Dell PowerVault NX3500 Service manual

Dell PowerVault
NX3500 System
Administrator’s Guide

Notes and Cautions
NOTE: A NOTE indicates important information that helps you make better use of
your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data if
instructions are not followed.
____________________
Information in this publication is subject to change without notice.
© 2011 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.
Trademarks used in this text: Dell™, the DELL logo, Dell OpenManage™, and PowerVault™ are
trademarks of Dell Inc. Microsoft®, Windows®, Internet Explorer®, and Windows Server®are either
trademarks or registered trademarks of Microsoft Corporation in the United States and/or other
countries. Symantec™, NetBackup™, and Backup Exec™ are trademarks of Symantec Corporation.
CommVault®and Simpana®are either trademarks or registered trademarks of CommVault.
Other trademarks and trade names may be used in this publication to refer to either the entities claiming
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.
April 2011 Rev. A00

Contents 3
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 17
About This Document . . . . . . . . . . . . . . . . . . 18
Other Information You May Need . . . . . . . . . . . . 19
Terms Used in the Document . . . . . . . . . . . . . . 19
PowerVault NX3500 Architecture . . . . . . . . . . . . 22
Key Features . . . . . . . . . . . . . . . . . . . . 23
PowerVault NX3500 Views . . . . . . . . . . . . . 23
System Components . . . . . . . . . . . . . . . . . . . 24
NAS Controller Pair. . . . . . . . . . . . . . . . . 24
PowerVault MD Storage . . . . . . . . . . . . . . 25
BPS . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cache . . . . . . . . . . . . . . . . . . . . . . . . 25
iSCSI Connections . . . . . . . . . . . . . . . . . 25
Internal Network A . . . . . . . . . . . . . . . . . 26
Internal Network B . . . . . . . . . . . . . . . . . 26
LAN/Client Network . . . . . . . . . . . . . . . . 26
2 Setting Up Your PowerVault
NX3500 Solution . . . . . . . . . . . . . . . . . . . 29
Setting Up the Environment . . . . . . . . . . . . . . . 29
Choosing the Topology . . . . . . . . . . . . . . . 29
Completing the NAS System
Setup Worksheet . . . . . . . . . . . . . . . . . . 36

4Contents
Preparing Your Management Station. . . . . . . . 36
Preparing Your MD Storage Solution . . . . . . . . . . 36
Creating Disk Groups . . . . . . . . . . . . . . . . 37
Creating Virtual Disks . . . . . . . . . . . . . . . . 39
Creating a Host Group . . . . . . . . . . . . . . . 41
Creating Host-to-Virtual Disk Mappings . . . . . . 42
Running the PowerVault
NAS Configuration Utility . . . . . . . . . . . . . . . . 43
Installing the PowerVault NAS
Configuration Utility . . . . . . . . . . . . . . . . . 43
Launching the PowerVault NAS
Configuration Utility . . . . . . . . . . . . . . . . . 45
NAS Manager Configuration Wizard . . . . . . . . 54
Accessing the NAS Manager
Web Interface. . . . . . . . . . . . . . . . . . . . 54
PowerVault NAS Manager
Configuration Wizard . . . . . . . . . . . . . . . . 56
3 Accessing the NAS Manager . . . . . . . . 59
Accessing PowerVault NAS Manager . . . . . . . . . 59
Browser Requirements . . . . . . . . . . . . . . . 59
NAS Manager Overview . . . . . . . . . . . . . . . . . 59
Action Bar. . . . . . . . . . . . . . . . . . . . . . 60
Admin Tabs . . . . . . . . . . . . . . . . . . . . . 60
Admin Tree . . . . . . . . . . . . . . . . . . . . . 60
Toolbar . . . . . . . . . . . . . . . . . . . . . . . 61
Page. . . . . . . . . . . . . . . . . . . . . . . . . 61
Search Bar . . . . . . . . . . . . . . . . . . . . . 61

