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Oracle Solaris Cluster Geographic Edition Reference Manual Oracle Solaris Cluster 4.1 |
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Oracle Solaris Cluster Geographic Edition Reference Manual Oracle Solaris Cluster 4.1 |
- create or manage protection groups
/usr/cluster/bin/geopg -?
/usr/cluster/bin/geopg -V
/usr/cluster/bin/geopg add-device-group -p property [-p…] devicegroupname protectiongroupname
/usr/cluster/bin/geopg add-replication-component -p property [-p…] configurationname protectiongroupname
/usr/cluster/bin/geopg add-resource-group resourcegroup[,resourcegroup…] protectiongroupname
/usr/cluster/bin/geopg create -s partnershipname -o localrole [-d datareplicationtype] [-p property [-p…]] protectiongroupname
/usr/cluster/bin/geopg delete protectiongroupname
/usr/cluster/bin/geopg get -s partnershipname [protectiongroupname]
/usr/cluster/bin/geopg list [protectiongroupname] […]
/usr/cluster/bin/geopg modify-device-group devicegroupname -p property [-p…] protectiongroupname
/usr/cluster/bin/geopg modify-replication-component configurationname -p property [-p…] protectiongroupname
/usr/cluster/bin/geopg remove-device-group devicegroupname protectiongroupname
/usr/cluster/bin/geopg remove-replication-component configurationname protectiongroupname
/usr/cluster/bin/geopg remove-resource-group resourcegroup[,resourcegroup…] protectiongroupname
/usr/cluster/bin/geopg set-prop -p property [-p…] protectiongroupname
/usr/cluster/bin/geopg start -e {local | global} [-n] protectiongroupname/usr/cluster/bin/geopg stop -e {local | global} [-D] protectiongroupname/usr/cluster/bin/geopg switchover -m newprimaryclustername [-f] protectiongroupname
/usr/cluster/bin/geopg takeover [-f] protectiongroupname
/usr/cluster/bin/geopg update protectiongroupname
/usr/cluster/bin/geopg validate protectiongroupname
The geopg command enables you to configure and maintain protection groups. You can perform the following tasks:
Configure a protection group between clusters that participate in a partnership. This task includes the configuration of associated data replication parameters.
Add or remove resource groups and data-replication disk device groups.
Add, modify, and remove data replication parameters that are associated with a protection group property.
Retrieve the current configuration of a specific protection group or all defined protection groups.
Activate a protection group.
Deactivate a protection group.
Switch over the role of a protection group.
Take over the primary role of a protection group.
Before you create a protection group, ensure that the clusters that will host the protection group are already placed in a partnership.
To run the geopg command to create, modify, or delete a protection group, or a data-replication disk device group, you must be assigned the proper role-based access control (RBAC) rights profile.
If you have root access, you have permission to perform any operation. If you do not have root access, the following RBAC rights apply:
Basic Solaris User. You can read information about Oracle Solaris Cluster Geographic Edition (Geographic Edition) entities by running commands such as geopg list, geohb list, and geops list.
Geo Management. You can perform all the read operations that someone with Basic Solaris User access can perform. You can use commands geohb create, geopg switchover, geoadm start, and geoadm stop to perform administrative and configuration operations.
For more information, see the rbac(5) man page and Geographic Edition Software and RBAC in Oracle Solaris Cluster Geographic Edition System Administration Guide.
The general form of this command is as follows:
geopg [subcommand] [options] [operands]
You can omit subcommand only if options specifies the option -?, -o, -V, or -v.
Each option of this command has a long form and a short form. Both forms of each option are given with the description of the option in the OPTIONS section of this man page.
The geopg start command activates the protection group on both the primary and standby clusters. This activation starts the Geographic Edition management of the resource groups in the protection group. Depending on the form of the command that you use and on the cluster where you issue the command, activating the protection group might not start the resource groups on that cluster. The resource groups start, or are brought online, only on the primary cluster.
The -e option defines the scope of the geopg start command. If you specify -e local, the geopg start command runs on the cluster where you issue the command. If you specify -e global, the geopg start command runs on both clusters in the partnership.
