On primary node \pri – HP NonStop G-Series User Manual
Page 65
Switchovers
ServerNet Nomadic Disk (Release 2) User’s Guide — 523968-001
5 -5
On Primary node \PRI
On Primary node \PRI
1. Stop all running applications.
2. Prepare for changing ownership of the disk volumes:
•
If you are not using the Nomadic Disk Manager:
a. Use the SCF STOP DISK command to stop all ServerNet Nomadic Disk
drives.
b. Change the fiber-optic switches at the primary node to the opposite
position as described in
Moving the Fiber Optic Switches to the Opposite
•
If you are using the Nomadic Disk Manager:
a. Read
Section 7, Nomadic Disk Manager Interface
.
b. Notify Network Services to perform the network switchover to the backup
node, \BCK.
c.
Log on as the super ID and start the Nomadic Disk Manager at a TACL
prompt.
> NOMADIC
d. Use the LISTOPENS command to verify there are no open files on the
Nomadic volumes (except the SAFE.GUARD file on each volume, if
Safeguard is being used).
1 ND> LISTOPENS, SEGMENT *
e. Use the GIVE command to prepare for planned switchover.
2 ND> GIVE DATA
This command toggles the appropriate switch cards, switching the volumes
to \BCK.
3. Stop \PRI if required. If \PRI is to be used for a service or upgrade task, stop the
$ZTSM process to get a refreshed screen for a HP TSM service connection; for a
TSM low-level connection, log off and log on again to refresh the screen.
4. Inform the operators located at the \BCK node that the Nomadic volumes are ready
for switchover.