IBM N Series, Implementation Manual

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2 Implementation Overview
front-end LUN or LUN:
The gateway can virtualize the storage provided by
third-party storage arrays and serve it up as LUNs to applications and customers
outside the gateway (for example, through iSCSI). Clients are unaware of where
such a LUN is stored. Data ONTAP software product guides refer to this type of
storage as a LUN. You can think about this type of storage as a
front-end LUN or
Data ONTAP-served LUN . It is not the same as an array LUN.
disks, disk shelves:
The terms disk and disk shelf in this document refer to
native storage connected to the gateway. These terms do not refer to disks or disk
shelves on a third-party storage array.
HA pair:
An HA pair is a pair of gateways configured to serve data for each
other if one of the two systems becomes impaired. In gateway documentation,
Data ONTAP documentation, and other information resources, HA pairs are
sometimes also referred to as clusters or active/active configurations.
native disks, native disk shelves:
Disks and disk shelves that are sold as
local storage for systems that run Data ONTAP software.
Other documents
with information
about disks
Use this guide in conjunction with other guides in the Data ONTAP and hardware
libraries that discuss setup and management of disks and disk shelves. In
particular, refer to the documents in the following table.
For information about... See...
Disk support, including supported
disk speeds, and disk capacity See the information for IBM N series
storage systems.
Installing the gateway in a rack or
system cabinet On new systems, this task is typically
performed by the factory. If you need
instructions, see the guide for your
cabinet.
Connecting a disk shelf to a
stand-alone gateway Hardware Installation and Setup
Overview for your platform
Connecting an HA pair to a disk shelf Data ONTAP High Availability
Configuration Guide
Step-by-step procedures for adding a
disk shelf The appropriate guide for your disk
shelf type.