Information about Navisphere/Unisphere Host Agent.



CLARiiON Series, VNX Series




Navisphere host agent not registering correctly.

Hosts show as "Unmanaged" in Navisphere.

Some hosts show a "U" in Navisphere Manager GUI.

Host registers with the incorrect host IP address or the incorrect host name.




The Navisphere Host Agent is use to register a host to a CLARiiON array. Normally this is done when setting up a new host. The Navisphere Host Agent is shipped with each Array on the SUPPORT CD. When connecting a new host to a CLARiiON array for the first time, host registration will take place if the Navisphere Host Agent is installed and running. Without the Navisphere Host Agent running, only WWN registration will take place down the Fibre Channel connection (called “in-band”). Full host registration (host name, IP address and other information) requires the use of an IP connection between the host and the array (called “out-of-band”).  

There are two utilities for registering a host to the CLARiiON:  

1.     Navisphere Server Utility for arrays running flare version 29 and earlier and the new Unisphere Server Utility for Release 30.

2.     Navisphere Host Agent  

Home > Support > Software Downloads and Licensing > Downloads J-O > Navisphere Server Software

Home > Support > Software Downloads and Licensing > Downloads T-Z > Unisphere Server Software  

The documentation for these programs is called “CX3 and CX Series Server Support Products” and can be found on Powerlink at:  

Home > Support > Technical Documentation and Advisories > Host Connectivity/HBAs > Installation/Configuration  


There are a number of different places to find documentation for setting up and configuring the Navisphere Host Agent. The "Host Connectivity Guides" for each operating system are available on Powerlink. These provide the steps needed to setup a host to use Navisphere Host Agent. Note that Navisphere Host Agent is not supported on TRU64, OpenVMS, and ESX 4.x. In addition, the Release notes for EMC Navisphere Manager contain the release notes for Agent. Please review all documentation prior to installing and setting up Agent. 

Host Connectivity Guide:

Home > Support > Technical Documentation and Advisories > Host Connectivity/HBAs > Installation/Configuration

Support By Product:


Customized Documentation - useful for creating a Procedure - for CX4-Series - for CX3-Series and CX_Series - for AX4-5


Below are the current solutions for Navisphere Host Agent - some of these may be for older releases. Please check the solution for the version, if available.


Problems with Agent and host registration can be broken down to three areas:


  1. 1.        Connectivity issues – the IP connection between the host and the array – this is the most common problem. Agent uses TCP port 6389 - make sure this is not blocked by firewalls. Make sure you can ping from the host to the array and from the array to the host to check for routing issues.
  2. 2.        Installation issues – is the correct version of Agent installed and running - make sure that the latest version of Agent is installed. If using the Microsoft iSCSI Initiator, you should have PowerPath installed before you connect the host initiators (NIC's) to the array. In the Log On session in the Targets tab, the "Log on to Target" screen has two check boxes - one for persistent connections (restore on reboot) that the other to "Enable Multi-path". Do not check this box unless you have installed PowerPath first (or other multi-path software), otherwise the initiators will not register with the array. See emc149771 for issues with paths not connecting to correct Storage Group.
  3. 3.        Code issues – is there a code issue with Agent - this is not common


Navisphere Server Utility


emc163338 “Unable to set targets in Navisphere Server Utility for new iSCSI setup.”



Best Practices and general configuration information


emc99467 "What are the Initiator, Arraycommpath, and Failovermode settings for PowerPath, DMP, PVLinks, and native failover software?"
emc47922 “Changing IP address or host name on server or workstation connected to a CLARiiON array”

emc62479 “Ensuring Navisphere Agent binds to correct NIC in multi-homed server with multiple NICs”

emc66921 "What is the difference between the Navisphere HostIdFile.txt and agentID.txt files?"

emc60301 “What file does Navisphere use to identify a connected host?”

emc70909 “How can I change the IP address that Navisphere uses if my AIX, HP-UX, Solaris, or VMware ESX host has more than one IP address?”

emc75149 “How much server memory does Navisphere Agent consume?

emc95542 “How do I stop and start Navisphere Agent on my operating system (OS)?”

emc63224 “How do I configure Navisphere Agent in a Windows NT or Windows 2000 clustered environment?”

emc101128 “How to set the agent.config file for monitoring a CLARiiON CX-Series array?”

emc104347 “Can the Navisphere Agent and EMC ControlCenter Master and Host Agent co-exist on the same server?”

emc113694 “Successfully installing newer version of Navisphere Agent”

emc125015 “How to register a host in Navisphere Manager with Navisphere Agent”

emc130877 “How to change the host name and IP address from Navisphere Manager without Navisphere Agent running on the host”

emc138155 “How to find the version of Navisphere Agent installed on a Windows host”

emc142354 “Navisphere reports 'Host agent not reachable.”

emc166066 “When must the Navisphere Host Agent be upgraded to maintain compatibility with the CLARiiON Array Agent?”

emc210431 “How to perform an unattended installation of Navisphere Agent on a Windows host”

emc249165 “Where can I find the CLARiiON Navisphere Host Agent download on Powerlink?”
emc293394 "Several hosts are showing host agent not reachable or connection registered manually"



emc59176 “Why is a Navisphere Agent poll causing a CPU usage spike of 100% on a UNIX or Microsoft Windows server?”

emc149771 "Storage Group shows ~management in Initiator information instead of the actual Storage Group."


emc76040 “Is a host-based Navisphere Agent required for CLARiiON FC4700 and CLARiiON CX-Series arrays?

emc100772 “How to determine the revision of Navisphere Agent on a CLARiiON array to troubleshoot 'caller not privileged' error”

emc104385 “HBA’s will not register from host using navicli register command.”

