HP StorageWorks Storage Mirroring application notes Guidelines for networking and failover (T2558-96063, February 2008)

Storage Mirroring Guidelines for networking and failover application notes 21
DNS Failover Utility Command Syntax
Issue NFS clients cannot access mounts after failover.
Diagnosis UNIX clients may see NFS mounts become unresponsive after failover. This is a limitation of
the NFS client software and cannot be addressed with any Storage Mirroring configuration.
Some clients will handle the failover event seamlessly by automatically reconnecting the
session. See the appropriate documentation or contact the NFS client software publisher's
technical support to determine whether the client can be configured to automatically
reconnect.
Command dfo
Description Used in script files to failover the DNS server name
Syntax
dfo [/dnssrvname [dnsservername] /srcname [sourceFQDN]
/srcip [sourceip] /tarip [targetip]
/tarname [targetFQDN] /recordtype [recordtype]
/username [username] /password [password]
/dnszone [dnszonename] /dnsdomain [dnsdomainname]
/logfile [logfilename] /failback [fbswitch]
/setpassword [username] [password] /getpassword
/trustee [trusteename] /verbose /test /debug /? | /help ]