Contents 5
4 Monitoring PowerVault NX3500 . . . . . . . 63
Overview . . . . . . . . . . . . . . . . . . . . . . . . . 64
Dashboard . . . . . . . . . . . . . . . . . . . . . 64
Network Performance . . . . . . . . . . . . . . . 68
Load Balancing . . . . . . . . . . . . . . . . . . . . . 69
Over Time . . . . . . . . . . . . . . . . . . . . . . 69
Client Connections . . . . . . . . . . . . . . . . . 70
CIFS Connections . . . . . . . . . . . . . . . . . . 73
Hardware . . . . . . . . . . . . . . . . . . . . . . . . 73
Component Status . . . . . . . . . . . . . . . . . 74
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . 74
Space Utilization . . . . . . . . . . . . . . . . . . 74
Quota Usage . . . . . . . . . . . . . . . . . . . . 75
Replication. . . . . . . . . . . . . . . . . . . . . . . . 76
Active Remote Replication Jobs . . . . . . . . . . 76
Remote Replication Report . . . . . . . . . . . . . 76
5 PowerVault NX3500 Event Monitoring . . . . 77
Event Search . . . . . . . . . . . . . . . . . . . . . . 78
Defining Queries . . . . . . . . . . . . . . . . . . . . 79
Display Tab . . . . . . . . . . . . . . . . . . . . . 79
Sort Tab . . . . . . . . . . . . . . . . . . . . . . 79
Filter Tab . . . . . . . . . . . . . . . . . . . . . . 80
6 Using Volumes, Shares, and Quotas . . . . 81
NAS Volumes . . . . . . . . . . . . . . . . . . . . . . 81

6Contents
Overview . . . . . . . . . . . . . . . . . . . . . . 81
Choosing an Allocation Strategy . . . . . . . . . . 82
Managing NAS Volumes . . . . . . . . . . . . . . 82
Adding a NAS Volume . . . . . . . . . . . . . . . 83
Modifying a NAS Volume . . . . . . . . . . . . . . 83
Removing a NAS Volume . . . . . . . . . . . . . . 83
Shares and Exports . . . . . . . . . . . . . . . . . . . 84
Managing NFS Exports . . . . . . . . . . . . . . . 84
Managing CIFS Shares . . . . . . . . . . . . . . . 85
Setting Access Control Lists and Share
Level Permissions on DSFS . . . . . . . . . . . . . . . 87
CIFS Storage Administrator Account . . . . . . . . 87
Active Directory Configuration . . . . . . . . . . . 87
Setting ACLs or SLPs on a CIFS Share . . . . . . . 87
Access Using CIFS . . . . . . . . . . . . . . . . . 89
Configuring CIFS Shares Level Permissions . . . . 90
Removing a CIFS Share . . . . . . . . . . . . . . . 91
Resetting Local Administrator Password. . . . . . 91
Quotas . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Default Quotas . . . . . . . . . . . . . . . . . . . 92
User/Group Specific Quotas . . . . . . . . . . . . 92
Quota Types . . . . . . . . . . . . . . . . . . . . . 93
7 Protecting Data on
PowerVault NX3500 . . . . . . . . . . . . . . . . . 95
NAS Block Level Replication . . . . . . . . . . . . . . 96
Activating Replication . . . . . . . . . . . . . . . 97
Setting Up a Replication Partner . . . . . . . . . . 97
Adding a Replication Policy. . . . . . . . . . . . . 98
Managing Replication Policies . . . . . . . . . . . 98

Contents 7
Deleting a Replication Policy . . . . . . . . . . . . 98
Removing a Replication Partner . . . . . . . . . . 98
Managing Snapshots . . . . . . . . . . . . . . . . . . 99
Snapshots. . . . . . . . . . . . . . . . . . . . . . 99
Activating Snapshots . . . . . . . . . . . . . . . . 99
Creating a Snapshot (Without a Policy) . . . . . . 99
Adding or Modifying a Snapshot Policy . . . . . . 99
Restoring a NAS Volume From a Snapshot . . . . 100
Deleting a Snapshot . . . . . . . . . . . . . . . . 100
Backing Up and Restoring Data . . . . . . . . . . . . . 100
Supported Applications. . . . . . . . . . . . . . . 102
Enabling NDMP Support . . . . . . . . . . . . . . 102
Changing NDMP Password . . . . . . . . . . . . 102
Modifying DMA Servers List . . . . . . . . . . . . 103
Specifying NAS Volume for Backup . . . . . . . . 103
Displaying Active NDMP Jobs . . . . . . . . . . . 103
Terminating an Active NDMP Job . . . . . . . . . 104
Protecting Data on PowerVault NX3500. . . . . . . . . 104
Overview . . . . . . . . . . . . . . . . . . . . . . 104
Supported Applications. . . . . . . . . . . . . . . 104
Adding Antivirus Hosts . . . . . . . . . . . . . . . 105
Enabling Antivirus Support Per CIFS Share . . . . 105
8 Managing the PowerVault NX3500 . . . . 107
Managing the System . . . . . . . . . . . . . . . . . . 109
Managing Client Access . . . . . . . . . . . . . . . . 109
Viewing the Defined Subnets. . . . . . . . . . . . 109
Modifying a Subnet . . . . . . . . . . . . . . . . . 110
Removing a Subnet . . . . . . . . . . . . . . . . . 110

