Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
USVOL
Control Block Contents
USVOL DSECT
Cross Reference (Contains links to field and bit definitions)
USVOL Prolog
Name : HCPUSVOL Description: User volume descriptor DSECT : USVOL Function : The USVOL area is used to describe the user volume list, the user volume include list and the user volume exclude list. Located by : SYSUVOL, SYSIVOL, and SYSXVOL in SYSCM Created by : HCPSYS, HCPZPQ Deleted by : no one
USVOL Control Block Content
USVOL DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure USVOL User volume descriptor 0000 0 Address 4 USVNEXT Pointer to next chunk or store 0004 4 Signed 4 USVCOUNT Count of volsers in this chunk 00000008 USVHDR *-USVOL Length of header 00000001 USVHDRD (*-USVOL+7)/8 Length of header in dwords 0008 8 Character 6 USVOLSER First volser in chunk
USVOL Storage Layout
*** USVOL - User volume descriptor * * +---------------------------+---------------------------+ * 0 | USVNEXT | USVCOUNT | * +---------------------------+-------------+-------------+ * 8 | USVOLSER | E * +-----------------------------------------+ * *** USVOL - User volume descriptor
USVOL Cross Reference
Symbol Dspl Value -------------- ---- ----- USVCOUNT 0004 USVHDR 0004 00000008 USVHDRD 0004 00000001 USVNEXT 0000 USVOLSER 0008
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