After a disaster, you can keep serving data by switching to the disaster recovery vFiler unit while trying to recover the original vFiler unit that was damaged during the disaster.
- On the destination storage system, enter the following command:
vfiler dr activate source_vfiler@source_filer
- Configure the DNS or NIS servers:
|If you specified...
|A different set of DNS or NIS servers
||Copy the /etc/hosts.equiv.bak file to the /etc/hosts.equiv file.
|The same set of DNS or NIS servers
||Go to Step 3.
When you activate the vFiler unit in the event of a disaster, the /etc/hosts.equiv file can be overwritten. If you specified a different set of DNS or NIS servers for the disaster recovery location when you created the disaster recovery vFiler unit, the existing /etc/hosts.equiv file is overwritten and the old file is copied to an /etc/hosts.equiv.bak file.
- To change the name of the Windows domain controller, use the cifs prefdc command.
- To change the Windows WINS server, use the cifs setup command.
Note: If the Windows domain has changed, you might have to change the permissions on the Windows data files to allow your users the same access they had in the old domain.
- Make adjustments on the clients, such as remounting volumes and qtrees.
- Add static route entry if required, because static routing information is not carried to the destination storage system.
After you finish
- If you copied quota information to the destination storage system’s /etc/quotas file, activate the quotas on that storage system. For activating quota on each volume, use the following command:
quota on volume_name
- Edit the disaster recovery vFiler unit’s /etc/hosts.equiv file by adding the name of the trusted host for administering the disaster recovery vFiler unit.
If the trusted host is either a Windows or a UNIX system and the trusted user is not the root user, you need to add the user name as well. For example:
- Add the path to the root volume and the name of the trusted host to the disaster recovery vFiler unit’s /etc/exports file.
/vol/vf1_root access=adminhost, root=adminhost
- If the vFiler unit’s storage units contain iSCSI LUNs, reconfigure iSCSI authentication.
For instructions, see the Data ONTAP SAN Administration Guide for 7-Mode.