Cisco Cisco MDS 9000 SANTap Datenbogen
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Cisco MDS 9000 SANTap
Product Overview
Cisco
®
MDS 9000 SANTap is one of the intelligent fabric services offered by the Cisco MDS 9000 Family. Cisco
MDS 9000 SANTap operates as a tap in the SAN, providing a reliable copy of storage write operations to a partner
appliance. Cisco MDS 9000 SANTap enables partner applications to provide data continuity, data protection, online
data migration, storage performance, and service-level agreement (SLA) monitoring without the drawbacks of in-
band data-path or out-of-band host-based devices.
Cisco MDS 9000 SANTap enables customers to deploy EMC RecoverPoint, a single product solution for local data
protection, remote replication, and disaster recovery. EMC RecoverPoint with Cisco MDS 9000 SANTap can
replicate heterogeneous storage without compromising the integrity, availability, and performance of the I/O
operations between the host and the primary target (Figure 1).
Figure 1. Cisco MDS 9000 SANTap Enabling EMC RecoverPoint
EMC RecoverPoint offers a single solution for local data protection, remote replication, and disaster recovery. Based
on scalable out-of-band appliances that use intelligent write splitting, EMC RecoverPoint can be deployed in three
configurations: continuous data protection (CDP), continuous remote replication (CRR), and concurrent local and
remote (CLR) data protection of the same data with recovery to any-point-in-time.
EMC RecoverPoint CDP provides block-level local replication between logical unit numbers (LUNs) in the same SAN
that reside in one or more arrays at the same site and enables recovery from a local failure or data corruption. CDP
technology logs every write operation for later recovery to any point in time.
EMC RecoverPoint CRR provides block-level asynchronous replication between LUNs in the two different SANs
using near-CDP technology that journals groups of write operations for later recovery to significant points in time.
The local CDP copy enables recovery from a local failure or data corruption, whereas the CRR copy enables the
LUNs to be replicated to a remote site where they can be brought online with little downtime in case of a major
disaster.