Hitachi AMS 2100, Руководство по оборудованию

Страница: 14 / 306

xiv
Preface
Hitachi AMS 2100/2300 Storage System Hardware Guide
Convention for storage capacity values
Physical storage capacity values (e.g., disk drive capacity) are calculated
based on the following values:
Logical storage capacity values (e.g., logical device capacity) are calculated
based on the following values:
Convention Description
Bold Indicates text on a window, other than the window title, including
menus, menu options, buttons, fields, and labels. Example: Click
OK.
Italic
Indicates a variable, which is a placeholder for actual text provided
by the user or system. Example: copy source-file target-file. Note:
Angled brackets (< >) are also used to indicate variables.
screen text Indicates text that is displayed on screen or entered by the user.
Example: # pairdisplay -g oradb
< > angled
brackets Indicates a variable, which is a placeholder for actual text provided
by the user or system. Example: # pairdisplay -g <group>
Note: Italic font is also used to indicate variables.
[ ] square
brackets Indicates optional values. Example: [ a | b ] indicates that you can
choose a, b, or nothing.
{ } braces Indicates required or expected values. Example: { a | b } indicates
that you must choose either a or b.
| vertical bar Indicates that you have a choice between two or more options or
arguments. Examples:
[ a | b ] indicates that you can choose a, b, or nothing.
{ a | b } indicates that you must choose either a or b.
underline Indicates the default value. Example: [ a | b ]
Physical capacity unit Value
1 KB 1,000 bytes
1 MB 1,000 KB or 1,000
2
bytes
1 GB 1,000 MB or 1,000
3
bytes
1 TB 1,000 GB or 1,000
4
bytes
1 PB 1,000 TB or 1,000
5
bytes
1 EB 1,000 PB or 1,000
6
bytes
Logical capacity unit Value
1 block 512 bytes
1 KB 1,024 (2
10
) bytes
1 MB 1,024 KB or 1024
2
bytes
1 GB 1,024 MB or 1024
3
bytes
1 TB 1,024 GB or 1024
4
bytes
1 PB 1,024 TB or 1024
5
bytes
1 EB 1,024 PB or 1024
6
bytes