User guide
Table Of Contents
- Title Page
- Table of Contents
- About this User Guide
- Introducing the 3ware® SATA RAID Controller
- Getting Started with Your 3ware RAID Controller
- First-Time RAID Configuration Using 3BM
- Driver Installation
- Driver Installation Under Windows
- Driver Installation Under Linux
- Obtaining 3ware Linux Drivers
- Driver Installation Under Red Hat Linux or Fedora Core 5
- Materials required
- Creating a Red Hat Linux Driver Diskette
- Installing the 3ware Kernel Driver Module while Installing Red Hat Linux on a New Unit
- Installing the 3ware Kernel Driver Module on a Red Hat or Fedora Core Linux System that Boots From a Different Device
- About Variables In the Kernel Driver Module Installation Instructions
- Driver Installation Under SuSE Linux
- Compiling a 3ware Driver for Linux
- Driver Installation Under FreeBSD
- 3ware BIOS Manager 2 (3BM 2) Introduction
- 3DM 2 (3ware Disk Manager) Introduction
- Configuring Your Controller
- Configuring Units
- Configuring a New Unit
- Creating a Hot Spare
- Naming a Unit
- Setting Unit Policies
- Changing An Existing Configuration by Migrating
- Deleting a Unit
- Removing a Unit
- Moving a Unit from One Controller to Another
- Adding a Drive
- Removing a Drive
- Rescanning the Controller
- Maintaining Units
- Checking Unit and Drive Status through 3DM
- About Degraded Units
- About Inoperable Units
- Alarms, Errors, and Other Events
- Background Tasks
- Scheduling Background Tasks
- Locating a Drive by Blinking Its LED
- Maintaining Your Controller
- Determining the Current Version of Your 3ware Driver
- Updating the Firmware and Driver
- Downloading the Driver and Firmware
- Updating the Firmware Through 3DM 2
- Updating the 3ware Driver and Firmware Under Windows
- Using the Update Utility With Multiple Controllers
- Updating the 3ware Driver Under Windows XP
- Updating the 3ware Driver Under Red Hat or Fedora Core
- Updating the 3ware Driver Under SuSE
- Updating the 3ware Driver Under FreeBSD
- Updating the Firmware Under Linux and FreeBSD
- Viewing Battery Information
- Testing Battery Capacity
- 3DM 2 Reference
- Troubleshooting
- Appendices
- Index
Chapter 12. Troubleshooting
236 3ware Serial ATA RAID Controller User Guide
• A RAID 10 unit with both drives missing from one of the RAID 1
subunits.
• A RAID 6 unit with three or more drives missing.
Note: The controller only generates this message if the unit is missing drives
for more than 20 seconds. This allows a hot-swap of a drive to be completed
without generating this error.
Action
The unit is no longer available for use. Return all missing drives to the unit. If
the drives are physically present, check all data and power connections.
CAUTION: Do not delete the inoperable unit and recreate it as this will
overwrite the data and make data recovery very difficult.
You may wish to contact technical support at http://www.3ware.com/support.
See Also
“About Inoperable Units” on page 138.
001F Unit Operational
Event Type
Information
Cause
Drive insertion caused a unit that was inoperable to become operational again.
Any data that was on that unit will still be there. This message is only sent if
the unit was inoperable for more than 20 seconds. That means that if the hot-
swap of a drive occurred within 20 seconds, messages are not generated.
Action
None Required. The unit is available for use.
0021 Downgrade UDMA mode
Event Type
Warning
Cause
The 3ware RAID controller has downgraded the UDMA transfer rate between
the controller and the ATA disk drives. This message only applies to parallel
ATA and certain legacy serial ATA drives.