Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

The movepair operation moves both the R1 and R2 sides of devices from one SRDF group to another. The current invalid track counters on both R1 and R2 are preserved, so resynchronization is required.

Syntax

Move SRDF pairs using a device group, storage group, or device file:

symrdf movepair -sid SID -g DgName -rdfg RDFgroup -new_rdfg NewRDFgroup
symrdf movepair -sid SID -sg SgName -rdfg RDFgroup -new_rdfg NewRDFgroup
symrdf movepair -sid SID -f FileName -rdfg RDFgroup -new_rdfg NewRDFgroup

Move SRDF pairs provides details on the symrdf movepair command for device files.

Options

-exempt

Allows devices to be moved into an active SRDF/A session without affecting the state of the session or requiring that other devices in the session be suspended.

Restrictions

The movepair operation has the following restrictions:

• The -new_rdfg NewRDFgroup argument and value are required.
• A device cannot move when it is enabled for SRDF consistency.
• A device cannot move if it is in asynchronous mode when an SRDF/A cleanup or restore process is running.
• When moving one mirror of a concurrent R1 or an R21 device to a new SRDF group, the destination SRDF group must not be the same as the one supporting the other SRDF mirror.
• When issuing a full movepair operation, the destination SRDF group must connect the same two arrays as the original SRDF group.
• If the destination SRDF group is in asynchronous mode, the SRDF group type of the source and destination group must match. In other words, in asynchronous mode, devices can only be moved from R1 to R1, or from R2 to R2.
• Always supply the -exempt option if the destination SRDF group supports an active SRDF/A session.
• The device pairs being moved must have been suspended using the -exempt option if the original SRDF group supports an active SRDF/A session.

Examples

To move pairs in a file from SRDF group 10 to SRDF group 15:

symrdf movepair -sid 123 -file devicefile -rdfg 10 -new_rdfg 15

The first device in each line of the device file moves to the new SRDF group. The second device in each line of the file moves to the remote SRDF group that is paired with the new SRDF group.