Availability Suite Properties
The following table describes the Availability Suite properties that the Geographic Edition
software defines.
Table A-1 Availability Suite Properties
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Device Group Property: Enable_volume_set (Boolean) |
Defines whether the volume sets and fallback snapshots that
are defined in the /var/cluster/geo/avs/AVSdevicegroupname-volset.ini and the /var/cluster/geo/avs/AVSdevicegroupname-snapshot.ini files are enabled by the
Geographic Edition software when the device group is added to a protection group.
Set to either true or false. Tuning recommendations: This property cannot be tuned
after the device group is added to a protection group. Category: Optional Default: false |
Device Group
Property: Local_logical_host (string) |
Defines the local logical hostname that is used for the
replication of the device group. Do not use an underscore ( _) character in the
logical hostname. Tuning recommendations: This property cannot be tuned after the device group is
added to a protection group. Category: Required Default: None |
Data Replication Property: Nodelist (string array) |
Lists
the host names of the machines that can be primary for the
device group in the protection group. Device groups in the protection group must share
the same ordered node list. This list is comma delimited. Tuning recommendations: This
property can be tuned only when the protection group is offline. Category: Optional Default: All
nodes in the cluster |
Data Replication Property: Remote_logical_host (string) |
Defines the remote logical hostname
that is used for the replication of the device group. Do not use
an underscore ( _) character in the logical hostname. Tuning recommendations: This property cannot be
tuned after the device group is added to a protection group. Category: Required Default: None
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Replication Resource Property: Snapshot_volume (string array) |
Defines all fallback snapshots automatically enabled by Geographic Edition
software for the secondary volumes in a single device group. A fallback snapshot
is a compact dependent shadow volume created on the secondary cluster immediately prior
to the resynchronization of a secondary volume, from which the secondary volume can
be reconstructed if resynchronization fails. This Snapshot_volume property is set on the Availability Suite
replication resource AVSdevicegroupname-rep-rs that is automatically created for a device group when it is
added to a protection group. The value of the property is an array
containing multiple entries: one for every volume in the device group for which
a fallback snapshot is configured. Entries are in the form master_vol:shadow_vol:bitmap_shadow_vol where master_vol
specifies one replicated volume in the device group for which a fallback snapshot
is enabled, shadow_vol specifies a shadow volume, and bitmap_shadow_vol specifies the bitmap volume
for the shadow volume. Full path names are required and all three volumes
must be in the same device group. Tuning recommendations: This property can be
tuned any time. Category: Optional Default: None |
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