Command Conventions; Formatting Conventions - IBM N6270 Hardware And Service Manual

Disk Any hard disk drive
Disk shelf or shelf
Any storage expansion unit containing hard disk drives.
ESH The controller module of Fibre Channel disk storage expansion units.
IOM The Input/Output module of SAS disk storage expansion units.
Loop or Fibre-Channel Arbitrated Loop
One or more daisy-chained Fibre Channel storage expansion units
connected to an N series storage system.
Node The system controller module that executes the software on an N series
system. There is one node in single-controller models; there are two nodes
in active/active or high availability models.
Stack or SAS stack
A stack of one or more SAS storage expansion units using IOM modules
connected to the storage system. The maximum number of storage
expansion units in a stack of storage expansion units and the number of
storage expansion unit stacks in a configuration are dependent on the type
of storage system.

Command conventions

You can enter commands on the system console or from any client that can obtain
access to the storage system using a Telnet session. In examples that illustrate
commands executed on a UNIX workstation, the command syntax and output
might differ, depending on your version of UNIX.

Formatting conventions

The following table lists different character formats used in this guide to set off
special information.
Formatting convention
Italic type
Monospaced font
Bold monospaced font
Type of information
v Words or characters that require special
attention.
v Placeholders for information you must
supply. For example, if the guide requires
you to enter the fctest adaptername
command, you enter the characters fctest
followed by the actual name of the
adapter.
v Book titles in cross-references.
v Command and daemon names.
v Information displayed on the system
console or other computer monitors.
v The contents of files.
Words or characters you type. What you
type is always shown in lowercase letters,
unless your program is case-sensitive and
uppercase letters are necessary for it to work
properly.
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