The different forms of the command have the following effects:
If you run the geopg start -e local command on the primary cluster, and if you run the geopg start -e global command on either cluster, the Geographic Edition software activates the protection group on both clusters in the partnership. The software brings online resource groups on the primary cluster only. The resource groups are put in a managed state.
If you run the geopg start -e local command on the standby cluster, the Geographic Edition software activates the protection group on the standby cluster only. Resource groups are not started on the standby cluster. The resource groups are put in the Unmanaged state.
The following subcommands are supported:
Enables a data-replication disk device group to be part of a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Enables a data-replication component to be part of a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Enables an application resource group to be part of a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
If a protection group is active when you add a resource group, the resource group must be in either the Unmanaged or Online state. To start an unmanaged resource group, run the geopg start command.
If a protection group is inactive, the resource group must be in the Unmanaged state when you add the resource group. If the resource group is offline, bring the resource group to the Unmanaged state before adding the resource group to an inactive protection group.
Creates a protection group within an existing partnership. The system performs this action on only the local cluster.
Deletes a protection group. The system performs this action on only the local cluster.
Creates the local configuration for a protection group that already exists on the remote partner cluster by retrieving the configuration from the partner cluster. If you do not specify a protection group name, all the protection groups that have been configured for the partnership on the remote cluster will be created on the local cluster. The system performs this action on only the local cluster.
Displays the following information about the protection group:
Defined protection groups
Resource groups that are wrapped into protection groups
Operation status information
If you do not specify the name of a protection group, the list subcommand displays information for all the protection groups configured on the local cluster. The system performs this action on only the local cluster.
Modifies the properties of a data-replication disk device group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Modifies the properties of a data-replication component. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Removes data-replication disk device groups from a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Removing a data-replication disk device group does not stop data replication or change the data-replication status for that data-replication disk device group.
Removes data-replication components from a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Removing a data-replication component does not stop data replication or change the data-replication status for that data-replication component.
Removes resource groups from a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Removing an application resource group does not change the application resource group to the Unmanaged state.
Modifies the properties of a protection group. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Starts a protection group. When you start a protection group for the first time, the role of the protection group on a cluster is the role that was assigned to the protection group when you created the protection group. After that, the protection group starts with the latest role it was given.
The start subcommand uses Oracle Solaris Cluster commands to bring resources and resource groups under the management of the protection group.
You can start a protection group on the following levels, depending on whether you specify local or global to the -e option:
With the -e global option, starts the protection group on all clusters where the protection group has been configured
With the -e local option, starts the protection group on either the primary cluster or standby cluster, whichever cluster the command is issued from
For more details about activating a protection group and the effects on the resource groups in that protection group, see “How Protection Groups Start” in the DESCRIPTION section of this man page.
Starting a protection group enables the following events to occur:
The protection group configuration is validated.
Clusters can determine whether an operation has been completed.
Data replication can be started, depending on the data replication that you use.
When using Oracle Solaris Availability Suite (Availability Suite) software, you can start data replication from the primary cluster only.
When using EMC Symmetrix Remote Data Facility (SRDF) software, you can start data replication from either the primary or standby cluster.
When using the Oracle Data Guard software, you can start data replication from the primary cluster by using the local or the global scope.
For all supported data replication software, you must not specify the -n option when using this form of the command.
Protected applications can be started.
If the partner can be reached, the partner cluster can be notified of the protection group activation.
Note - Protection groups that are referred to as “online” are active protection groups.
Stops a protection group. You can stop a protection group on the following levels, depending on whether you specify local or global to the -e option:
With the -e global option, stops the protection group on all clusters where the protection group has been configured
With the -e local option, stops the protection group on either the primary or standby cluster, whichever cluster the command is issued from
Stopping a protection group enables the following events to occur:
The protection group becomes inactive.
Data replication and application resource groups stop. You can prevent application resource groups from stopping by taking the resource groups out of the protection group before you stop the protection group.
When using Availability Suite software, you can stop data replication from the primary cluster only.
When using EMC Symmetrix Remote Data Facility (SRDF) software, you can stop data replication from either the primary or standby cluster.
When using Oracle Data Guard, you can stop data replication from either the primary or standby cluster, by using either the local or the global scope.
If the partner cluster is reachable, the partner cluster is notified that the protection group has been stopped.
