Linksys NSS6000 Series Service manual

Linksys Business Series Network Storage System
Administrator Guide
Models NSS4000 and 6000 Series
ADMINISTRATION
GUIDE
Product or Solution Graphic
Goes Here

© 2009 Cisco Systems, Inc. All rights reserved. OL-17960-02
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Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 1
Chapter 1: Introduction 1
Benefits 1
About This Guide 2
Recommended Installation Sequence 2
Using the Help 3
Audience 3
About the NSS Configuration Interface 3
Getting Help 4
Refreshing the GUI Pages 4
Approved Vendor List for Drives 4
Chapter 2: Managing the System 5
System Alerts 6
Storage Status 6
Network Status 7
Shares Status 7
Backup and Snapshots Status 7
Power Status 8
System Status 9
Viewing the Hardware Monitor 9
Viewing and Managing the System Logs 10
Viewing the Power Status Page 13
NSS-Supported UPS Product Families 14
Chapter 3: Adding the NSS to your Network 15
Physical Interfaces 15
Virtual Interfaces 16
Viewing the Network Settings 17
Configuring the Network Link IP 18
Resetting the DHCP Lease on a Link 19

Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 2
Viewing VLANs Configured on the NSS 20
Allowing a VLAN Access to the NSS 21
Changing a VLAN Configuration 23
Removing a VLAN’s Access to the NSS 25
Configuring the NSS Network Identification 26
Configuring DNS or WINS for Name Resolution 28
Joining the NSS to a Network Information System (NIS) Domain 30
Editing Access Control Lists (ACLs) from Windows Explorer:
Restrictions 32
Running Diagnostics of your Physical Links 32
Configuring the Network Ports 33
Setting up the Link Bonding & Advertising Modes 35
Chapter 4: Configuring your Storage 37
Disk Status Table 38
RAID Arrays Table 39
Volumes Table 40
USB Storage Status 40
Managing RAID Arrays 41
About the RAID Arrays Page 41
Choosing a RAID Array Level 42
Creating a RAID Array 44
Adding a Disk Drive to an Array 45
Deleting an Array 47
Migrating a RAID Array to another Storage Device 48
Virtualizing Storage within your Network 49
Exporting Storage to your Network 50
Creating Virtualized Storage 51
Unexporting Storage 52
Volume Management 53

Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 3
Creating a Volume 54
Expanding a Volume 55
Deleting a Volume 58
Viewing the Snapshot Reserve Details 59
Maintaining Active Snapshots 60
Creating a Snapshot for a Volume 61
Taking a Manual Snapshot of a Volume 63
Windows End Users: Accessing a Snapshot for a Share 64
Volume Encryption Overview 65
Locking an Encrypted Volume 66
Unlocking a Locked Volume 67
Changing the Password for an Encrypted Volume 69
Storage Options 70
Chapter 5: Setting up End-User Access 73
Managing your NSS Users 73
Creating a User Profile 74
Editing a User Profile 76
Integrating Users from an ADS, NTv4, or NIS Domain 78
Logging into the NSS as a Local User 79
Deleting a User Profile 79
Working with Groups 80
Creating a Group 80
Changing the Users Assigned to a Group 83
Integrating Groups from an Active Directory, NTv4, or
NIS Domain 84
Deleting a Group 84
Managing Volume Quotas 86
Changing the User’s Primary Group 87
About the Volume Quota Page 87

Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 4
Creating Volume Quota for a User or Group 88
Setting up the Grace Period for a Volume Quota 90
Changing a Volume Quota for a User or Group 91
Clearing a Quota 92
Network Filters Overview 93
Defining the Default Network Policy 94
Creating a Network Filter 96
Available Access Filters 97
Deleting a Network Filter 99
Configuring the User/Group Settings 99
Chapter 6: Managing the Shares 101
Creating a Share 102
Editing an Existing Share 105
Adding a DFS Shared Folder 108
Restrictions using Microsoft DFS from the NSS 111
Setting up CIFS Access 111
Setting up Network Filesystem (NFS) Access 112
Configuring the NSS for FTP Access 114
Configuring Passive Mode FTP 116
Creating or Running a Backup of a Share 120
Creating a Scheduled Backup for a Share 121
Initiating a Backup for a Share 124
Deleting Backup Images 126
Chapter 7: Managing the NSS 127
Rebooting or Shutting Down the NSS 127
Upgrading the NSS Firmware 129
Upgrading the NSS Firmware in a Virtualized Setup 131
Restoring the Factory Default Configuration 131

Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 5
Managing the NSS Configuration 133
Saving the Current Configuration 134
Restoring a Configuration File 137
Deleting a Configuration File 139
Configuring the Timing Settings 140
Configuring the Email Alerts for a Recipient 142
Changing the Email Alerts for a Recipient 144
Deleting an Email Alert Recipient Profile 145
Configuring SNMP Alerts 145
Changing the Administrator Password 147
Chapter 8: Accessing the Storage 149
Logging into a Share 149
Logging into the CIFS Shares with Administrator Privileges 149
Windows Users: Accessing the Storage by using CIFS/SMB 150
Windows Users: Accessing the Storage by using FTP 151
Mac Users: Accessing the Storage by using CIFS/SMB 151
Mac Users: Accessing the Storage by using FTP 152
UNIX/Linux Users: Accessing the Storage by using NFS 153
UNIX/Linux Users: Accessing the Storage by using FTP 154
Chapter A: Troubleshooting 155
NSS LEDs 155
Power LED (Front Panel) 155
System LED (Front Panel) 156
Reset Button (Front Panel) 156
LAN LED (Front Panel) 157
Hard Disk Drive LEDs 157
USB LED (Front Panel) 158
UPS LED (Back Panel) 158

Contents
Linksys Business Series NSS4000 and NSS6000 Network Storage System Administrator Guide 6
Repairing a Degraded Array 158
Working with a Failed Array 160
Drive Error LED Remains On 161
Firmware Attempt is Unsuccessful 161
Free Bound Virtualized Storage when the Master System Fails 162
All CIFS Connections were Unexpectedly Ended 163
Hotplugging the Ethernet Link doesn’t Reset IP or Link Rate 163
Unable to Create a Share or Quota for a Volume 163
Cannot Access the NSS through FTP 164
Cannot Rename a Folder through FTP 165
Configuration Page Does not Appear in Internet Explorer 165
Handling an Unexpected (Unclean) Shutdown 165
Boosting the Performance of NFS Transfers 166
Rejoining the ADS Domain after a Failed to Join 167
Appendix B: Specifications 168
Appendix C: Where to Go From Here 169
Chapter D: Glossary of Storage-related Terms
and Acronyms 170

1
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 1
Introduction
Thank you for choosing the Linksys Business Series Network Storage
System (NSS).
Administering a network can be a difficult job. Finding low-cost ways to simplify
your data-management tasks means that you have more resources to dedicate
elsewhere. The NSS is a Network Attached Storage (NAS) unit that appears as a
native file server for the various clients within your network, including Windows,
Apple Macintosh, UNIX, and Linux platforms. The biggest benefit to your users is
that they can now access data that might be stored across different physical
platforms as simply as if it were on their own computers. The NSS provides a
single repository that is completely dedicated to storage, ensuring the integrity,
reliability, and accessibility of your data for a relatively low cost.
The NSS lets you install up to four physical disk drives and virtualize your storage
into one or more logical, redundant storage units or RAID arrays. The NSS uses the
most common file-based protocols such as NFS, CIFS, and FTP for file sharing.
Benefits
The NSS offers these main advantages to your business:
•Cross-platform File Sharing: Share files easily and inexpensively across
different platforms over a cost-effective Ethernet and IP network.
•Easy Installation and Administration: With a basic understanding of
networking, the NSS is easily configured, managed and made available to
all of your users on the network.
•Data Consolidation: Centralize data to reduce management costs and
maximize your investment in existing hardware. This also means better
data security.

Introduction
About This Guide
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 2
1
About This Guide
The Linksys Business Series Network Storage System Administrator Guide
describes the Administrative features that are available for you to configure and
optimize your NSS. If you are setting up your system for the first time, refer to the
Linksys Business Series Network Storage System Getting Started Guide .
Recommended Installation Sequence
Installing the NSS system involves a series of steps, from setting up the hardware
to configuring the device. Certain activities must take place before others may be
attempted (for example, you must set the User and Group ID ranges must be set
before you join the NSS to the domain.
STEP 1 Set up the hardware:
a. Install the disk drive. Skip this step if you have an NSS4100 or NSS6100 as
they are already equipped with disk drives.
b. Connect the Ethernet link(s).
c. Connect the power.
STEP 2 Configure the NSS:
a. Log into the Configuration Interface.
b. Configure the time setting (options include NTP or manual).
c. Configure RAID(s). You can choose to skip this step if you have an NSS4100 or
NSS6100 as it is preconfigured with a RAID5 array.
d. Create the volume(s).
e. If you have multiple NSS units (one of which is a NSS6000 series unit), and you
want to virtualize your storage, set the export/Import of the virtualized arrays.
f. Configure the Network Domain Identification (NT4, Active Directory, NIS, etc.).
g. Set up the User and Group ID ranges (this enables the import of groups/users
from Domain Controllers)
h. Set up the users’ Home Directory Location (this enables you to set up local
users).

