VERITAS Volume Manager 3.1 Administrator's Guide

Volume Manager Operations
Online Relayout
Chapter 3 99
To be eligible for layout transformation, mirrored volume plexes must be
identical in layout, with the same stripe width and number of columns.
See Table 3-1, “Supported Layout Transformations.”
Entries in Table 3-1, Supported Layout Transformations, include the
following:
• Yes —indicates that an Online Relayout operation is possible.
• No —indicates that the operation may be possible but you cannot use
Relayout.
• Numbers —indicate a brief description of the possible changes in that
particular layout transformation. See the following “Number
Descriptions”
•O perations —can be performed in both directions.
Number Descriptions
The numbers in Table 3-1, Supported Layout Transformations, describe
the Relayout operation as follows:
1. Changes the stripe width or number of columns.
2. Removes all of the columns.
Table 3-1Supported Layout Transformations
From/To Striped
Mirrore
d
Concatenate
d Mirrored
Regular
Mirrore
d
RAID-5 Concatenate
d
Striped
Striped
Mirrored
Yes
1
Yes
2
No
3
Yes
4
Yes
5
Yes
6
Concatenated
Mirrored
Yes
7
No
8
No
9
Yes
10
No
11
Yes
12
Regular
Mirrored
Yes
13
Yes
14
No
15
Yes
16
No
17
No
18
RAID-5 Yes
4
Yes
10
No
19
Yes
20
Yes
21
Yes
22
Concatenated Yes
5
No
11
No
17
Yes
21
No
23
Yes
24
Striped Yes
6
Yes
12
No
18
Yes
22
Yes
24
Yes
25