Creating new RLINK

Last published : Jul 07, 2026
Use the vxrlink make command to create a new RLINK based on the attributes that have been specified.
Syntax for vxrlink make command
vxrlink -g <diskgroup> make <name> attribute=value
Example
vxrlink -g vvrdg make rlk_sechost synchronous=override \
local_host=prihost remote_host=sec_host remote_dg=vvrdg \
remote_rlink=rlk_prihost srlprot=off latencyprot=fail \
latency_high_mark=10000 latency_low_mark=9950 protocol=TCP
The following table lists the attributes that can be specified for the vxrlink make command.
Table: Attributes for the vxrlink make command
Attribute Description
synchronous Indicates the mode in which the RLINK should operate; synchronous, asynchronous, or synchronous override mode. The attribute can be set to one of the following values\:
- Set synchronous=off for asynchronous mode.
- Set synchronous=override for synchronous override mode.
- Set synchronous=fail for synchronous mode.
local_host Sets the name or IP address of the local host.
remote_host Sets the name or IP address of the remote host.
remote_dg Sets the name of the remote disk group.
remote_rlink Sets the name of the remote RLINK.
latencyprot Indicates whether latency protection is enabled for the RLINK. The attribute can have one of following values\:
- Set latencyprot=off to disable latency protection.
- Set latencyprot=override to enable latency protection. It is automatically disabled if the RLINK becomes inactive due to a disconnection or administrative action.
- Set latencyprot=fail to enable latency protection.
See Latency protection - latencyprot attribute .
srlprot Enables or disables log protection. The data volumes must have a DCM log for srlprot to be set to DCM or AutoDCM. This attribute can be set to the following values\:
srlprot=autodcm enables log protection. The DCM logs are used to synchronize the data when the Replicator Log overflows, even when the Primary and Secondary are connected.
srlprot=dcm enables log protection. The DCM logs are used to synchronize the data if the Replicator Log overflows, when the Primary and Secondary are disconnected.
srlprot=override enables log protection. If the Secondary is still connected and the Replicator Log is about to overflow then the writes are stalled until a predetermined amount of space, (that is, 5% or 20 MB (whichever is lesser) becomes available in the Replicator Log. The log protection is automatically disabled if the Secondary becomes inactive due to a disconnection or administrative action, and Replicator Log will overflow.
srlprot=fail enables log protection. If the log is about to overflow the writes are stalled until a predetermined amount of space, that is, 5% or 20 MB (whichever is lesser) becomes available in the Replicator Log. If the connection between Primary and Secondary RVG is broken, then, any new writes to the Primary RVG are failed.
srlprot=off disables log 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 because the number of outstanding write requests is higher than latency_high_mark value, then, the number of outstanding requests must drop to this value before latency protection is disabled.
packet_size Specifies the size of packets in which data can be sent over 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.
bunker Specifies the bunker flag. The value can be either true or false.
bunker_target Specifies the bunker_target flag. The value can be either true or false.
Compression Specifies whether compression is enabled or disabled and as such takes the value of true or false respectively.
More Information
Replicator Log overflow protection - srlprot attribute
Setting replication attributes