Asus SCSI 320-0 Global Array Manager Transition Tool - Page 76

Using Auto Configuration, Configuration Guidelines, Logical Drive Settings, User Actions

Page 76 highlights

Using Auto Configuration Configuration Guidelines In Auto Configuration, MegaRAID examines the physical drives connected to it and automatically configures them into arrays and logical drives. MegaRAID uses the following configuration guidelines in the following sequence: Step Action 1 Gather drives with the same capacity into groups of five, four, or three. These groups become arrays associated with RAID level 5 logical drives. 2 Gather pairs of drives with the same capacity together. These pairs become arrays associated with RAID 1 logical drives. 3 Configure any remaining single disk drives as arrays associated with RAID 0 logical drives. Logical Drive Settings The logical drive settings will be: Parameter Stripe size Write Policy Read Policy Cache Policy Spanning Setting 64 KB Write-through Readahead Direct I/O Off The write policy, read policy, and cache policy can be changed after configuration is complete. User Actions Perform the following steps when using auto configuration: Step Action 1 Designate hot spares (optional, but if chosen, should be done first). 2 Choose Configure from the MegaRAID Manager main menu. 3 Choose Auto Configuration from the Configure menu and respond to the confirmation prompt. The logical drives that result from Auto Configuration are displayed on the screen with a save prompt. Choose Yes to save the configuration. 4 If you chose Yes at the space prompt, initialize the logical drives. See page 79 for additional information. 68 MegaRAID Configuration Software Guide

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MegaRAID Configuration Software Guide
68
Using Auto Configuration
Configuration Guidelines
In Auto Configuration, MegaRAID examines the physical drives
connected to it and automatically configures them into arrays and logical drives.
MegaRAID uses the following configuration guidelines in the following
sequence:
Step
Action
1
Gather drives with the same capacity into groups of five, four, or three.
These groups become arrays associated with RAID level 5 logical drives.
2
Gather pairs of drives with the same capacity together. These pairs
become arrays associated with RAID 1 logical drives.
3
Configure any remaining single disk drives as arrays associated with
RAID 0 logical drives.
Logical Drive Settings
The logical drive settings will be:
Parameter
Setting
Stripe size
64 KB
Write Policy
Write-through
Read Policy
Readahead
Cache Policy
Direct I/O
Spanning
Off
The write policy, read policy, and cache policy can be changed after
configuration is complete.
User Actions
Perform the following steps when using auto configuration:
Step
Action
1
Designate hot spares (optional, but if chosen, should be done first).
2
Choose Configure from the MegaRAID Manager main menu.
3
Choose Auto Configuration from the Configure menu and respond to the
confirmation prompt.
The logical drives that result from Auto Configuration are displayed on the
screen with a save prompt. Choose
Yes
to save the configuration.
4
If you chose
Yes
at the space prompt, initialize the logical drives. See page
79 for additional information.