System information

55 of 114Release 7.0VNX™ System Operations
Back up the VNX database
VNX database created by the VNX software during installation is stored on disk in
the Control Station. The VNX database maintains vital information required for each
Data Mover or blade. The VNX for file software automatically creates a VNX
database backup file 1 minute after each hour. You can manually create a VNX
database backup file at any time.
Perform these tasks to back up the VNX database:
◆ "Automatic VNX database backup" on page 55
◆ "Manual VNX database backup" on page 56
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CAUTION
◆ EMC strongly recommends that you regularly copy the VNX database backup file
from the Control Station and save it to a remote location for safe keeping. Always
copy the VNX database backup file when hardware or software upgrades are
planned.
◆ Only EMC qualified support personnel should restore the VNX database by using
the VNX database backup file.
◆ Do not manually edit the nas_db database without consulting Customer Service.
Any changes you make might disrupt services.
Automatic VNX database backup
The VNX automatically backs up the entire database and saves it to a file named
nasdb_backup.1.tar.gz. in the /home/nasadmin directory. It does this 1 minute after
each hour. It also maintains the last 12 backup files.
To copy a VNX database backup file to a remote location, use FTP as described in
Using FTP and TFTP on VNX .