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EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Hardware
GigE IPv4/v6 (IPsec
capable) director
The GigE IPv4/v6 (IPsec capable) channel director provides support
for the latest Internet Protocol standards, including IPsec (Internet
Protocol Security) and IPv6. The embedded line-grade encryption
co-processor provides strong security without degrading
performance. Preshared encryption keys simplify management while
maintaining security for data in transit.
These directors can co-exist in the same system with any existing
DMX-3 channel directors. With the new director, IPsec can be enabled
on a port-by-port basis. IPsec is enabled through a separately
purchased software license.
The IP Stack version can be similarly configured per port. No
additional software license is required.
The number of IPsec sessions will be limited to 100 per port. IPsec can
be enabled for SRDF connections. IPsec enabled and IPsec disabled
channel directors can co-exist in the same Symmetrix.
“IPsec security features” on page 187 contains additional
information on IPsec.
iSCSI channel
directors
The Symmetrix DMX-3 MPCD, through mezzanine card technology,
supports iSCSI channel connectivity by way of Gigabit Ethernet
(GigE) hardware for the Symmetrix DMX systems. The iSCSI channel
director supports iSCSI channel connectivity to IP networks and to
iSCSI-capable open systems server systems for block storage transfer
between hosts and storage. The primary applications are storage
consolidation and host extension for stranded servers and
departmental workgroups. Symmetrix GigE remote channels for
SRDF transfer data at speeds up to 1 Gb/s. The Symmetrix iSCSI
director provides up to four 1 Gb/s Ethernet ports and connects
using LC connectors.
The iSCSI directors support the iSNS protocol, a mechanism that
provides Naming and Discovery services for iSCSI initiators. The
iSNS server information is configured in the Symmetrix IMPL file for
each iSCSI director. Each iSCSI director must register itself with the
iSNS server, which provides:
◆ A mechanism to query iSNS server to find other hosts/targets
◆ Support for State Change Notification and Status Inquiry
The iSCSI director supports TCP/IP protocols and function layers. It
is fully compatible with the SRDF protocols and other Symmetrix
DMX directors, drives, software, and protection schemes.
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