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154 DS8000 Series: Concepts and Architecture
8.5.2 Remote support connection requirements
You must meet the requirements for the modem and for an outside connection if you will use
remote support.
The DS8000 S-HMC contains a modem to take advantage of remote support, which can
include outbound support (call home) or inbound support (remote service performed by an
IBM next level support representative). For each S-HMC, you must provide the following
equipment close enough to the S-HMC to support the modem connection:
One analog telephone line for initial setup
A telephone cable to connect the modem to a telephone jack
To enable remote support you must allow an external connection, such as one of the
following:
A telephone line
An internet connection through your firewall that allows IBM to use a VPN connection to
your S-HMC.
8.5.3 Remote power control requirements
Remote power control allows you to control the power of your storage complex through the
DS Storage Manager (running on the S-HMC).
There are several settings for remote power control. Only the remote zSeries power control
setting requires planning on your part.
The remote zSeries power control setting allows you to power on and off a room from one
zSeries interface. If you use the remote zSeries power control setting, you must meet the
following requirements:
You must order the remote zSeries power control feature.
You can allow up to four zSeries remote power-control interfaces.
8.5.4 SAN requirements
A Fibre Channel storage area network (SAN) is a specialized, high-speed network that
attaches servers and storage devices. With a SAN, you can perform an any-to-any
connection across the network using interconnecting elements such as routers, gateways,
hubs, and switches.
For a DS8000 configuration, you can use SANs to attach storage units and to attach hosts to
the storage unit.
When you connect your DS8000 storage units to a SAN, you must meet the following
requirements:
When a SAN is used to attach both disks and hosts to the storage unit, any storage device
that is managed by the storage unit must be visible to the host systems.
When concurrent device adapters and host adapter operations are supported through the
same I/O port, the SAN attached to the port must provide both host and device access.
Fibre channel host adapters must be configured to operate in a point-to-point mode fabric
topology. See the
IBM TotalStorage DS8000 Host Systems Attachment Guide,
SC26-7628, for more information.