AMCC 720-0138-00 manual Configuring Units

Chapter 5. Configuring Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Configuring a New Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Configuration Options When Creating a Unit . . . . . . . . . . . . . . . . . . . . . . . .35 Creating a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Initializing (Formatting) and Partitioning Units . . . . . . . . . . . . . . . . . . . . . . .38 Creating a Hot Spare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Naming a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Setting Unit Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 Enabling and Disabling the Unit Write Cache . . . . . . . . . . . . . . . . . . . . . . .45 Setting Auto Verify for a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Setting Continue on Source Error During Rebuild . . . . . . . . . . . . . . . . . . . .47 Enabling and Disabling Queuing for a Unit . . . . . . . . . . . . . . . . . . . . . . . . .47 Setting the StorSave Profile for a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Changing An Existing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 RAID Level Migration (RLM) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 Changing RAID Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Expanding Unit Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Informing the Operating System of Changed Configuration . . . . . . . . . . . .53 Deleting a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Removing a Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Moving a Unit from One Controller to Another . . . . . . . . . . . . . . . . . . . . . . . . . .57 Adding a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Removing a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Rescanning the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

Chapter 6. Maintaining Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Checking Unit and Drive Status	61
Enclosure LED Status Indicators	63
Unit Statuses	63
Drive Statuses	64
About Degraded Units	65
About Inoperable Units	65
Alarms, Errors, and Other Events	66
Viewing Alarms, Errors, and Other Events	66
Downloading an Error Log	67
Viewing SMART Data About a Drive	67
Background Tasks	68
About Initialization	69
About Verification	70
Starting a Verify Manually	72
Rebuilding Units	73
Cancelling a Rebuild and Restarting It with a Different Drive	75
Setting Background Task Rate	75
Background Task Prioritization	76
Scheduling Background Tasks	76
Viewing Current Task Schedules	77
Turning On or Off Use of a Task Schedule	78
Removing a Task Schedule	79
Adding a New Task Schedule Slot	79
Selecting Self-tests to be Performed	80
Locating a Drive by Blinking Its LED	81

iv 3ware Serial ATA RAID Controller User Guide for the Power Mac G5