Switches the assigned role of a cluster in the protection group. You must start the protection group before you can perform a switchover. The system performs this action on the local cluster, then propagates the action to the partner cluster.
Forces a cluster to become the primary cluster without considering the partner cluster state. The system performs this action on the local cluster, then propagates the action to the partner cluster.
If you issue a takeover from the standby cluster and the cluster is able to communicate with the partner cluster, the Geographic Edition software switches the role of the partner cluster so that the partner cluster becomes the new standby. This operation is not the same as a switchover. The protection group is deactivated on the new standby.
After the geopg takeover command successfully completes, reactivating the protection group on the standby cluster might require that you recover and synchronize data.
Note - When possible, run the geopg switchover command instead of the geopg takeover command to coordinate between partner clusters to avoid loss of replicated data.
Run the geopg takeover command only in situations when the primary cluster is not available or during unplanned downtime. The situation must justify a potential loss of data and the time required to repair and to reactivate the protection group on the standby cluster.
Resynchronizes the configuration information of the local protection group with the partner's configuration information. The geopg update command overwrites the configuration information of the protection group on the local cluster with the configuration information from the partner cluster. This command does not overwrite replicated data. The system performs this action on only the local cluster.
Validates a protection group on the local cluster by performing a sanity check of the dynamic values. The system performs this action on only the local cluster.
The following options are supported:
Displays help information. When this option is used, no other processing is performed.
You can specify this option with or without a subcommand.
If you specify this option without a subcommand, the list of subcommands for this command is displayed.
If you specify this option with a subcommand, the usage options for the subcommand are displayed.
The question mark might be interpreted as a special character by some shells. Use quotes (-"?") or an escape character to avoid pattern matching.
Specifies that only the data replication should be deactivated, leaving the protection group active. If you do not use this option, the entire protection group is deactivated. To stop a protection group that has already had its data replication subsystem stopped, you must run the geopg stop command again and omit this option.
Specifies the data replication mechanism for data replication between the clusters of the protection group.
The datareplicationtype must be one of the following strings:
Specifies that the data replication mechanism is Availability Suite Remote Mirror, with patches.
Specifies that the data replication mechanism is Oracle Data Guard.
Specifies that the data replication mechanism is the dynamic EMC Symmetrix Remote Data Facility (SRDF).
Specifies whether the command operates only on the local cluster, local, or on both clusters, global, where the protection group has been configured.
Forces the command to perform the operation without asking you for confirmation.
Specifies the name of the cluster that is to be the new primary cluster for the protection group.
This option is only valid when starting a protection group that is not active. If the protection group is not active, it is started without data replication. If data replication for this protection group is already running independently, it is stopped before the protection group is started.
If the protection group is already active with data replication enabled, data replication is not stopped. An error message is displayed that states that the geopg stop -D command should be used to stop data replication for an active protection group.
If this option is omitted, data replication starts at the same time as the protection group.
Specifies the role of the local cluster as either primary or secondary when used with the create subcommand. You can change the role of a cluster by running the geopg switchover command.
Sets the properties of a protection group.
A protection group property is assigned a value by using a name=statement pair statement. You can set multiple properties at one time by using multiple statements.
See the EXTENDED DESCRIPTION section for defined properties.
Specifies the name of the existing partnership where the protection group is configured.
Displays the version of the command.
Do not specify this option with subcommands, operands, or other options, as they are ignored. The -V option only displays the version of the command. No other operations are performed.
The following operands are supported:
Specifies the name of any device group or replicated component that you want to add.
Specifies the name of the disk device group to be created or added to the protection group.
Specifies the name of the protection group. The create subcommand fails if the protection group that you specify with this option already exists. The modify subcommand fails if the specified protection group is not valid.
Specifies a comma-separated list of resource groups to add to or delete from the protection group. The specified resource groups must already be defined.
If a protection group is active when you add a resource group, the resource group must be in either the Unmanaged or Online state. To start an unmanaged resource group, run the geopg start command.
If the protection group is inactive when you add a resource group, the resource group must be in the Unmanaged state before you add the resource group.
This section contains descriptions of properties that you can specify.
Note - Property values, such as true and false, are not case sensitive.
