US 2018/0121114 A1 · VALIDATION OF STORAGE VOLUMES THAT ARE IN A PEER TO PEER REMOTE COPY RELATIONSHIP

Abstract

A peer to peer remote copy operation is performed between a primary storage controller and a secondary storage controller, to establish a peer to peer remote copy relationship between a primary storage volume and a secondary storage volume. Subsequent to indicating completion of the peer to peer remote copy operation to a host, a determination is made as to whether the primary storage volume and the secondary storage volume have identical data, by performing operations of staging data of the primary storage volume from auxiliary storage of the primary storage controller to local storage of the primary storage controller, and transmitting the data of the primary storage volume that is staged, to the secondary storage controller for comparison with data of the secondary storage volume stored in an auxiliary storage of the secondary storage controller.

Claims19

Dependent claims

1-20. (canceled)

A system, comprising:

a memory;
and
a processor coupled to the memory, wherein the processor performs operations, the operations performed by the processor comprising:
in response to indicating to a host a completion of a peer to peer remote copy operation between a primary storage controller and a secondary storage controller, staging data of a primary storage volume from an auxiliary storage of the primary storage controller to a local storage of the primary storage controller;
and
transmitting the data of the primary storage volume that is staged, to the secondary storage controller, for comparison with data of a secondary storage volume stored in an auxiliary storage of the secondary storage controller to determine whether the primary storage volume and the secondary storage volume have identical data.

3 more elements

A computer program product, the computer program product comprising a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to perform operations, the operations comprising:

in response to indicating to a host a completion of a peer to peer remote copy operation between a primary storage controller and a secondary storage controller, staging data of a primary storage volume from an auxiliary storage of the primary storage controller to a local storage of the primary storage controller;
and
transmitting the data of the primary storage volume that is staged, to the secondary storage controller, for comparison with data of a secondary storage volume stored in an auxiliary storage of the secondary storage controller to determine whether the primary storage volume and the secondary storage volume have identical data.

Dependencies are inferred from the claim text.

Facts

Application

15/826,360Filed 29 Nov 2017

Priority

27 Oct 2016

Published

3 May 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06F 3/0619
Improving the reliability of storage systems: in relation to data integrity, e.g. data losses, bit errors
G06F 3/065
Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems: replication mechanisms
G06F 3/067
Adopting a particular infrastructure: distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
G06F
Computing and data processing

Validation of storage volumes that are in a peer to peer remote copy relationship

Life of this patent

Validation of storage volumes that are in a peer to peer remote copy relationship

Life of this patent

Abstract

Claims19