Promise Technology VTRAK M210i, Product Manual

Page: 115 / 318

Chapter 4: Management with WebPAM PROe
101
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.
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.
7. Click the Submit button.
The functions you enable here depend on whether the physical drives
support those functions. See “Viewing Physical Drive Information” on
page 101 to determine which functions a particular drive supports.
Viewing Physical Drive Information
To view physical drive information:
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 a Physical Drive icon.
Useful information provided here includes:
•
The location of the physical drive is highlighted in the Enclosure Front View
diagram.
• Operational Status – OK is normal. Can also show Rebuilding, Forced
Online, Forced Offline, Transition Running, PDM Running, Media Patrol
Running, Stale, PFA, Offline, or Dead.
• Configuration Status – The array to which the drive is assigned or its spare
designation, including Unconfigured, Stale, PFA, Global Spare, Dedicated
Spare, Revertible Global Spare, Revertible Dedicated Spare.
Adjustable Items
• Write Cache
• Read Look Ahead Cache
• Command Queuing