storage coredr lun replicate-to
Creates a copy of existing data on the primary data center and transfers it to a replica LUN on the secondary data center.
Syntax
[failover-peer] storage coredr lun {alias <lun-alias> | site-serial <lun-serial>} replicate-to <secondary-lun-serial> [first-sync {full | none}]
Parameters
failover-peer | Performs the command on the failover peer of the current appliance. If the failover peer is unavailable, the changed configuration is automatically applied when the appliance returns to service. You can run failover-peer commands only on a Core appliance in ActiveSolo failover state. |
alias <lun-alias> | Specifies the alias for the replicable LUN. |
site-serial <lun-serial> | Specifies the site-specific serial number for the LUN. |
<secondary-lun-serial> | Serial number of the LUN at the secondary data center. |
first-sync | Configures the first-sync type for the replication between the primary and replica LUNs. • full—Block-by-block replication that can take longer, depending on the size of the LUN. • none—Does not synchronize between data centers. Use this option if the LUNs are already block-for-block identical in both data centers (that is, the LUNs are empty or unformatted). It is important that only the product has access to the data center LUNs in order to ensure block-for-block consistency between the primary and secondary data centers. |
Usage
After you have set up the witness using the
storage coredr witness set command, use
storage coredr lun replicate-to (this command) to set up the replica LUNs and start the first sync.
Replica LUNs should be equal in size or larger than the primary LUNs; however, some storage arrays do not allocate exact sizes. For this reason, Core will allow a small size leeway for the replica LUN. Possible candidates for replicas are auto-completed and displayed.
To view a list of primary and replica LUNs and their serial numbers on each data center, use the
storage coredr edge command.
Example
Core02 # failover-peer storage coredr lun alias lun1 replicate-to P3KRP50GDleg first-sync none
Core01 # storage coredr lun site-serial P3KRP50GDleg replicate-to P3KRP4zabEvv first-sync full
Product
Core