![IBM Storwize V7000 Скачать руководство пользователя страница 423](http://html2.mh-extra.com/html/ibm/storwize-v7000/storwize-v7000_introduction-and-implementation-manual_3302597423.webp)
Chapter 9. IBM Flex System V7000 Storage Node Copy Services
403
Introduction to layers
From version 6.4.1, a concept called
layers
is used for IBM Flex System V7000 Storage
Node. The setting for the
layers
determine how IBM Flex System V7000 Storage Node
interacts with the other IBM Flex System V7000 Storage Node, IBM Storwize V7000 or IBM
SAN Volume Controller. Currently there are two layers: replication and storage.
The
replication layer
is used when you want to use IBM Flex System V7000 Storage Node
with one or more other IBM Flex System V7000 Storage Node, IBM Storwize V7000 and a
SAN Volume Controller is also a Remote Copy partner. The
storage layer
is the default mode
of operation for IBM Flex System V7000 Storage Node and IBM Storwize V7000, and is used
when you want to only remote copy from IBM Flex System V7000 Storage Node to another
IBM Flex System V7000 Storage Node or an IBM Storwize V7000. It is also used when
presenting storage to IBM Flex System V7000 Storage Node from an IBM Storwize V7000 as
external storage for it to manage.
The layer for IBM Flex System V7000 Storage Node can be switched by running
svctask
chsystem -layer replication
. Generally, switch the layer while your IBM Flex System V7000
Storage Node is not in production. This situation prevents potential disruptions, as layer
changes are not I/O tolerant.
Figure 9-55 shows the effect of layers on IBM Flex System V7000 Storage Node, IBM
Storwize V7000 and SAN Volume Controller partnerships.
Figure 9-55 The relationship of layers and SAN Volume Controller and Storwize V7000 partnerships
The
replication layer
allows an IBM Flex System V7000 Storage Node to be Remote Copy
partners with a SAN Volume Controller. The
storage layer
allows an IBM Storwize V7000 to
Remote Copy to an IBM Flex System V7000 Storage Node which is also configured to
storage layer,
or to function as external back-end storage for an IBM Flex System V7000
Storage Node which is configured to
replication layer
. An IBM Flex System V7000 Storage
Node cannot be in both layers at the same time.
Tip: Other IBM or third party storage devices licensed and virtualized behind the IBM SVC
can also be included in the copy services.
Содержание Storwize V7000
Страница 2: ......
Страница 12: ...x IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 18: ...xvi IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 20: ...xviii IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 176: ...156 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 208: ...188 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 332: ...312 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 476: ...456 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 530: ...510 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 664: ...644 IBM Flex System V7000 Storage Node Introduction and Implementation Guide...
Страница 669: ......