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
Basic Snapshot Concepts
The ReadyNAS can provide protection of shares and LUNs through snapshots. Snapshots
contain references to data on a share or LUN. They take no space until the data they
reference is changed or deleted. Strictly speaking, snapshots are not backups, but they
function as backups because you can recover data from snapshots.
You can take snapshots only of shares or LUNs. You cannot take a snapshot of a volume.
Snapshots reside on the same volume as the share or LUN from which they were created.
The ReadyNAS can automatically take snapshots of a share or LUN according to a
schedule that you specify. You can also manually take or delete individual snapshots at
any time. Depending on available storage space, you can keep an unlimited number
of snapshots.
WARNING: When the available storage space on a volume decreases below a threshold
(set to a default of 5 percent) of the volume’s total storage space, the oldest automatic
snapshots are automatically deleted to bring the available storage space back to the
threshold or higher. Manual snapshots are never automatically deleted. The threshold
is part of the snapshot settings for a volume.
Once protection is available, the shares and LUNs on the Shares page indicate the
number of snapshots and the number of days with protection.
Figure 9. Share with daily snapshots
Note: For snapshots to be accessible to users from their network-attached device you
must select the Allow snapshot access check box in the share or LUN settings window.
For more information, see View and Change the Properties of a Shared Folder on page
64.
Note: Hourly snapshots are not taken for spun-down disks, but daily snapshots are
taken.
Software Manual125Snapshots
ReadyNAS OS 6.10