Describes the protection group. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Optional
None
Assigned at creation and tunable at runtime
Specifies whether to allow any dependencies between resource groups and resources that belong to this protection group and resource groups and resources that do not belong to this protection group. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Optional
False
Any time
Specifies the arguments that follow the system-defined arguments that are paired with the role change callback script during a protection group switchover or takeover. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Optional
None
Assigned at creation and tunable at runtime
Specifies the absolute path to the executable file to run when the primary cluster of the protection group changes. This file should exist on all nodes of both partner clusters that host the protection group. This script is run before the application resource group is brought online on the new primary cluster. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Optional
None
Assigned at creation and tunable at runtime
Specifies, in seconds, the longest time that the Geographic Edition software waits for a response after running a geopg command. Examples of responses include start, stop, switchover, and takeover. If the command does not return within the timeout period, the Geographic Edition software reports the operation as timed out, even if the underlying command that was run eventually completes successfully.
The timeout period applies to operations on a per-cluster basis. An operation with a local scope times out if the operation is not completed after the specified timeout period.
An operation with a global scope consists of an action on the local cluster and an action on the remote cluster. The local and remote actions are timed separately. So, an operation with a global scope times out if the local operation is not completed after the specified timeout period or if the remote operation is not completed after the specified timeout period.
For example, the following command is started with a local scope:
# geopg start -e local protectiongroupname
If you set the timeout property 3000 seconds, the geopg start command times out if the operation does not complete after 3000 seconds.
You can start the same command with a global scope as follows:
# geopg start -e global protectiongroupname
If the timeout property is set to 3000 seconds, the geopg start command times out if the operation is not completed on the local cluster after 3000 seconds or if the operation is not completed on the remote cluster after 3000 seconds. If the local action takes 1500 seconds and the remote action takes 1500 seconds, the operation is not timed out.
The protection group timeout value is an estimated value that is applied to some sub-operations. The timeout value does not apply to the entire operation, so not every operation on a protection group is timed against the timeout period. For example, the time taken to initialize the data structure and to check for the precondition of the operation are not timed in the timeout period.
You can specify a maximum of 1,000,000 (one million) seconds for the timeout property.
Optional
3600
Assigned at creation and tunable at runtime
Lists the disk device groups where the data is written. The disk device groups you specify must be of the same type. You can specify more than one disk device group by separating each disk device group with a comma. The system sets this property on the local cluster, then propagates the value to the partner cluster.
To specify Solaris Volume Manager disk sets when a disk set name is not the same on both clusters, use the following syntax which includes the cluster names:
Cluster_dgs=local-cluster[diskset]:remote-cluster[diskset]
Include the brackets ([ ]) around all disk set names for each cluster. Separate multiple disk set names with a comma. For example:
Cluster_dgs=paris[dg1,dg2]:newyork[dg10,dg11]
Optional
Empty
Only when the protection group is inactive on both partner clusters
Specifies the device group identifier as “SRDF Device Group.” You must set this property to DG. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Optional
DG
Never
Lists the host names of the machines that can be primary for the replication mechanism. This list is comma delimited. The system sets this property value on only the local cluster.
Optional
Empty
Any time
Specifies the Symmetrix Remote Data Facility (SRDF) identification of the primary devices. The value also set on the partner cluster as the R2_SID value.
Note - If you do not specify a value for this property when you add a device group, the Geographic Edition software searches for the value and sets the property automatically.
Required
None, until you add a Symmetrix Remote Data Facility (SRDF) device group
Any time
Specifies the Symmetrix Remote Data Facility (SRDF) identification of the secondary devices. The value is also set on the partner cluster as the R2_SID value.
Note - If you do not specify a value for this property when you add a device group, the Geographic Edition software searches for the value and sets the property automatically.
Required
None, until you add a Symmetrix Remote Data Facility (SRDF) device group
Any time
Name of the local Oracle database in the Oracle Data Guard Broker configuration that is being replicated to the remote cluster. This name is the Oracle db_unique_name initialization parameter for the Oracle RAC database on the local cluster. The name is also set on the partner cluster as the remote_database_name value.
Required
None
At creation
Oracle net service name that is used to connect to the local Oracle database. The name is also set on the partner cluster as the remote_db_service_name value.
