EMC CX600 Configuration Guide - Page 142

Remote Backup of Snapped, Mirrored Disk Using FC/IP

Page 142 highlights

February 3, 2003 EMC CLARiiON Open Systems Configuration Guide Remote Backup of Snapped, Mirrored Disk Using FC/IP This topology makes use of disk-to-tape backups of a snapshot of a mirror maintained over a extended Fibre Channel SAN. Backup is done from the remote mirror of the local data. No bulk data transfer is needed between the remote sites (once the mirrors are synchronized). Bulk backup occurs only between the disk mirror at the remote site and a disk or tape at the remote site. MirrorView provides the mechanism for backup, expanding on its usefulness beyond disaster recovery. This backup topology uses a replication infrastructure in conjunction with the MirrorView application and a technique for controlled splitting of the mirrors. This technique involves • Using EMC MirrorView to establish or synchronize a mirror of the production data • Intentionally splitting that mirror at a desired point in time • Using SnapView to create from the mirror a source for the backup process • Re-synchronizing the mirror in preparation for the next backup Application Server Legend Source Data Backup Data Backup Control Data Backup Server SAN FC/IP FC/IP SAN LUN LUN LUN Source data Remote mirror of source data LUN LUN LUN Snapshot of LUN source data LUN LUN LUN LUN LUN LUN LUN LUN LUN CLARiiON Storage System with MirrorView CLARiiON Storage System with MIrrorView and SnapView Fibre-Channel-to-SCSI Bridge Tape Library Tape Drive Tape Drive Tape Drive Document Rev 19 Page 142 EMC Confidential

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February 3, 2003
EMC CLARiiON Open Systems Configuration Guide
Document Rev
19
Page 142
EMC Confidential
Remote Backup of Snapped, Mirrored Disk Using FC/IP
This topology makes use of disk-to-tape backups of a snapshot of a mirror maintained over a extended Fibre Channel
SAN. Backup is done from the remote mirror of the local data. No bulk data transfer is needed between the remote
sites (once the mirrors are synchronized). Bulk backup occurs only between the disk mirror at the remote site and a
disk or tape at the remote site. MirrorView provides the mechanism for backup, expanding on its usefulness beyond
disaster recovery.
This backup topology uses a replication infrastructure in conjunction with the MirrorView application and a technique
for controlled splitting of the mirrors. This technique involves
Using EMC MirrorView to establish or synchronize a mirror of the production data
Intentionally splitting that mirror at a desired point in time
Using SnapView to create from the mirror a source for the backup process
Re-synchronizing the mirror in preparation for the next backup
SAN
Fibre-Channel-to-SCSI
Bridge
CLARiiON Storage System
with MirrorView
LUN
LUN
LUN
LUN
LUN
LUN
LUN
LUN
Legend
Backup Data
Backup Control Data
Tape
Drive
Tape
Drive
Tape
Drive
Tape Library
CLARiiON Storage System
with MIrrorView and SnapView
FC/IP
FC/IP
Backup
Server
SAN
Source Data
Application
Server
Source data
Remote mirror
of source data
Snapshot of
source data
LUN
LUN
LUN
LUN
LUN
LUN
LUN
LUN