Configuring MSDP data integrity checking behavior
NetBackup performs several data integrity checks. You can configure the behavior of the integrity checks. For cloud LSU, you can configure the behavior individually for different cloud LSU by the dsid value.
Two methods exist to configure MSDP data integrity checking behavior, as follows:
Run a command.
See “To configure data integrity checking behavior by using a command”.
Edit configuration file parameters.
See “To configure data integrity checking behavior by editing the configuration files”.
Warning:
Cohesity recommends that you do not disable the data integrity checking. If you do so, NetBackup cannot find and repair or report data corruption.
To configure data integrity checking behavior by using a command
To configure behavior, specify a value for each of the data integrity checks, as follows:
Data consistency checking. Use the following commands to configure behavior:
Enable
UNIX:
/usr/openv/pdde/pdcr/bin/pddecfg - a enabledataintegritycheck -d <dsid>Windows:
install_path\Veritas\pdde\pddecfg - a enabledataintegritycheck -d <dsid>Disable
UNIX:
/usr/openv/pdde/pdcr/bin/pddecfg - a disabledataintegritycheck -d <dsid>Windows:
install_path\Veritas\pdde\pddecfg - a disabledataintegritycheck -d <dsid>Get the status
UNIX:
/usr/openv/pdde/pdcr/bin/pddecfg - a getdataintegritycheck -d <dsid>Windows:
install_path\Veritas\pdde\pddecfg - a getdataintegritycheck -d <dsid>Note:
-d is cloud LSU dsid value and it is an optional parameter. Use /usr/openv/pdde/pdcr/bin/pddecfg -a listcloudlsu to get cloud LSU dsid value. When the dsid value is "0", local LSU is processed.
Cyclic redundancy checking. Use the following commands to configure behavior:
Enable
CRC does not run if queue processing is active or during disk read or write operations.
UNIX:
/usr/openv/pdde/pdcr/bin/crcontrol --crccheckonWindows:
install_path\Veritas\pdde\Crcontrol.exe --crccheckonDisable
UNIX:
/usr/openv/pdde/pdcr/bin/crcontrol --crccheckoffWindows:
install_path\Veritas\pdde\Crcontrol.exe --crccheckoffEnable fast checking
Fast check CRC mode begins the check from container 64 and does not sleep between checking containers.
When the fast CRC ends, CRC behavior reverts to the behavior before fast checking was invoked.
UNIX:
/usr/openv/pdde/pdcr/bin/crcontrol --crccheckrestartWindows:
install_path\Veritas\pdde\Crcontrol.exe --crccheckrestartGet the status
UNIX:
/usr/openv/pdde/pdcr/bin/crcontrol --crccheckstateWindows:
install_path\Veritas\pdde\Crcontrol.exe --crccheckstate
To configure data integrity checking behavior by editing the configuration files
- Use a text editor to open the contentrouter.cfg file or the spa.cfg file, which control the data integrity checking behavior.
The files reside in the following directories:
UNIX: storage_path/etc/puredisk
Windows: storage_path\etc\puredisk
- To change a parameter, specify a new value.
- Save and close the file.
- Restart the NetBackup Deduplication Engine and the NetBackup Deduplication Manager.
You can do this from the Daemons tab in the Activity Monitor.