VTL backup method and VTL nodes

A node and backup technology, applied in the field of communication, can solve the problems of unavailability and reduce the link availability of VTL nodes, and achieve the effect of high link availability, improving link availability and ensuring balance.

Active Publication Date: 2013-11-27
浙江海宁经编产业园区开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the process of carrying out the above fault takeover, the inventor found that when a link from VTL node A to the backup server fails and other links are available, VTL node B will take over all services on the VTL node A to itself This causes the link available on VTL node A to also terminate its service and become unavailable, which reduces the availability of the VTL node link

Method used

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  • VTL backup method and VTL nodes
  • VTL backup method and VTL nodes
  • VTL backup method and VTL nodes

Examples

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Embodiment 1

[0037] The embodiment of the present invention provides a VTL backup method, such as figure 2 As shown, the method includes the following steps:

[0038] 201. When the VTL node detects a faulty port, it accesses the cluster file system to obtain the normal port on the VTL node where the faulty port is located, the globally unique port name WWPN of the faulty port, and the session session connection corresponding to the WWPN. Virtual device information.

[0039] Each VTL node provided by the embodiment of the present invention is equipped with a cluster file system, and the file cluster system can support data sharing between each VTL node, that is, when a certain VTL node accesses the cluster file system of this node, it can obtain Data stored by other VTL nodes. In the embodiment of the present invention, the cluster file system in each VTL node stores the WWPN of the port of each VTL node in the backup system and its corresponding session connection, the virtual device in...

Embodiment 2

[0052] The embodiment of the present invention provides a VTL backup method, such as image 3 As shown, the method includes the following steps:

[0053] 301. The VTL node creates a new virtual device, accesses the cluster file system to obtain a session connection on an idle port, and allocates the new virtual device to the session connection on the idle port.

[0054] The session connection on the idle port includes the session connection with the fewest virtual devices running on the session connection on each port in each VTL node of the backup system.

[0055] Because the VTL nodes in the backup system apply the cluster file system, and the data of each VTL node is shared, the WWPN of the port of each VTL node in the backup system is stored in the cluster file system, the virtual device under the port and the state identification of the port, so The above status flags are used to identify whether the port is a normal port or a faulty port.

[0056] The session connectio...

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Abstract

The embodiment of the invention provides a VTL backup method and VTL nodes, and relates to the field of communication. The VTL backup method and the VTL nodes can improve usability of a VTL node link. The VTL backup method comprises the steps that when a fault port is detected, a cluster file system is visited to obtain a normal port in the VTL node where the fault port is located, the WWPN of the fault port and virtual device information running on session connection corresponding to the WWPN; then the WWPN of the fault port is drifted to the normal port; according to the WWPN drifted to the normal port, the session connection between the normal port and a backup server port is created; a virtual device below the fault port is allocated to the session connection, the session connection enables the virtual device below the fault port to be mounted to a backup server, and the backup server enables the virtual device to be operated through the session connection to carry out data backup.

Description

technical field [0001] The present invention relates to the communication field, in particular to a VTL (Virtual tape library, virtual tape library) backup method and a VTL node. Background technique [0002] When VTL is used for backup, its network architecture is as follows: figure 1 As shown, it includes: a backup server 11, a fiber optic switch 12, two paired VTL nodes A131, VTL nodes B132 and RAID14 (Redundant Array of Independent Disks, redundant array of independent disks). Several virtual tape libraries, virtual tape drives, and virtual tapes are created in the two VTL nodes. [0003] The backup server 11 is physically connected to the VTL node A131 and the VTL node B132 respectively through the optical fiber switch 12, and the ports T1 and T2 of the VTL node A respectively correspond to a WWPN (World Wide Port Name, globally unique port name). If a virtual tape drive A is created on the VTL node A, then the VTL node A131 will allocate a session connection on a por...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24G06F9/455
Inventor 吴开迪
Owner 浙江海宁经编产业园区开发有限公司
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