Hp NonStop G-Series Uživatelský manuál stáhnout pdf (Strana 65)

Switchovers

ServerNet Nomadic Disk (Release 2) User’s Guide—523968-001

5-5

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

Position on page 5-4.

•

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.

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Hp NonStop G-Series Uživatelský manuál Strana 65