Forum Discussion

Arturo_Lopez's avatar
Arturo_Lopez
Level 5
9 years ago

VMWare Backup consumed space on DataStore

Hello, Actually we are having a space problems in some dataStore of VCenter. The problems seems to occur after take a backup of VMWare. I need to know if when netbackup take a backup from VMware i...
7.6
Backup and Recovery
Linux
NetBackup
Troubleshooting
  • sdo's avatar
    sdo
    9 years ago
    As soon as a VMware snapshot becomes active then *ALL* disk IO writes/updates are cached in to a write pending log, i.e. the snapshot. The snapshot can grow rapidly for very active guest virtual machines. It is best practice in VMware to leave 15% to 20%, or more, free space within a VMFS datastore when there are VMs in the datastore which require backups.
Mark_Solutions's avatar
Mark_Solutions
Level 6
9 years ago

As far as i know it is the same as a snapshot created by vCenter .. it is requesetd by the bpfis process on the Netackup VMware backup host and passes the requirements as laid out in your VMware policy to vCenter to actually create the snapshot.