emc105581 “Compatibility between versions of Navisphere Host Agent and Navisphere Manager”

emc109385 “Why is Navisphere Manager displaying incorrect host information inside one or multiple Storage Groups?”

emc110903 “Navisphere host Agent not reporting any information about in host in Navisphere Manager”

emc111522 “Navisphere host Agent starts but does not run.”

emc125604 “How to resolve 'agent not privileged' when all CLARiiON SPs are entered into the agent.config file on the host”


emc196269 "Navi Agent cannot register host HBAs on FC-integrated NAS system"

emc224109 “'Navisphere Agent Service Installation Failed. (5)”

emc246406 "Why did the Failover Mode settings on my CX4 series array change?"

emc253973 "Navisphere GUI does not show "U" mark against manually registered hosts."




emc52737 “Navisphere Manager cannot identify the IP address of host.”

emc103595 “Resolving 'Initiator Failure' when adding a Target Portal in Microsoft iSCSI Initiator”

emc106811 “Navisphere Agent halts on Windows Management Station.”

emc112907 “How to  remove Navisphere Agent from Windows 2000 or 2003 registry”

emc130625 “Why is Navisphere Agent logging 'EV_FileTransferFactory::_setUpPathList() - Could not create NDU dir'?”

emc143959 “Navisphere Agent on one host seems to be running but is not responding.”

emc147487 “Unable to install Navisphere Agent on Windows 2003 hosts”

emc151529 “Host Agent not reachable error on CX700 array”

emc180193 “Unable to perform silent installation of Release 26 Navisphere host agent on Windows 2003 host.”

emc210431 "How to perform an unattended installation of Navisphere Agent on a Windows host"

emc212915 “How to install the Navisphere Host Agent on a Windows Server 2008 Core system”

emc213774 “Host appears as unmanaged after upgrading Navisphere Agent in a Microsoft Windows Cluster environment.”
emc213268 "Unable to use Navisphere Host agent to register a Microsoft Windows Server 2008 with native MPIO on a CLARiiON array"


emc226288 “Navisphere agent installation removes components of other applications on Windows 2003 64bit OS (German).”

emc231699 “Agent Main exception --Receive request failed.  Err: Estream construct failed. Err: EMULSocket::recv()”

emc234729 “Why is the local LAN NIC not registering on the CLARiiON array with the correct IP address when using Windows 2008 Clusters?”

emc242625 “Some hosts show a "U" in Navisphere Manager GUI.”

emc266037 "Navisphere reports "U" for Windows 2008 SP2 servers"

emc262715 "Navisphere agent keeps on terminating unexpectedly on Windows hosts."


VMware ESX


emc241869 “Where do I find information about using the Navisphere Host Agent for VMware”

emc259971 "Cannot claim VMware NMP devices after installing PowerPath on ESX hosts."

emc262738 "Why is the failover mode on the array changing for 4 (ALUA) to 1 after an Storage Processor reboot or an NDU?"
emc291503 "Correctly configuring ESX or ESXi failover path policy with VNX or CLARiiON failover setting"
emc292282 "Why does my VMWare host have both Host LUN 0 and LUN Z?"
emc293697 "Initiators of one ESX host will appear in another ESX host resulting duplicate entries."




emc60655 "How to manually register an HBA in Red Hat Linux server"

emc146692 “Why does Navisphere Manager display a Linux host's IP information incorrectly?”

emc153699 “Navisphere Agent will not start on a Linux host.”

emc188915 “Dependency errors while installing Navisphere Host Agent (Linux) v6.”


Sun Solaris


emc81452 “Why is Navisphere Agent for Solaris causing internal DVD drive to report an error?”

emc102334 “Navisphere Agent running on a Sun Solaris 9 host fails to register with Navisphere.”

emc105048 “Is Navisphere software required when hosts are on different networks?”

emc114860 “How to make a Solaris host with Leadville drivers and firmware automatically register with a CLARiiON array”

emc156204 “Is there a version of Navisphere Agent that will run on Solaris x86?”
emc302908 "Why is my new SUN Solaris host, using EMC Host Agent, not registering with array?"




emc88512 “Cannot start Navisphere Agent on HP-UX host”

emc90064 “What is the meaning of an 'EV_AGENT[1990]: Line Not Parsed, Line#23 ^M' error when starting Navisphere Agent?”

emc91624 “Removing Navisphere Agent from HP-UX host”

emc93717 “Starting Navisphere Agent on an HP-UX host”

emc140267 “Navisphere Agent generates core dump file when starting on HP-UX host.”

emc181122 “Initiator type changes when HP-UX host booted.”
emc306125 "Why is a HP-UX host reported in Unisphere with a failed HAVT status?"




emc91762 “How to update HBA entries after an AIX hostname, IP address, or HBA was changed”

emc92218 “Why can't HBAs be automatically registered in Navisphere Manager for an AIX host?”

emc113033 “Starting naviagent crashes AIX (VIO) server.”

emc125609 “Navisphere Agent 6.16 and 6.19 core dump when started on AIX host.”
emc289659 "Commands related to the AIX ODM (lspv, lsattr, lsdev, lscfg) stopped working on AIX host attached to CX4 or VNX storage system"
emc285951 "CLARiiON Unisphere Host Agent installation on AIX host results in ODM corruption."

emc286743 "AIX:CuAt is blank after starting the Unisphere agent."




emc161266 “Navisphere Agent for NetWare fails to auto-register the HBA in Navisphere.”




emc125927 “Is Navisphere Agent/CLI for Tru64 or OpenVMS servers supported?”




emc131512 “Can I use the AX100 version of the Navisphere Server Utility after enabling Release 19 Navisphere Manager?”




emc206118 “ETA emc206118: CLARiiON: Resolving  'stale' event notifications from CX and CX3 Series storage systems running FLARE Release 26”


For more information on this, refer primus solution “emc254967”.