8Contents
Managing Administrator Users . . . . . . . . . . . . 110
Adding an Administrator . . . . . . . . . . . . . 111
Changing the Administrator’s Password . . . . . 111
Modifying an Administrator. . . . . . . . . . . . 112
Modifying an Administrator's
E-Mail Filter Rules. . . . . . . . . . . . . . . . . 112
Removing an Administrator . . . . . . . . . . . . 112
Managing Local Users . . . . . . . . . . . . . . . . . 113
Adding Local Users . . . . . . . . . . . . . . . . 113
Modifying Local Users . . . . . . . . . . . . . . 114
Deleting Local Users . . . . . . . . . . . . . . . 114
Changing the Password. . . . . . . . . . . . . . 114
Managing Local Groups . . . . . . . . . . . . . . . . 114
Adding a Local Group . . . . . . . . . . . . . . . 115
Modifying a Local Group . . . . . . . . . . . . . 115
Deleting a Local Group . . . . . . . . . . . . . . 115
Authentication . . . . . . . . . . . . . . . . . . . . . 116
Configuring an Identity
Management Database. . . . . . . . . . . . . . 116
Enabling User Authentication
Through an NIS Database . . . . . . . . . . . . 117
Enabling User Authentication
Through an LDAP Database . . . . . . . . . . . 117
Disabling the Use of an External
UNIX Identity Management Database . . . . . . 118
Configuring Active Directory . . . . . . . . . . . . . 118
Synchronizing PowerVault NX3500 With the
Active Directory Server . . . . . . . . . . . . . . . . 118
Configuring the Active Directory Service. . . . . 119
Network Configuration Overview . . . . . . . . . . . 119
Accessing the System . . . . . . . . . . . . . . 119

Contents 9
Performance and Static Routes . . . . . . . . . . 121
Removing an NTP Server . . . . . . . . . . . . . . . . 122
Synchronizing PowerVault NX3500 With
a Local NTP Server . . . . . . . . . . . . . . . . . . . 122
Configuring DNS . . . . . . . . . . . . . . . . . . . . . 123
Adding DNS Servers . . . . . . . . . . . . . . . . 123
Removing DNS Servers. . . . . . . . . . . . . . . 123
Adding DNS Domains. . . . . . . . . . . . . . . . 123
Deleting DNS Domains . . . . . . . . . . . . . . . 124
Managing Static Routes . . . . . . . . . . . . . . . . . 124
Adding Static Routes . . . . . . . . . . . . . . . . 124
Modifying a Static Route . . . . . . . . . . . . . . 124
Deleting a Static Route . . . . . . . . . . . . . . . 124
Defining File System Protocols . . . . . . . . . . . . . 125
Configuring CIFS Parameters . . . . . . . . . . . . . . 125
Configuring General CIFS Parameters . . . . . . . 125
Configuring Advanced CIFS Parameters . . . . . . 126
Configuring System Time Parameters . . . . . . . . . . 127
Changing the Time Zone . . . . . . . . . . . . . . 127
Manually Configuring the
Current Date and Time . . . . . . . . . . . . . . . 127
9 Command Line Interface . . . . . . . . . . . . 129
Overview . . . . . . . . . . . . . . . . . . . . . . . . . 129
Accessing the CLI . . . . . . . . . . . . . . . . . . . . 130
CLI Menu Options . . . . . . . . . . . . . . . . . . . . 131