Introduction
Using the Help
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 3
1
i. Add any locally defined groups or users. (Optional)
STEP 3 Create Shares. Enable CIFS, NFS, FTP access to specific shares.
a. Setup DFS access. (Optional)
b. If you have an NSS6000 series unit, configure the volume snapshots. (Optional)
c. Configure the share backups as required. (Optional).
d. Go through the rest of the configuration options to set up quotas, edit groups,
set up email and SNMP alerts, and so forth. For more detailed information, refer
to the Online Help.
STEP 4 Instruct your users how to access the NSS.
Using the Help
The NSS help file provides information about using the configuration interface to
configure the NSS.
Audience
The information contained in these help pages is intended for use by network
administrators. It assumes a basic understanding of storage-related concepts,
including RAID, filesystems, and networking.
About the NSS Configuration Interface
The NSS Configuration Interface contains some basic navigation features to help
you as you configure the NSS.
•Manager Menu: The Manager Menu forms the left side of the configuration
interface window. It contains the menu options that represent the major
configuration areas for the NSS. For example, System, Network, Share,
Storage, and so on. When you click an option, a sub-menu of related options
appears. Clicking a subtopic opens the associated topic in the Topic page
in the right side of the window.
•Topic Page: When you select a topic from the Manager Menu, the
configuration page for that topic appears in the right side of the window.

Introduction
Approved Vendor List for Drives
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 4
1
Getting Help
There are two buttons on the NSS configuration interface window that you can
click to access help:
•From the Manager Menu click Help to display the full online Administrator
Guide. Use the navigation tools within the help to find information for your
chosen topic.
•A context-sensitive help button appears in the upper-right corner of the
topic page. Click it to display help on the specific configuration area. For
example, if the current configuration topic is about the status of your disk
drives, click the Help button for information about the details that appear on
the status page.
Refreshing the GUI Pages
Although certain GUI pages automatically refresh at a preselected time interval,
some pages do not refresh until they are reselected. The best way to manually
refresh a GUI page is to reselect it through the options in the Manager Menu on
the left side of the GUI window. For example, to refresh the NTP Configuration
page, from the Manager Menu, click Admin and then click Time. Do not use the
Refresh button on the Web browser toolbar as this can cause data issues.
Approved Vendor List for Drives
If you are purchasing disk drives to install in the NSS, see the Approved Vendor
List at http://www.cisco.com/support for a list of recommended disk drives.
When you select a disk drive, consider the type of RAID levels required to service
your business needs. For example, if you are creating a RAID (versus a JBOD),
make sure that each of the disks used in the array have the same disk capacity.
The RAID is built using the capacity of the smallest disk in the array.

2
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 5
Managing the System
The System Status page provides an overview of the current operating condition
of the NSS. For example, you can view system alert messages if a disk drive is
failing or has failed, if a volume is approaching its full capacity, if an array rebuild is
complete, and so on. You can also view the current status of any of the following:
storage, shares, backups, volume snapshots, network, power, and system details.
The System Status page automatically refreshes on a regular interval and is
helpful for monitoring the progress of certain processes such as building a RAID.
These sections provide a detailed explanation of the information that appears on
the System Status page.

Managing the System
System Alerts
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 6
2
System Alerts
The System Alerts section shows any system messages issued since the last
time they were cleared. Messages can range in severity from informational to
immediate action required.
There are three type of system alerts:
•Error: Indicates the most severe types of problems with the NSS. They are
color-coded red and require immediate action. For example, if a disk drive
or RAID array is in a failed condition.
•Warning: Indicates that there is a problem with the NSS that requires
eventual action. They are color-coded orange. For example, if the amount of
storage used for a volume is
over 90%.
•Notification: Shows the recent changes to the NSS. They do not require
action and are color-coded green. For example, the RAID rebuild is
complete.
Storage Status
The Storage area displays these details about the configured storage on the NSS:
•Drives: The number of physical disk drives installed.
•RAID Arrays: The number of configured RAID arrays.
•Volumes: The number of configured volumes.
•Total Configured Capacity: The total aggregate size of all configured
volumes.
•Percent Used: The total amount of the configured capacity used. The
percentage is color-coded according to the current percentage used:
-Green: 0 to 74%
-Orange: 75 to 89%
-Red: 90 to 100%