Required
None
Any time
Name of the local Oracle RAC server proxy resource group that manages the local database in the Oracle Data Guard Broker configuration. The name is also set on the partner cluster as the remote_rac_proxy_svr_rg_name value.
Required
None
At creation
Name of the remote database in the Oracle Data Guard Broker configuration that is being replicated from the local cluster. This name is the Oracle db_unique_name initialization parameter for the Oracle RAC database on the remote cluster. The name is also set on the local cluster as the local_database_name value.
Required
None
At creation
Oracle net service name that is used to connect to the remote Oracle database. The name is also set on the local cluster as the local-db_service_name value.
Required
None
Any time
Name of the remote Oracle RAC server proxy resource group on the partner cluster that manages the remote database in the Oracle Data Guard Broker configuration. The name is also set on the local cluster as the local_rac_proxy_svr_rg_name value.
Required
None
At creation
The Oracle Data Guard replication mode between the primary database and the standby database. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Valid values to which you set this property include maxAvailability, maxPerformance, and maxProtection.
Required
None
Any time
Type of Oracle standby database that is used in the Oracle Data Guard Broker configuration. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Valid values to which you set this property include logical and physical.
Required
None
At creation
Password for the Oracle SYSDBA privileged database user. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Do not specify a password on the command line. If you specify only -p sysdba_password=, the geopg command prompts you to type an actual password, which is not displayed as you type it.
Required
None
Any time
Name of an Oracle SYSDBA privileged database user who can perform the Oracle Data Guard Broker switchover and takeover operations on both the primary and standby clusters. The Oracle Solaris Cluster Geographic Edition software uses this property to monitor and manage the Oracle Data Guard Broker configurations. The system sets this property on the local cluster, then propagates the value to the partner cluster.
Required
None
Any time
Determines whether the volume sets that are defined in the /var/cluster/geo/avs/AVS-devicegroup-volset.ini file, and the fallback snapshots that are defined in the /var/cluster/geo/avs/AVS-devicegroup-snapshot.ini file are to be enabled by the Oracle Solaris Cluster Geographic Edition software. You can set this property to True or to False. The system sets this property on the local cluster, then propagates the value to the partner cluster.
If the enable_volume_set property is set to True, volume sets that are defined in the /var/cluster/geo/avs/AVS-devicegroup-volset.ini file are enabled when the device group is added to the protection group or when the protection group that contains the device group is replicated from the partner cluster. Any volume sets of that device group that are not defined in the file are disabled. The /var/cluster/geo/avs/AVS-devicegroup-volset.ini file must exist on every node of the primary and standby cluster. In addition, if the enable_volume_set property is set to True, the fallback snapshots defined in the/var/cluster/geo/avs/AVS-devicegroup-snapshot.ini file are enabled. A fallback snapshot is a compact dependent shadow volume that is created immediately prior to the resynchronization of a secondary replicated volume in the Oracle Solaris Cluster Geographic Edition software. If resynchronization fails, the secondary replicated volume can be reconstructed by using the fallback snapshot. The /var/cluster/geo/avs/AVS-devicegroup-snapshot.ini file must exist on any node of a cluster on which a fallback snapshot will be automatically enabled. Fallback snapshot configuration is optional.
If the Enable_volume_set property is set to False, you must manually enable volume sets and fallback snapshots by using the Availability Suite commands.
The parameters in the volume set file that are handled by the Geographic Edition software are described in the following table.
Note - The Geographic Edition software does not handle other parameters of the volume set file, such as, size of memory queue, and number of asynchronous threads. You must adjust these parameters manually by using Availability Suite commands.
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The parameters required to enable a fallback snapshot for a replicated volume are shown in the following example line from a AVS-devicegroup-snapshot.ini configuration file. This line defines one compact dependent shadow volume that is to be created immediately prior to a resynchronization of the listed secondary volume. Each line of the AVS-devicegroup-snapshot.ini file configures a fallback snapshot for one secondary volume in the device group in the format shown in the following example:
/dev/md/avsset/rdsk/d100 /dev/md/avsset/rdsk/d102 /dev/md/avsset/rdsk/d103
Each line in the AVS_devicegroup-snapshot.ini file contains the following types of entries:
/dev/md/avsset/rdsk/d100 – Secondary replicated volume
/dev/md/avsset/rdsk/d102 – Fallback snapshot volume
/dev/md/avsset/rdsk/d102 – Fallback snapshot bitmap
Optional
False
Until you add the device group to a protection group
Defines the local logical host name that is used for the replication of the disk device group. Do not use an underscore character (_) in the logical host name. The name is also set on the partner cluster as the Remote_logical_host value.
