Product manual

Galaxy G3G12 / G3G16 Installation and Hardware Reference Manual
121 Section 4 Maintenance with GAM
4.22 Managing Physical Drives
Managing Physical Drives deals with the physical disk drives installed in the Galaxy3G subsystem
enclosure, including the following functions:
• Viewing a List of Physical Drives
• Identifying a Physical Drive
• Making Global Physical Drive Settings
• Viewing Physical Drive Information
• Viewing Physical Drive Statistics
• Making Physical Drive Settings
• Clearing Stale and PFA Conditions
• Forcing a Physical Drive Offline or Online
Viewing a List of Physical Drives
To view a list of physical drives in this enclosure:
1. Click the Subsystem
icon in Tree View.
2. Click the Enclosures icon.
3. Click the Enclosure
icon.
4. Click the Physical Drives
icon.
The list of physical drives appears in Management View.
Identifying a Physical Drive
To identify physical drive in the Galaxy3G subsystem enclosure:
1. Click the Subsystem
icon in Tree View.
2. Click the Enclosures icon.
3. Click the Enclosure
icon.
4. Click the Physical Drives
icon.
5. In Management View, click the physical drives in the graphic.
The location of the physical drive is highlighted in the Enclosure Front View diagram.
Making Global Physical Drive Settings
Global settings apply to all of the physical disk drives installed in the Galaxy3G subsystem enclosure. To
make global physical drive settings:
1. Click the Subsystem
icon in Tree View.
2. Click the Enclosures
icon.
3. Click the Enclosure icon.
4. Click the Physical Drives
icon.
5. Click the Global Settings tab in Management View.
6. Make the settings as needed.
For SATA drives, check the boxes to enable:
• Write Cache
• Read Look Ahead Cache
• Command Queuing (for disk drives that support Command Queuing)
• From the DMA Mode dropdown menu, select a DMA mode.
For SAS drives, check the boxes to enable:
• Write Cache
• Read Look Ahead Cache
• Command Queuing (for disk drives that support Command Queuing)