Product manual
Table Of Contents
- VTrak Product Manual
- Contents
- Chapter 1: Introduction to VTrak
- Chapter 2: VTrak Installation
- Unpacking the VTrak
- Mounting VTrak in a Rack
- Installing Disk Drives
- Making Management and Data Connections
- Setting Up Serial Cable Connections
- Connecting the Power
- Chapter 3: VTrak Setup
- Chapter 4: Management with WebPAM PROe
- Logging into WebPAM PROe
- Choosing a Language
- Perusing the Interface
- Logging out of WebPAM PROe
- Working with the Storage Network
- Working with Subsystems
- Viewing Subsystem Information
- Saving a System Service Report
- Setting an Alias for the Subsystem
- Setting Redundancy for the Subsystem
- Setting Cache Mirroring for the Subsystem
- Setting Subsystem Date and Time
- Making NTP Settings
- Synchronizing with a NTP Server
- Viewing the Runtime Event Log
- Saving the Runtime Event Log
- Clearing the Runtime Event Log
- Viewing NVRAM Events
- Saving NVRAM Events
- Clearing NVRAM Events
- Viewing Current Background Activities
- Making Background Activity Settings
- Running Background Activities
- Running Media Patrol
- Running PDM
- Viewing Scheduled Activities
- Scheduling an Activity
- Deleting a Scheduled Activity
- Viewing Lock Status
- Setting the Lock
- Renewing the Lock
- Releasing the Lock
- Managing Users
- Managing the Network Connection
- Managing Fibre Channel Connections
- Managing SAS Connections
- Managing Storage Services
- Monitoring Performance
- Managing Software Services
- Exporting the User Database
- Exporting a Configuration Script
- Importing a User Database
- Importing a Configuration Script
- Updating the Firmware
- Viewing Flash Image Information
- Restoring Factory Defaults
- Clearing Statistics
- Saving a System Service Report
- Shutting Down the Subsystem
- Starting Up After Shutdown
- Restarting the Subsystem
- Managing Controllers
- Managing Enclosures
- Managing Physical Drives
- Managing UPS Units
- Managing Disk Arrays
- Viewing a List of Disk Arrays
- Creating a Disk Array
- Creating a Disk Array - Automatic
- Creating a Disk Array - Express
- Creating a Disk Array - Advanced
- Deleting a Disk Array
- Viewing Disk Array Information
- Making Disk Array Settings
- Creating a Logical Drive
- Deleting a Logical Drive
- Migrating a Disk Array
- Rebuilding a Disk Array
- Running Media Patrol on a Disk Array
- Running PDM on a Disk Array
- Transitioning a Disk Array
- Preparing a Disk Array for Transport
- Managing Logical Drives
- Managing Spare Drives
- Working with the Logical Drive Summary
- Chapter 5: Management with the CLU
- Initial Connection
- Running Quick Setup
- Managing the Subsystem
- Managing the Controllers
- Managing the Enclosure
- Viewing the Enclosures Summary
- Viewing Enclosure Information
- Making Enclosure Settings
- Viewing FRU VPD Information
- Viewing Power Supply Status
- Locating a Power Supply
- Viewing Cooling Unit Status
- Viewing Temperature Sensor Status
- Viewing Voltage Sensor Status
- Checking the Batteries
- Reconditioning a Battery
- Locating an Enclosure
- Viewing Enclosure Topology
- Managing Physical Drives
- Managing Disk Arrays
- Viewing a List of Disk Arrays
- Creating a Disk Array
- Creating a Disk Array - Automatic
- Creating a Disk Array - Express
- Creating a Disk Array - Advanced
- Deleting a Disk Array
- Viewing Disk Array Information
- Setting an Alias for a Disk Array
- Accepting an Incomplete Array
- Enabling Media Patrol and PDM on a Disk Array
- Preparing the Disk Array for Transport
- Rebuilding a Disk Array
- Migrating a Disk Array
- Running PDM
- Running Transition on a Disk Array
- Locating a Disk Array
- Creating a Logical Drive
- Deleting a Logical Drive
- Managing Spare Drives
- Managing Logical Drives
- Managing the Network Connection
- Managing Fibre Channel Connections
- Managing SAS Connections
- Managing Background Activity
- Working with the Event Viewer
- Working with LUN Mapping
- Managing UPS Units
- Managing Users
- Working with Software Management
- Flashing through TFTP
- Viewing Flash Image Information
- Clearing Statistics
- Restoring Factory Defaults
- Shutting Down the Subsystem
- Starting Up After Shutdown
- Restarting the Subsystem
- Making Buzzer Settings
- Chapter 6: Maintenance
- Updating the Firmware in WebPAM PROe
- Updating the Firmware in the CLU
- Downloading the Firmware Image File
- Updating the Firmware
- Restarting - Single RAID Subsystem, Telnet
- Restarting - RAID with JBOD Expansion, Telnet
- Restarting - Single RAID Subsystem, SSH
- Restarting - RAID with JBOD Expansion, SSH
- Restarting - Single RAID Subsystem, Serial
- Restarting - RAID with JBOD Expansion, Serial
- Replacing a Power Supply
- Replacing a Cooling Unit Fan or Blower
- Replacing a Cache Battery
- Replacing a RAID Controller - Dual Controllers
- Replacing a RAID Controller - Single Controller
- Chapter 7: Technology Background
- Chapter 8: Troubleshooting
- VTrak is Beeping
- LEDs Display Amber or Red
- CLU Reports a Problem
- WebPAM PROe Reports a Problem
- Event Notification Response
- Critical & Offline Disk Arrays
- Incomplete Array
- Physical Drive Problems
- Enclosure Problems
- Controller Enters Maintenance Mode
- Connection Problems
- Browser Does Not Connect to WebPAM PROe
- Unsaved Data in the Controller Cache
- Chapter 9: Support
- Appendix A: Useful Information
- Appendix B: Multipathing on Windows
- Before You Begin
- Installing PerfectPath
- Verifying Installation
- Running Perfect Path View
- Monitoring Your LUNs and Paths
- Features and Settings
- Troubleshooting
- Updating PerfectPath
- Repairing PerfectPath
- Removing PerfectPath
- Appendix C: Multipathing on Linux
- Index
VTrak E-Class Product Manual
282
RAID 60 – Striping of Double Parity
RAID 60 combines both RAID 6 and RAID 0 features. Data is striped across
disks as in RAID 0, and it uses double distributed parity as in RAID 6. RAID 60
provides data reliability, good overall performance and supports larger volume
sizes.
Figure 8. RAID 60 is a combination of RAID 6 and RAID 0
Figure 9. RAID 60 Striping of Double Distributed Parity disk arrays
The total capacity of a RAID 60 logical drive is the smallest physical drive times
the number of physical drives, minus four.
RAID 60 also provides very high reliability because data is still available even if
multiple physical drives fail (two in each axle). The greater the number of axles,
the greater the number of physical drives that can fail without the RAID 60 logical
drive going offline.
Component Minimum Maximum
Number of Axles 2 16
Physical Drives per Axle 4 32
Physical Drives per Logical Drive 8 256
Data
Stripes
Double Distributed Parity
Disk Drives
Axle 1
Axle 2