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23-7
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
Chapter 23 Configuring Intelligent Storage Services
SANTap
SANTap
The SANTap feature allows third party data storage applications, such as long distance replication and
continuous backup, to be integrated into the SAN. The protocol-based interface that is offered by
SANTap allows easy and rapid integration of the data storage service application because it delivers a
loose coupling between the application and an SSM, thereby reducing the effort needed to integrate
applications with the core services being offered by the SSM. See Figure 23-1.
Figure 23-1 Integrating Third-Party Storage Applications in a SAN
You can use SANTap to remove your appliance-based storage applications from the primary data path
in your SAN. Removing these applications from the primary data path prevents the applications from
compromising the security, availability, and performance of your SAN. SANTap copies the data at line
speed and makes it available to other storage applications, isolating these storage applications from
affecting your SAN while maintaining the integrity of the data the storage applications need.
SANTap operates in three modes:
• Transparent mode
• Proxy mode-1
• Proxy mode-2
Targets
Iniatiators
Copy of
primary I/O
Appliance
SAN
Initator Target I/O
= Data trap
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