dbcheck是Rational ClearCase所使用的Raima数据库的一个工具，位于etc/utils/下，它是一个纯粹的数据库工具，可以独立于ClearCase运行，也就可以在任何没装CC的机器上运行，只要上面有Raima数据库的7个文件： vob_db.k0*（key file）和vob_db.d0(data file，数据文件)。实际上，它所检查的也是这7个文件。

dbcheck的语法如下：

db_VISTA Version 3.20
Database Consistency Check Utility
Copyright (C) 1985-1990 Raima Corporation, All Rights Reserved
usage:   dbcheck [-options] dbname [dbfile(s)]
options: [-s] [-k] [-dk] [-kd] [-a] [-ts] [-r#] [-p#] [-f#] [-t] [-c]

  -s  = Perform. complete set consistency check
  -k  = Perform. key file structure consistency check
  -dk = Perform. key access consistency check from data files
  -kd = Perform. key data consistency check from key files
  -ts = Perform. time stamp checks for records and sets
  -a  = Does -s -dk -kd -ts
  -r# = Report every # percent to stderr
  -p# = Number of pages for vista to allocate to its page cache
  -f# = Number of open files vista is allowed to have
  -t  = Print a traceback of the b-tree at the first sign of disorder
  -c  = Print counts of objects scanned in the check

运行dbcheck需要vob owner或系统管理员权限，并且需要lock vob（或者lock后把db拷贝到另一个目录，这样可以减少lock时间）。在运行时，cd到db所在的目录，下面是各个平台上的例子：

windows: \etc\utils\dbcheck -r1 -a -k -p32767 vob_db > c:\dbcheck.txt 2>&1

Unix:/etc/utils/dbcheck -r1 -a -k -p32767 vob_db >/tmp/dbcheck.txt 2>&1

(csh下:/etc/utils/dbcheck -r1 -a -k -p32767 vob_db >& /tmp/dbcheck.txt )

注：vob_db不是缩写或者指代，需要必须按这个写