User Manual
Table Of Contents
- ROMB User Manual
- Contents
- Chapter 1: Introduction
- Chapter 2: Installation
- Chapter 3: Installing Drivers
- Chapter 4: RAID Management Utility
- Chapter 5: WebPAM
- Logging into WebPAM
- Logging out of WebPAM
- Managing Users
- Viewing Host Management
- Making Utility Configuration Settings
- Managing the Controller
- Managing Physical Drives
- Managing Logical Drives
- Viewing All Logical Drives
- Creating a Logical Drive
- Creating a JBOD Disk
- Deleting a Logical Drive or JBOD Disk
- Viewing Logical Drive Information
- Making Logical Drive Settings
- Migrating a Logical Drive
- Rebuilding a Logical Drive
- Synchronizing a Logical Drive
- Viewing Logical Drive Initialization
- Activating a Logical Drive
- Responding to a Critical or Offline Logical Drive
- Managing Spare Drives
- Chapter 6: Technology
- Chapter 7: Support
- Appendix A: Partition and Format
- Appendix B: Upgrades
- Index
Chapter 6: Technology
101
RAID 10 – Stripe / Mirror
Mirror + Stripe combines both of the RAID 1 and RAID 0 logical drive types.
RAID 10 can increase performance by reading and writing data in parallel—
striping—while protecting data by duplicating it—mirroring.
Promise implements RAID 10 by creating a data stripe over one pair of disk
drives, then mirroring the stripe over a second pair of disk drives. Some
applications refer to this method as RAID 0+1.
Figure 4. RAID 10 takes a striped pair of drives and mirrors them over two
additional drives
The data capacity RAID 10 logical drive equals the capacity of the smallest
physical drive times the number of physical drives, divided by two.
In some cases, RAID 10 offers double fault tolerance, depending on which
physical drives fail.
A RAID 10 logical drive requires an even number of physical drives and a
minimum of four.
Data Stripe
Data
Mirror
Physical Drives