User's Manual
Table Of Contents
- WD® Service and Support
- WD Guardian Services
- Important User Information
- Product Overview
- Connecting the Server and Getting Started
- Managing the WD Sentinel Server (Dashboard)
- Setting up WD Sentinel Server & Connecting Computers
- Accessing the Dashboard
- Tips for Performing Dashboard Tasks
- Adding a User Account
- Performing Dashboard Tasks
- Using the Home Page
- Managing User Accounts
- Managing Devices
- Managing Storage
- Monitoring Applications
- Monitoring System Health and Alerts
- Updating Software
- Managing Server Settings
- Shutting Down and Rebooting the Server
- Managing Storage on the WD Sentinel Server
- Using the WD Sentinel Server’s Features
- Using the Launchpad (Internal Users)
- Accessing Shared Folders Over Your Network
- Accessing Computers and Shared Folders Remotely
- Backing up (Windows PC)
- Backing up with Time Machine (Mac)
- Recovering/Restoring (Windows PC)
- Recovering/Restoring (Mac)
- Backing up your WD Sentinel Server
- Recovering a WD Sentinel Server Image or Resetting the Boot Drives to Factory Defaults
- Best Practices
- Troubleshooting
- Regulatory and Warranty Information
- Appendix
- Index

TROUBLESHOOTING
77
WD SENTINEL DS5100/DS6100
ADMINISTRATOR AND MAINTENANCE GUIDE
Imminent
Failure Boot
Drive <Drive
Name>
S.M.A.R.T early detection found a
premature drive failure condition on
one of the boot drives.
Replace the defective drive as soon
as possible to stop RAID from
going into a degraded state.
Invalid Drive The inserted drive is not compatible
with the device.
Replace the inserted drive with an
approved drive. See
Dashboard>Monitor> Tasks for a
list of approved drives.
Invalid Drive
Capacity
The new drive capacity is either
greater or smaller than the drive you
replaced.
Replace the inserted drive with a
drive that has the correct drive
capacity.
Network
Disconnected
The ethernet port does not have
network activity.
Restore network connectivity.
Power Supply
<Supply #>
Failed
Power supply 1 or 2 failed. Replace the defective power
supply.
• Access the Dashboard (See
“Accessing the Dashboard” on
page 25.)
• Click Monitor on the navigation
bar.
• Check the Power Adapter area to
review the status of your power
supply.
• Obtain and install a comparable
power supply.
Reboot
Required
The system requires a reboot. Safely reboot the system.
Software
Update
Complete
The software update process is
complete.
Check the Alert Viewer to verify the
completion of the software update.
Software
Update
Downloading
A software update is being
downloaded to the system.
Allow the process to fully complete.
No action is required.
Software
Update Reboot
Required
The software update is complete.
The system requires a reboot.
The reboot is normally automatic. If
it does not occur, perform a manual
reboot.
WD Software
Update
Available
There is a WD software update
available for download.
Access and perform the update.
• Access the Dashboard (See
“Accessing the Dashboard” on
page 25.)
• Click Monitor on the navigation
bar.
• Click the Software Update tab.
• Click Check for Updates.
• Click Download and Install to
update the software.
WD Software
Update Failed
The WD software update failed. Repeat the Software update
process again.
LCD Description Troubleshooting