------------------+---------------------------+ * 20 | FUBCMSUS |///////////////////////////| * +---------------------------+///////////////////////////| * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 30 * *** FUBSECT - File Space Usage Block
FUBSECT Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----FUBCMSUS 0020
FUBEYEC 0000
FUBFLAG 0003
FUBFLDS 0008
FUBFLDSL 0024 00000028
FUBFPOOL 0008
FUBFSPAC 0010
FUBINUSE 0003 40
FUBLB 0024 00000030
FUBLD 0024 00000006
FUBOPENF 0018
FUBPREAL 0003 80
FUBPTR 0004
FUBSFSAV 001C
FUBVALID 0003 20
Last updated on 12 Aug 1999 at 11:13:07 EDT.
Copyright IBM Corporation, 1990, 1999