vollogcnvt(8)vollogcnvt(8)NAMEvollogcnvt - Logical Storage Manager BCL-to-DRL logging conversion
/usr/sbin/vollogcnvt [-g diskgroup]
Limits the conversion of logging subdisks to volumes in the specified
The vollogcnvt utility is a migration tool for Logical Storage Manager
(LSM) administrators who are using the Block-Change Logging (BCL) fea‐
ture. 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,
vollogcnvt attempts the BCL-to-DRL conversion for all volumes across
all disk groups.
If logging cannot be re-enabled in the DRL scheme, a message is sent to
For volumes whose BCL subdisks will not work in the DRL scheme, logging
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
disabled. 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