10 Contents
10 Maintaining the PowerVault NX3500 . . . 135
Shutting Down the PowerVault NX3500 System. . . . 135
Turning On the PowerVault NX3500 System . . . . . . 136
Installing the Service Pack . . . . . . . . . . . . . . 136
Expanding the PowerVault NX3500
Storage Capacity . . . . . . . . . . . . . . . . . . . . 137
Prerequisites . . . . . . . . . . . . . . . . . . . 137
Adding LUNs to PowerVault NX3500 . . . . . . . 138
Running Diagnostics on PowerVault NX3500 . . . . . 139
Online Diagnostics . . . . . . . . . . . . . . . . 139
Offline Diagnostics . . . . . . . . . . . . . . . . 140
Reinstalling the PowerVault NX3500 . . . . . . . . . 141
Replacing a PowerVault NX3500 Controller. . . . . . 142
Prerequisites . . . . . . . . . . . . . . . . . . . 142
Detaching the PowerVault NX3500 Controller . . 143
Removing and Replacing the PowerVault
NX3500 Controller . . . . . . . . . . . . . . . . . 144
Attaching the PowerVault
NX3500 Controller . . . . . . . . . . . . . . . . . 144
11 Internationalization . . . . . . . . . . . . . . . . 147
Overview . . . . . . . . . . . . . . . . . . . . . . . . 147
Unicode Client Support Overview . . . . . . . . . . . 147
NFS Clients . . . . . . . . . . . . . . . . . . . . . . . 148
CIFS Clients. . . . . . . . . . . . . . . . . . . . . . . 148
Unicode Configuration Parameters . . . . . . . . . . 148

Contents 11
Unicode Configuration Limitations . . . . . . . . . 149
File Size and Directory Name. . . . . . . . . . . . 149
Clients Compatibility Problems . . . . . . . . . . . 149
Japanese Compatibility Issues . . . . . . . . . . . 149
12 Troubleshooting . . . . . . . . . . . . . . . . . . . 151
Clients Cannot Access CIFS Files . . . . . . . . . . . . 151
Cannot Change the Ownership
of a File or a Folder . . . . . . . . . . . . . . . . . . . 151
Cannot Modify NAS Files . . . . . . . . . . . . . . . . 152
Cannot Mount NFS Export . . . . . . . . . . . . . . . . 152
CIFS Access Denied . . . . . . . . . . . . . . . . . . . 154
CIFS ACL Corruption . . . . . . . . . . . . . . . . . . . 155
CIFS Client Clock Skew . . . . . . . . . . . . . . . . . 155
CIFS Client Disconnection on File Read. . . . . . . . . 156
CIFS Client General Disconnection . . . . . . . . . . . 156
CIFS Client Login Failure . . . . . . . . . . . . . . . . 156
CIFS Connection Failure . . . . . . . . . . . . . . . . . 156
CIFS Delete-On-Close Denial . . . . . . . . . . . . . . 157
CIFS File Access Denied. . . . . . . . . . . . . . . . . 157
CIFS File Sharing Conflict . . . . . . . . . . . . . . . . 157
CIFS Guest Account Invalid . . . . . . . . . . . . . . . 158
CIFS Locking Inconsistency . . . . . . . . . . . . . . . 158

12 Contents
CIFS Maximum Connections Reached. . . . . . . . . 158
CIFS Share Does Not Exist . . . . . . . . . . . . . . . 159
CIFS Path Share Not Found . . . . . . . . . . . . . . 160
CIFS Write to Read Only Volume. . . . . . . . . . . . 160
Name Server Unresponsive . . . . . . . . . . . . . . 161
Mixed File Ownership Denied . . . . . . . . . . . . . 161
NAS Container Security Violation . . . . . . . . . . . 162
NFS Export Does Not Exist. . . . . . . . . . . . . . . 163
NFS File Access Denied . . . . . . . . . . . . . . . . 163
NFS Insecure Access to Secure Export . . . . . . . . 164
NFS Mount Fails Due to Export Options . . . . . . . . 164
NFS Mount Fails Due to Netgroup Failure. . . . . . . 165
NFS Mount Path Does Not Exist . . . . . . . . . . . . 166
NFS Owner Restricted Operation . . . . . . . . . . . 167
NFS Write to Read-Only Export . . . . . . . . . . . . 167
NFS Write to Read-Only Volume . . . . . . . . . . . . 167
NFS Write to Snapshot. . . . . . . . . . . . . . . . . 168
Replication Configuration Error . . . . . . . . . . . . 168
Replication Destination Cluster is Busy. . . . . . . . 168
Replication Destination FS is Busy . . . . . . . . . . 169
Replication Destination is Down . . . . . . . . . . . 169

