EMC CX600 Configuration Guide - Page 142
Remote Backup of Snapped, Mirrored Disk Using FC/IP
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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