User Manual
Table Of Contents
- Contents
- 1. Getting Started
- Start Using Your ReadyNAS System
- Additional Documentation
- Supported ReadyNAS Systems
- Supported Operating Systems
- Supported Browsers
- Diskless Systems
- Basic Installation
- Upgrade Pre-6.2 ReadyNAS Firmware for Use With ReadyCLOUD
- Discover and Set Up Your ReadyNAS Using ReadyCLOUD
- Local Setup Wizard
- Admin Page
- Access the Local Admin Page
- Register Your System
- Five Levels of Protection
- The ReadyNAS Community
- Safe Mode
- 2. Volume Configuration
- Basic Volume and RAID Concepts
- ReadyTIER, Tiers, Data, and Metadata
- Manage Volumes
- Change RAID Mode
- View the Status of a Volume
- Configure the Checksum Function
- Format Disks
- Create and Encrypt a Volume
- Delete a Volume
- Name a USB Drive
- Expand Storage Capacity
- Add Protection to a Volume
- Add Protection to a Flex-RAID Volume
- Add a Group to a Flex-RAID Volume
- Delete a RAID Group
- Use the Volume Management Wizard to Create a Volume
- Add a Tier to a Volume
- Enable or Disable Quotas on Volumes
- Maintain Volumes
- 3. Shares
- 4. LUNs
- 5. Snapshots
- 6. Users and Groups
- 7. Use Cloud Services
- 8. System Settings
- 9. System Power
- 10. Install and Manage Apps
- 11. System Monitoring
- 12. System Maintenance
- 13. Backup and Recovery
failure, you must add a second disk that is at least as large as the first. It can be added
while the system is running.
X-RAID uses the capacity of one disk for data storage and reserves the capacity of a
second disk for data protection, which allows the volume to recreate data if a disk fails.
In a two-disk system, the usable storage space is one disk. In a three-disk system, the
usable storage space is two disks. In general, the total capacity of your storage system
equals the capacity of all your disks minus the capacity of one disk.
The following figure illustrates how X-RAID uses new disks.
Figure 4. X-RAID disk usage
1. The first disk that you install is used for initial (unprotected) storage space.
2. The second disk that you install is reserved for data protection (parity information).
3. Installing additional disks increases your storage space.
Note: For systems with six or fewer bays, X-RAID reserves the capacity of one disk for
data protection. For systems with more than six bays, with at least two disks and up to
five disks, X-RAID reserves the capacity of one disk for data protection. For systems with
six or more disks, the default format is RAID 6, which reserves two disks. The actual
space reserved for data protection is distributed across all disks.
Flex-RAID
Software Manual26Volume Configuration
ReadyNAS OS 6.10