Contents 13
Replication Destination is Not Optimal . . . . . . . . . 170
Replication Destination Volume is
Busy Reclaiming Space . . . . . . . . . . . . . . . . . 170
Replication Destination Volume is Detached . . . . . . 170
Replication Disconnection . . . . . . . . . . . . . . . 171
Replication Incompatible Versions . . . . . . . . . . . 171
Replication Internal Error . . . . . . . . . . . . . . . . 171
Replication Jumbo Frames Blocked . . . . . . . . . . 172
Replication Destination Does Not
Have Enough Space . . . . . . . . . . . . . . . . . . . 172
Replication Source is Busy . . . . . . . . . . . . . . . 172
Replication Source is Down. . . . . . . . . . . . . . . 173
Replication Source is Not Optimal . . . . . . . . . . . 173
Replication Source Volume is
Busy Reclaiming Space . . . . . . . . . . . . . . . . . 173
Group Quota For an Active Directory
User Does Not Work . . . . . . . . . . . . . . . . . . . 174
NAS Dashboard is Delayed . . . . . . . . . . . . . . . 174
NAS System Time is Wrong . . . . . . . . . . . . . . . 175
NFS Access Denied to a File or Directory. . . . . . . . 176
Problematic SMB Access From a Linux Client . . . . . 176
Specific Subnet Clients Cannot Access
the PowerVault NX3500 System . . . . . . . . . . . . . 177

14 Contents
Strange UID and GID Numbers on
Dell NAS System Files . . . . . . . . . . . . . . . . . 177
Troubleshooting Active
Directory Authentication. . . . . . . . . . . . . . . . 178
Troubleshooting Snapshots . . . . . . . . . . . . . . 179
Troubleshooting System Shutdown . . . . . . . . . . 180
Troubleshooting an NDMP Internal Error . . . . . . . 180
Error Received While Running the PowerVault
NAS Configuration Utility . . . . . . . . . . . . . . . 182
Cannot Launch PowerVault NX3500
NAS Configuration Utility . . . . . . . . . . . . . . . 183
Multiple Errors Received
During File System Format . . . . . . . . . . . . . . . 183
Troubleshooting Active
Directory Configuration . . . . . . . . . . . . . . . . 185
Cannot Connect to the NAS Manager . . . . . . . . . 186
Troubleshooting DNS Configurations . . . . . . . . . 186
Blank Login Screen . . . . . . . . . . . . . . . . . . 187
Backup Power Supply LED
Displays a Solid Amber Light . . . . . . . . . . . . . 187
Backup Power Supply LED
Displays Green and Amber. . . . . . . . . . . . . . . 188
Backup Power Supply
Displays a Blinking Amber LED . . . . . . . . . . . . 189
BPS LED Is Off . . . . . . . . . . . . . . . . . . . . . 189

Contents 15
Troubleshooting RX and TX
Pause Warning Messages. . . . . . . . . . . . . . . . 190
Identifying Controllers . . . . . . . . . . . . . . . . . . 190
Determining the IQN of the
PowerVault NX3500 Controllers Using CLI . . . . . . . 190
Associating LUN Names to Virtual Disks . . . . . . . . 191
A BPS Alarms . . . . . . . . . . . . . . . . . . . . . . 193
B NAS Setup Worksheet . . . . . . . . . . . . . . 197

16 Contents

Introduction 17
1
Introduction
The Dell PowerVault NX3500 clustered network attached storage (NAS)
solution is a
high-availability storage solution that aggregates multiple NAS
controllers in a cluster and presents them to UNIX, Linux, and Microsoft
Windows clients as one virtual file server.
The PowerVault NX3500:
• Is an enterprise-class storage solution that offers a robust feature set which
makes it the right choice for a wide range of applications and
environments.
• Is a virtualized storage solution that leverages load balancing and a single
distributed file system.
• Helps administrators expand existing capacity and improve performance
when needed, without impacting the applications or users.
• Provides administrative functions for storage administrators who perform
day-to-day system operations and storage management.
• Increases the utilization of hardware and lowers the total cost of
ownership.

