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vollogcnvt(8)							vollogcnvt(8)


  vollogcnvt - Logical Storage Manager BCL-to-DRL logging conversion utility


  /usr/sbin/vollogcnvt [-g diskgroup]


  -g diskgroup
      Limits the conversion of logging subdisks	to volumes in the specified
      disk group.


  The vollogcnvt utility is a migration	tool for Logical Storage Manager
  (LSM)	administrators who are using the Block-Change Logging (BCL) feature.
  In the Version 5.0 release of	Tru64 UNIX, the	BCL feature of LSM was
  replaced with	the Dirty-Region Logging (DRL) feature.

  The vollogcnvt utility attempts to convert volumes with BCL enabled to
  volumes with DRL enabled. If called without specifying a disk	group, vol-
  logcnvt attempts the BCL-to-DRL conversion for all volumes across all	disk

  If logging cannot be re-enabled in the DRL scheme, a message is sent to the

  For volumes whose BCL	subdisks will not work in the DRL scheme, logging is

  Log subdisks that cannot be converted	to DRL are dissociated from their
  volumes only if at least one of the log subdisks for the volume is con-
  verted.  Otherwise, the configuration	does not change	and logging is dis-
  abled. Volumes that cannot be	converted, for example,	because	all their log
  subdisks are too small, will have logging disabled.

  At system startup, the vollogcnvt utility runs automatically and logs
  errors to binlog and sends mail to root. This	happens	at each	reboot until
  the DRL is manually converted	or when	logging	is disabled. If	the utility
  runs at startup or manually, a message is sent to the	console.

  For details and guidelines on	using DRL, refer to the	Logical	Storage
  Manager guide.


  Commands: binlogd(8)

  Other: volintro(8)