Setting the RLINK attributes
Use the
vxrlink set command to set the specified attribute field to the RLINK. The attribute names specify the field that needs to be set within the specified RLINK.
Syntax for
vxrlink set command
vxrlink [-g <diskgroup>] set attribute=value....<rlink>
Example
vxrlink -g vvrdg -r rvg set synchronous=off rlink
vxrlink -g vvrdg -r rvg set srlprot=dcm rlink
vxrlink -g vvrdg -r rvg set bandwidth_limit=2M rlink
vxrlink -g vvrdg -r rvg set synchronous=off srlprot=autodcm
latencyprot=fail packet_size=1400 protocol=TCP
bandwidth_limit=2M compression=true rlink
The following table lists the
vxrlink set command attributes.
Table: Attributes for vxrlink set command
| Attribute | Description |
|---|---|
synchronous |
Specifies the mode of replication. |
srlprot |
Enables or disables log protection. |
latencyprot |
Enables or disables latency protection. |
latency_high_mark |
Specifies the maximum number of outstanding requests that are allowed when latency protection is enabled. |
latency_low_mark |
Specifies a value such that when the writes are stalled, the number of outstanding requests must drop to this value before latency protection |
| can be disabled. | |
local_host |
Specifies the name or IP address of the local host. |
remote_host |
Specifies the name or IP address of the remote host. |
packet_size |
Specifies the size of packets in which data can be sent through the network during replication. |
bandwidth_limit |
Specifies a value that can be used to control the bandwidth that Volume Replicator needs to use for replication. If this attribute is not specified Volume Replicator uses the entire available bandwidth for replication. To disable bandwidth throttling, set this attribute to none . Note that the specified bandwidth value must be at least 56 Kbps. You can specify the value in units of Kbps , Mbps , Gbps , or bps . The default is Kbps. If no value is specified then bandwidth throttling is disabled. |
protocol |
Specifies the protocol to be used for replication between the Primary and Secondary. Specify TCP or UDP. |
| If the setup includes a Bunker Secondary and replication is over IP, the protocol can be set to UDP or TCP. The default is UDP. | |
| If the storage at the Bunker Secondary is directly accessible from the Primary, for example, DAS or SAN, use the STORAGE protocol, otherwise use TCP/IP or UDP/IP | |
| Note: If the replication protocol for the Bunker Secondary has been set to STORAGE then you can change it only by deleting and recreating the Bunker with the required protocol; UDP/IP or TCP/IP. You cannot change the STORAGE protocol using the Change Replication Settings option. | |
| Compression | Specifies whether compression is enabled or disabled and takes the value true or false respectively. |
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