Zimbra Storage Volumes
A policy is stored in the global and server attribute zimbraHSMPolicy. HSM polices are search based to take advantage of Zimbra's advanced search capabilities. See /opt/zimbra/docs/query.txt. The zimbraHSMPolicy attribute is multi-valued which is used in the creation of multiple policies. All polices are evaluated during a single HSM run.
The default HSM policy will move document and message types older than 30 days from the active primary message volume to the active secondary storage volume. Mailbox
zmprov gs `zmhostname` zimbraHSMPolicy zimbraHSMPolicy: message,document:before:-30days
Search based HSM permits the creation of custom policies. Here are some examples.
zmprov mcf zimbraHSMPolicy 'message:before:-129600minutes' zimbraHSMPolicy 'document,wiki:before:-10080minutes' zmprov mcf +zimbraHSMPolicy 'message:before:-1day in:Trash' zmprov mcf +zimbraHSMPolicy 'message,document:before:-5day is:anywhere has:attachment larger:5m is:read'
A "+" prefixes the zimbraHSMPolicy attribute name when working with multiple values of the attribute. The attribute can also be specified multiple times in a single provisioning command when multiple values are desired. Specifying a single attribute value in a single provisioning command will wipe out other instances of the value if there were any prior to running the command. Always retrieve the current configuration before setting values to see what values exist.
zmprov gcf zimbraHSMPolicy