18 Introduction
About This Document
This document provides information on the features available to the storage
administrator. It is organized as follows.
Chapter Description
Introduction Provides information on the PowerVault NX3500 cluster
solution architecture and features.
Setting Up Your
PowerVault NX3500
Solution
Provides instructions on setting up the PowerVault NX3500,
the various topologies, and cabling options. It also includes
the detailed setup procedure and configuration options
available.
Accessing the NAS
Manager
Provides an overview of the NAS Manager web console and
instructions for accessing it.
Monitoring Provides descriptions and procedures for monitoring the
PowerVault NX3500.
Events Viewer Provides procedures for searching events and defining
queries.
User Access Provides instructions for managing NAS volumes, shares, and
quotas.
Data Protection Provides procedures for configuring the snapshots, remote
replication, and backup agent.
System Management Provides procedures and descriptions about the initial
configuration, system information, users management,
license management, system time, networking, protocols,
authentication, monitoring configuration, and maintenance.
Command Line
Interface
Provides basic information for using the PowerVault NX3500
CLI.
System Maintenance Provides procedures for shutting down, powering up,
upgrading, and running diagnostics.
Troubleshooting Provides information on troubleshooting your NAS storage
solution.
Internationalization Provides information about unicode support in PowerVault
NX3500.
BPS Alarms Contains additional information on troubleshooting the Dell
Backup Power Supply (BPS).

Introduction 19
Other Information You May Need
Terms Used in the Document
Document Description
Getting Started Guide Provides an overview of system features, setting up your
solution, and technical specifications. This document is
shipped with your system and is also available at
support.dell.com/manuals.
Hardware Owner's
Manual
Provides information about solution features and describes
how to troubleshoot the system and install or replace system
components. This document is available at
support.dell.com/manuals.
Rack Installation
Instructions
Describes how to install your system into a rack. This
document is shipped with your rack solution and is also
available at support.dell.com/manuals.
Online Help Provides information about configuring and managing the
NAS Manager. The online help is integrated with the system
and can be accessed from the NAS Manager.
Table 1-1. PowerVault NAS System Terms
Term Description
Backup Power
Supply (BPS)
Provides back up battery power in the event of a power loss.
Client access VIP Virtual IP addresses that clients use to access CIFS shares and
NFS exports hosted by a PowerVault NAS system. The
PowerVault NAS system supports multiple client access
Virtual IPs (VIPs).
Controller (NAS
controller or nodes)
Server appliance installed with the PowerVault NX3500 Dell
Scalable File System software.
Controller pair Two NAS controllers that are configured as pair in a
PowerVault NAS clustered system. Cache data is mirrored
between the paired NAS controllers.
Data Management
Application (DMA)
Data Management Application is also known as a Backup
Application Server.

20 Introduction
Dell PowerVault
Modular Disk
Storage Manager
(MDSM)
The management software that ships with the PowerVault
MD32x0i/MD36x0i array.
Dell Scalable File
System (DSFS)
High-performance, scalable file system software installed on
NAS controllers.
Host Port Identifier Unique ID used to identify hosts in a network.
Internal network A
(peer connection)
The PowerVault NX3500's internal network consists of two
independent Gigabit Ethernet ports. The internal network is
the infrastructure for PowerVault NX3500 clustering,
including the heartbeat monitor, data transfer, and mirroring
information between the controllers.
Internal network B
(internal
management/IPMI)
The PowerVault NX3500 internal management network (also
known as internal network b) connects both controllers. All
administrative related functions and controller reboots are
performed on this network.
LAN/client network
(primary network)
The network through which clients access NAS shares/exports.
The PowerVault NAS system is connected to customer IT
environment and its NAS clients using this network.
NAS storage pool Virtual disks created on the PowerVault MD32x0i/MD36x0i
storage arrays dedicated to the PowerVault NX3500 system.
NAS volume (NAS
container or virtual
volume)
A virtualized volume that consumes storage space in the NAS
storage pool. Administrators can create CIFS shares and NFS
exports on a NAS volume and share them with authorized
users. A PowerVault NAS system supports multiple NAS
volumes.
NAS replication Replication between two PowerVault NAS systems or between
two NAS volumes.
NAS replication
partners
PowerVault NAS systems participating in a replication activity.
Network Data
Management
Protocol (NDMP)
Network Data Management Protocol used for backup and
restore.
Peer controller The peer NAS controller with which a specific NAS controller
is paired in a PowerVault NAS system.
Table 1-1. PowerVault NAS System Terms
(continued)