Required
None
Until you add the device group to a protection group
Lists the host names of the machines that can be primary for the replication mechanism. You can specify more than one host name by separating each host name with a comma. The system sets this property value on only the local cluster.
Optional
All nodes in the cluster
Only when the protection group is inactive
Specifies the remote logical host name that is used for the replication of the disk device group. The name is also set on the partner cluster as the Local_logical_host value.
Required
None
Until you add the device group to a protection group
The following exit values are returned:
The command completed successfully.
An error occurred.
Example 1 Adding an Oracle Data Guard Broker Configuration to a Protection Group
The following geopg command adds the Oracle Data Guard Broker configuration mysales.com to the protection group sales-pg.
To ensure security, do not supply a password when you specify the sysdba_password property. If you do not provide a password, the geopg command prompts for one.
phys-paris-1# geopg add-replication-component \
-p local_database_name=sales \
-p remote_database_name=salesdr \
-p local_db_service_name=sales-svc \
-p remote_db_service_name=salesdr-svc \
-p standby_type=physical \
-p replication_mode=MaxPerformance \
-p sysdba_username=sys \
-p sysdba_password= \
-p local_rac_proxy_svr_rg_name=sales-rac-proxy-svr-rg \
-p remote_rac_proxy_svr_rg_name=salesdr-rac-proxy-svr-rg \
mysales.com sales-pg
Oracle Data Guard configuration "mysales.com" successfully added to the
protection group "sales-pg"Example 2 Creating a Protection Group That Uses Data Replication
The following geopg command creates a Availability Suite protection group avspg on the primary cluster cluster-paris.
# geopg create -s paris-newyork-ps -d avs -o primary \
-p Nodelist=phys-paris-1,phys-paris-2 avspgExample 3 Creating a Protection Group That Does Not Use Data Replication
The following geopg command creates a protection group example-pg that is not configured to use data replication.
# geopg create -s paris-newyork-ps -o primary example-pg
Example 4 Deleting a Protection Group While Keeping Application Resource Groups Online
The following geopg command keeps two application resource groups, apprg1 and apprg2, online while deleting their protection group, avspg. Remove the application resource groups from the protection group, then delete the protection group.
# geopg remove-resource-group apprg1,apprg2 avspg # geopg stop -e global avspg # geopg delete avspg
Example 5 Modifying a Protection Group
The following geopg command modifies the timeout property of the protection group avspg.
# geopg set-prop -p Timeout=3000 avspg
Example 6 Adding a Data Replication Device Group to an Availability Suite Protection Group
The following geopg command creates an Availability Suite data replication device group in the avspg protection group.
# geopg add-device-group -p Local_logical_host=lh-paris-1 \
-p Remote_logical_host=lh-newyork-1 -p Enable_volume_set=True avsset avspgIf the command returns successfully, volume sets that are defined in the /var/cluster/geo/avs/avsset-volset.ini file are enabled. The file might look like this for a Solaris Volume Manager device group.
lh-paris-1 /dev/md/avsset/rdsk/d100 /dev/md/avsset/rdsk/d101 lh-newyork-1 /dev/md/avsset/rdsk/d100 /dev/md/avsset/rdsk/d101 ip async q /dev/md/avsset/rdsk/d102 C avsset
The description of the parameters is as follows:
lhparis-1 — Primary host
/dev/md/avsset/rdsk/d100 — Primary data
/dev/md/avsset/rdsk/d101 — Primary bitmap
lh-newyork-1 — Secondary host
/dev/md/avsset/rdsk/d100 — Secondary data
/dev/md/avsset/rdsk/d101 — Secondary bitmap
ip — Protocol
async — Mode
q /dev/md/avsset/rdsk/d102 — disk queue
C — C tag
avsset — Device group
See attributes(5) for descriptions of the following attributes.
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