Setting the attributes

Use the vxedit set command to set the attributes for the local RLINK, RVG, and the SFW objects. The attribute names specify the field that needs to be set within the specified RLINK or RDS.

The attributes that the vxedit set command sets for the RLINK are similar to the attributes that the vxrlink set command sets.

Syntax for vxedit set command

vxedit [-PV] [-g<DynamicDiskGroupName>] set attribute=value<Object>

The following table lists the attributes for the vxedit set command.

Table: Attributes for vxedit set command

Attribute

Description

comment

Specifies a comment that is displayed against the SFW objects such as a volume, plex, subdisk, disk media, and disk group. These comments are useful if you want to display some additional information for these objects. The comment size cannot exceed 40 bytes.

Primary

Specifies a boolean value true or false.

If set to true, then the RVG is considered the Primary RVG and writes to this RVG are replicated to any RLINK with which it is associated and attached. If set to false (default), then the RVG is a Secondary RVG and receives writes from the Primary RVG.

Note:

Before setting this attribute, ensure that the RVG is stopped, that is, data access has been disabled.

synchronous

Specifies the mode of replication.

Rsrlprot

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, then by default, 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 1 Mbps (Megabits per second). 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 NAS, 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.

remote_rlink

Specifies the name of the remote RLINK.

remote_dg

Specifies the disk group name of the remote RLINK.

More Information

Setting the RLINK attributes