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15 setting volume group policies, Automatically restarting volume groups – HP 3PAR Operating System Software User Manual

Page 89

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15 Setting Volume Group Policies

For more information:

Use this policy:

To set volume groups to:

“Automatically Restarting Volume
Groups” (page 89)

auto_recover

Automatically restart after certain types
of failure

no_auto_recover

Never automatically restart (default)

“Generating Alerts for Slow
Resynchronizations of Asynchronous
Periodic Volume Groups” (page 90)

over_per_alert

Generate alerts when synchronization
between asynchronous periodic
volume groups is slow (default)

no_over_per_alert

Not generate slow synchronization
alerts for asynchronous periodic
volume groups

Set Remote Copy policies on the primary volume group. The command and policy setting is
automatically mirrored to the secondary volume group.

Solution

Problem

Ensure links are up on both systems and try the command
again. For more information, see

“Checking the Links

between Systems” (page 70)

.

If the mirror system does not respond to a command after
5 minutes (the timeout limit), an error message appears:

target system could not be

contacted

Automatically Restarting Volume Groups

By default, Remote Copy volume groups do not restart automatically.

To allow automatic restarts after all links between a Remote Copy pair fail and are
re-established, set the volume groups to the auto_recover policy. Enter either:

# setrcopygroup pol auto_recover

or:

# setrcopygroup pol auto_recover -pat

- Pattern of volume group names (for example, Group*)

If the volume groups stop as a result of a link failure, they automatically restart.

If the volume groups stop for any other reason (for example, I/O errors occur and the system
stops the volume groups), you must use the startrcopygroup command to manually restart
the volume groups.

To return the volume groups to the default policy and prevent volume groups from automatically
restarting, set the volume groups to the no_auto_recover policy.

# setrcopygroup pol no_auto_recover

or:

# setrcopygroup pol no_auto_recover -pat

Automatically Restarting Volume Groups

89

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