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Synology NAS User's Guide
Based on DSM 5.2
30 Chapter 5: Manage Storage Space
SSD Cache
SSD cache
1
drives can be installed and mounted in a RAID 0 (read-only) or RAID 1 (read-write) configuration to
boost the read/write speed of a volume, including iSCSI LUN (Regular Files) on a volume, or iSCSI LUN (Block-
Level) on your Synology server. You can now create a read-only cache with one SSD, as well as mount, check
SSD compatibility, and view related information by going to Storage Manager > SSD Cache.
Please refer to your Synology server Quick Installation Guide for information regarding SSD installation. For more
detailed information regarding SSD management, please see DSM Help or Synology SSD Cache White Paper.
Hot Spare
Hot spare
2
disks are standby hard disks that can repair a degraded volume/Disk Group/iSCSI LUN by
automatically replacing a failed disk. Hot spare disks can be globally assigned to protect any volume/Disk
Group/iSCSI LUN within your Synology NAS, as long as the volume/Disk Group/iSCSI LUN matches the
following criteria:
The RAID type of the volume/Disk Group/iSCSI LUN must be one with data protection (i.e. RAID 1, RAID 5,
RAID 6, RAID 10).
The hot spare disk size must be equal to or larger than the size of the smallest disk in the volume/Disk
Group/iSCSI LUN.
Managing Hot Spares
Go to Storage Manager > Hot Spare > Manage to assign and manage hot spare disks. For more detailed
information, please see DSM Help.
Manage External Disks
External USB or eSATA disks can be attached to the USB or eSATA port of your Synology NAS for backup or file
sharing purposes.
3
Go to Control Panel > External Devices to manage attached external disks or setup printers. The External
Devices tab provides options to view device information, change formats, or eject the device. The Printer tab
provides options to setup USB or network printers. For more detailed instructions, please see DSM Help.
---------
1
SSD cache is supported on specific models only. Visit www.synology.com for more information
2
The hot spare feature is available on specific models only.
3
eSATA is supported on specific models only. Visit www.synology.com for more information.
- Based on DSM 5.2 1
- Table of Contents 2
- 3 Table of Contents 3
- 4 Table of Contents 4
- Introduction 5
- 6 Chapter 1: Introduction 6
- Online Resources 6
- Manager 7
- DiskStation Manager Desktop 8
- Widgets 9
- Based on DSM 5.2 10
- Modify System Settings 13
- Change Network Settings 14
- Join Wireless Network 14
- Modify Regional Options 15
- Use Energy Saving Features 16
- Check System Information 17
- View System Logs 18
- Monitor System Resources 19
- Analyze System Usage 19
- Scan System Settings 20
- Automate Tasks 21
- Receive Event Notifications 22
- Reset Admin Password 22
- Reinstall Synology NAS 23
- Enable SNMP Service 23
- Enable Terminal Services 23
- Manage Storage Space 24
- Quick or Custom Volumes 25
- RAID Types 25
- Change RAID Type 26
- Hard Disk Requirements 27
- Data Scrubbing 28
- SSD TRIM 28
- Manage Hard Disks 29
- SSD Cache 30
- Hot Spare 30
- Manage External Disks 30
- Manage RAID Groups 31
- RAID Group Types 32
- Change RAID Types 33
- Repair RAID Groups 33
- Expand RAID Groups 33
- Manage Volumes 34
- Repair Degraded Volumes 34
- Manage iSCSI LUNs 35
- Manage iSCSI Targets 35
- Storage Overview 36
- Internet 37
- Set up Router 38
- Add Port Forwarding Rules 38
- DSM Help 39
- Set Up VPN Connection 40
- Enhance Internet Security 41
- Set Up File Sharing 43
- Joining a Windows Domain 44
- Binding to an LDAP Server 44
- Manage Users and Groups 46
- Create Groups 47
- Set Up Shared Folders 48
- Create a Shared Folder 49
- Remove a Shared Folder 49
- Encrypt a Shared Folder 49
- Index Shared Folder Contents 50
- Access Files from Anywhere 51
- Access Files via FTP 53
- Access Files via WebDAV 54
- Sync Files via Cloud Station 54
- File Station Appearance 55
- Manage File Station Options 55
- Search for Files or Folders 56
- Set File Station in Action 56
- Share File Links 56
- Edit Music Information 57
- Edit Photos 57
- Back Up Data 58
- 59
- Enable Web Station 60
- Modify HTTP Service Options 61
- Manage PHP Settings 61
- Package Center 62
- Install or Buy Packages 63
- DS audio 64
- DS cloud 64
- DS download 64
- DS file 64
- Use Other Mobile Devices 65
- Troubleshooting 66
- SYNOLOGY, INC 67
- END USER LICENSE AGREEMENT 67
- LIMITED PRODUCT WARRANTY 69
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