This article applies to:
OS: Windows server
Product edition: Phoenix
Problem description
Virtual Machine (VM) backup stops progressing after a successful snapshot creation and gives error “Got exception while parsing LCN and size from ntfscluster command”. The scheduled backups fail as "Backup Window Expired" and Manual (Backup Now) backups will be successful.
Cause
This can occur when the backup job takes long time to parse and process pagefile.sys and hiberfil.sys files.
Traceback
[ERROR] Got exception while parsing LCN and size from ntfscluster command: invalid literal for int() with base 10: '0x80' [ERROR] Got exception while parsing LCN and size from ntfscluster command: invalid literal for int() with base 10: 'VCN'
Resolution
Let the Phoenix backup proxy back up the entire hiberfil.sys and pagefile.sys as is. To allow that, set VMWARE_EXCLUDE_FILTER to False in the Phoenix.cfg file using the below steps.
Open the terminal and stop Agent Client Service.
Agent Version 6.x.x:
/etc/init.d/Phoenix stopAgent Version 7.x.x:
service Druva-EnterpriseWorkloads stopVerify if any Druva or Phoenix related processes.
Agent Version 6.x.x:
ps -ef| grep -i PhoenixAgent Version 7.x.x:
ps -ef | grep -i EnterpriseWorkloadsIf any process is still found running, kill the process with the following command:
Kill -9 <process id>Take a backup of the Configuration File
Agent Version 6.x.x:
/etc/Phoenix/FS/Phoenix.cfgAgent Version 7.x.x:
/etc/Druva/EnterpriseWorkloads/vmware/VMwareConfig.yamlEdit
Phoenix.cfg/VMwareConfig.yamlfile using vi editor using below commandAgent Version 6.x.x:
vi Phoenix.cfgType ‘ i ‘ to activate insert mode
Add the following line to the configuration file:
VMWARE_EXCLUDE_FILTER = False
Agent Version 7.x.x:
vi VMwareConfig.yamlType ‘ i ‘ to activate insert mode
change the value of parameter from
vmware_exclude_filter = trueTo
vmware_exclude_filter = falseType esc key followed by :wq to save and exit file.
Then again Open the terminal and start Agent Client Service.
Agent Version 6.x.x:
/etc/init.d/Phoenix startAgent Version 7.x.x:
service Druva-EnterpriseWorkloads startInitiate the backup job.
💡 Tip
When you set VMWARE_EXCLUDE_FILTER to False in the Phoenix.cfg file, back up the pagefile.sys and hiberfil.sys files as it is without compression and deduplication. Otherwise, if Phoenix is able to parse the files then they are compressed and further deduplicated to save the storage space. Storage utilization for this resource is expected to increase a bit with the above steps.
Verification
Again trigger the backup job and it should complete successfully.