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Dell PowerVault NX3500 Administrator's Guide - Page 168

NFS Write to Snapshot, Replication Configuration Error, Replication Destination Cluster is Busy

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NFS Write to Snapshot Description Cause Workaround An NFS user tries to modify a file located in a snapshot. NAS volume snapshots are not writable by design. A snapshot data cannot be modified. Snapshot is an exact representation of the NAS volume data at the time of its creation. Replication Configuration Error Description Cause Workaround Replication between the source and destination NAS volumes fails because the source and destination systems topology are incompatible. The source and destination systems are incompatible for replication purposes. Upgrade the PowerVault NX3500 which is down. Replication Destination Cluster is Busy Description Cause Workaround Replication between the source NAS volume and the destination NAS volume fails because the destination cluster is not available to serve the required replication. Replication task fails because the destination cluster is not available to serve the required replication. Administrators must verify the replication status on destination system. 168 Troubleshooting

Section	Page
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
Setting Up Your PowerVault NX3500 Solution	29
Setting Up the Environment	29
Choosing the Topology	29
Completing the NAS System Setup Worksheet	36
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
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
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
PowerVault NX3500 Event Monitoring	77
Event Search	78
Defining Queries	79
Display Tab	79
Sort Tab	79
Filter Tab	80
Using Volumes, Shares, and Quotas	81
NAS Volumes	81
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
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
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
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
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
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
Command Line Interface	129
Overview	129
Accessing the CLI	130
CLI Menu Options	131
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
Internationalization	147
Overview	147
Unicode Client Support Overview	147
NFS Clients	148
CIFS Clients	148
Unicode Configuration Parameters	148
Unicode Configuration Limitations	149
File Size and Directory Name	149
Clients Compatibility Problems	149
Japanese Compatibility Issues	149
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
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
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
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
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
BPS Alarms	193