Managing the System
Network Status
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 7
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Network Status
The Network area displays the following:
•Link 1 & 2: The current status of the physical links. The status of the link can
be up (color-coded green) or down (color-coded red). If the link is not
present, the status appears
as “down.”
•Bonding Mode: Displays how the bonding mode for the physical links is
configured on the Network Properties page. See “Setting up the Link
Bonding & Advertising Modes,” on page 35 for more information.
•VLANs: The number of VLANs configured on the NSS.
•Link 1 IP: The IP address of the first Ethernet link.
•Link 2 IP: The IP address of the second Ethernet link (if installed). If the
bonding mode is set to “active backup” or “802.3ad”, the two links appear
as a single entity (i.e., “Link 1+2 IP”).
Shares Status
The Shares area displays the following:
•Shares: The number of configured shares.
•Connected Users: The total number of user sessions currently connected
to the NSS.
-FTP: The FTP access state (enabled or disabled).
-NFS: The NFS access state (enabled or disabled).
Backup and Snapshots Status
•The Backup and Snapshots area displays the following:
•Snapshots: The total number of volume snapshots configured.
•Last Backup: The date and time of the last backup run. If a backup has
never been run on the system, the word “never” appears.

Managing the System
Power Status
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 8
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Power Status
The Power area displays the following:
•UPS: These options are available depending on the current operating
condition of the UPS.
-No Connection: A UPS is not currently connected to the NSS.
-On Mains: A UPS is connected to the NSS but is not currently being
used to power the unit. The NSS is deriving power from the mains
power.
-On Battery (%): The NSS is currently deriving its power from the UPS
battery. The percentage of power still available is also listed and is
color-coded according to the amount of battery remaining.
For more information about how the UPS functions, refer to the UPS
documentation.
•RPSU: These options are available depending on the current operating
condition of the RPSU.
-No Connection: There is no RPSU installed.
-Ready: An RPSU is installed and is currently available as a backup
power source.
-Standby/Fault: An RPSU is installed but is in standby mode, or, the
RPSU is installed and has a fault condition. For example, the RPSU is
connected to the NSS but is powered off.
-Active: The RPSU is currently being used to provide backup power to
the NSS.
-Unavailable: The RPSU is currently providing backup power to another
device and is not available to provide backup power to the NSS.
For more information about how the RPSU functions, refer to the RPSU
documentation.

Managing the System
System Status
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 9
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System Status
The System area displays the following:
•Serial Number: The serial number of the NSS.
•Firmware Version: The current version and date of the firmware installed on
the NSS.
•Uptime: The number of days the NSS has been running since it was last
rebooted.
•Last Boot: The date when the NSS was last rebooted.
Viewing the Hardware Monitor
The Hardware Monitor page displays these details about the physical conditions
related to the NSS:

Managing the System
Viewing and Managing the System Logs
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 10
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•Voltages: The current voltage reading for all voltage rails in the system. The
reading is color-coded depending on if the voltage level is within
specification (green) or out of specification and in need of attention (red).
•Fans: The fan speed for each chassis fan. Normal fan operation is color-
coded green. If the fan has stalled, the reading is color-coded red.
•Te mp e rat ur e s : The NSS has temperature sensors located at various parts
of the chassis. Temperature readings are performed from these sensors as
well as from any installed disks (if the disk has an internal temperature
sensor). If a disk does not have a temperature sensor, the reading appears
as “unavailable.” If the temperature of the system or disks is over or under
the ideal temperature, the temperature is color-coded red. When the
temperature is within the normal range the color-coding is green.
Viewing and Managing the System Logs
The NSS captures various types of information into log files, such as user access
details. You can store the logs locally or on a remote server on the network. Since
local space allocated for log files is limited, the logs are overwritten once the
space is filled. Each new event overwrites the oldest event recorded in the file.
To work with the log files:
STEP 1 From the Manager Menu, click System  Logs.

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Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 11
The System Logs page appears.
STEP 2 You can view, download, or delete these types of log files:
•Admin: A full list of time-stamped actions that were initiated through the
NSS configuration interface.
•Web Access: This log displays IP addresses of the systems that accessed
the NSS configuration interface and the date and time of the authentication
requests. This information helps you detect unauthorized attempts to
access the configuration interface.
•CIFS Sharing: A time-stamped event log of events initiated by users
accessing shares through CIFS.
•FTP Access: A time-stamped log of FTP actions, including user logins, file
transfers, and
user logouts.
•All Logs: A list of all the log files. You can download and save this file.

Managing the System
Viewing and Managing the System Logs
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 12
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This is an example of the Administrator Log:
STEP 3 Choose where you want to store the log files:
•Locally: To store the log files on the NSS, select Store Logs Locally, and
then select the volume to which you want to store the logs from the options
in the Store Logs to drop-down menu.
•Remotely: To store the log files on a remote server, select Forward Log
Messages, and then enter the name or IP address of the server in one or
both of the Remote Log Host fields. (If you set up two remote hosts, the log
file is sent to both servers.) Note that the remote server must be running a
syslog server.
STEP 4 Click Update.