Master block (_MstrBlk)

The _MstrBlk VST displays before-image and after-image information about the master block and other master block status.1

Field name Data type Description
_MstrBlk-AiBlksize INTEGER Number of bytes in an AI block
_MstrBlk-BiBlksize INTEGER Number of bytes in a BI block
_MstrBlk-BiOpen CHARACTER Date and time the BI file was last opened
_MstrBlk-BiPrev CHARACTER Previous value of _MstrBlk-biopen
_MstrBlk-BiState INTEGER Current state of BI file
_MstrBlk-Cfilnum INTEGER Highest file number currently defined in the database
_MstrBlk-Crdate CHARACTER Date and time of database creation
_MstrBlk-Dbstate INTEGER Current state of the database
_MstrBlk-Dbvers INTEGER Database version number
_MstrBlk-Fbdate CHARACTER Date and time of the last full backup
_MstrBlk-Hiwater INTEGER Database blocks high-water mark
_MstrBlk-Ibdate CHARACTER Date and time of most recent incremental backup
_MstrBlk-Ibseq INTEGER Sequence of last incremental backup
_MstrBlk-Integrity INTEGER Database integrity enabled flag

For more information, see Master block flags for troubleshooting damaged databases.
_MstrBlk-Lasttask INTEGER Last transaction ID
_MstrBlk-Oppdate CHARACTER Date and time of previous database open
_MstrBlk-Oprdate CHARACTER Date and time of most recent database open
_MstrBlk-Rlclsize INTEGER Current BI cluster size
_MstrBlk-Rltime CHARACTER Time since last before-image file truncate
_MstrBlk-Tainted INTEGER Database damaged flags

For more information, see Master block flags for troubleshooting damaged databases.
_MstrBlk-Timestamp CHARACTER Schema cache file time stamp
_MstrBlk-Totblks INT64 Number of blocks allocated to the database