Hp XP Continuous Access Software Manuel d'utilisateur télécharger pdf (Page 76)

• Local array at the primary site

• Continuous Access XP Synchronous installed

• Continuous Access XP Synchronous P-VOL

• Local array at the Intermediate site

• Continuous Access XP Synchronous installed

• Continuous Access XP Journal installed

• Volume used as a Continuous Access XP (synchronous) S-VOL and a Continuous Access

XP Journal primary data volume

• Continuous Access XP Journal master journal volume

• Local array at the remote site

• Continuous Access XP Journal installed

• Continuous Access XP Journal secondary data volume

• Continuous Access XP Journal restore journal volume

Setup proce

dure

This sectio

n explains the procedure for setting up a 3DC cascading conﬁguration using Continuous

Access XP Synchronous and Continuous Access XP Journal.

1. Install Continuous Access XP Synchronous and Continuous Access XP Journal. Conﬁgure ports

and journa

lgroups.

2. Issue a re

quest for creating a Continuous Access XP Synchronous pair to the primary array where

Continuous Access XP Synchronous is installed.

3. Wait until the status of the Continuous Access XP Synchronous pair becomes PAIR.

4. Issue a re

quest for creating a Continuous Access XP Journal pair to the Continuous Access XP

Journal primary array.

When creating a Continuous Access XP Journal pair, ensure that you select a value from 1 to 3

as the mi

rror ID.

5. Wait until the status of the Continuous Access XP Journal pair becomes PAIR.

NOTE:

You must ensure that the Continuous Access XP Synchronous pair status changes to PAIR before the

Continuous Access XP Journal pair status changes to PAIR. If you made a request to a change the

Continuous Access XP Journal pair status to PAIR before the Continuous Access XP Synchronous pair

status

changes to PAIR, the request is rejected.

For more information about installing and using Continuous Access XP Synchronous, see the

HP StorageWorks Continuous Access XP user guide for the XP12000/XP10000/SVS200.Formore

information about Continuous Access XP Journal journal group conﬁguration, see Journal group

operations. For more information about port conﬁguration, see Conﬁguring port attributes.

Disaster recovery

If a disaster or failure occurs in the primary site in a 3DC cascading conﬁguration, you can use

Continuous Access XP Synchronous secondary volumes in the intermediate site to enable the intermediate

site to take over your business tasks. If a disaster or failure occurs in the primary site, you must ﬁrst

transfer your business tasks from the primary site to the intermediate site.

To transfer your business tasks to the secondary site:

1. Check the consistency of the Continuous Access XP Synchronous S-VOL in the intermediate site.

2. Use RAID Manager XP to execute the horctakeover command on the Continuous Access XP

Synchronous pair that exists between the primary and intermediate sites.

Continuous Access XP Journal operations requirements and restrictions

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Hp XP Continuous Access Software Manuel d'utilisateur Page 76

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