Create a host backup

Deployment options: Netezza Performance Server for Cloud Pak for Data System Netezza Performance Server for Cloud Pak for Data

You use the nzhostbackup command to back up the files in the data directory.

The nzhostbackup command pauses the system while it runs; this allows it to checkpoint and archive the current /nz/data directory. The command resumes the system when it completes. The command typically takes only a few minutes to complete. Run database and host backups during a time when the Netezza Performance Server system is least busy with queries and users.

Important: Keep the host backups synchronized with the current database and database backups. After you change the catalog information, such as by adding new user accounts, new objects such as synonyms or tables, altering objects, dropping objects, truncating tables, or grooming tables, use the nzhostbackup command to capture the latest catalog information. Also, update your database backups.

The following is an example:

nzhostbackup /backups/nzhost_latest.tar.gz
Starting host backup. System state is 'online'.
Pausing the system ...
Checkpointing host catalog ...
Archiving system catalog ...
Resuming the system ...
Host backup completed successfully. System state is 'online'.