Dell AX4-5 Specifications download pdf (Page 14)

VMware does not support booting ESX Server over iSCSI storage using the software initiator; however, it does

support booting VMs residing on iSCSI LUNs, which is a requirement for VMotion.

In addition, a virtual machine can install an iSCSI software initiator and connect directly to iSCSI ports on

the CLARiiON storage system. Thus, a VMware ESX server can be connected (via Fibre Channel or

iSCSI) to a CLARiiON, and a VM on the ESX server can also be connected (via iSCSI) to the same

CLARiiON.

With the FLARE

29 release, the number of initiators that login to the CLARiiON has been increased; this

allows more virtual machines to directly connect to CLARiiON systems using iSCSI within the VM or

NPIV technology (discussed later), thus providing scalability improvements.

Navisphere management

Navisphere Agent (for CX, CX3, CX4) arrays) or the Server Utility should be installed on the ESX service

console to register ESX 3.x servers with the CLARiiON storage system. The VMware Navisphere Agent

installed on the ESX provides device mappings information and allows path registration with the storage

system. It does not provide the device mapping information from the virtual machines since the agent is

installed on the ESX.

Navisphere Agent and Server Utility software packages are not supported on ESX 4.0, instead the

CLARiiON storage system initiator records are automatically registered when ESX reboots or when a

rescan of the ESX 4.0 server occurs. The same thing happens on ESXi, which does not have a service

console to install or run the host agent or server utility. For this reason, manual registration is not necessary.

It is important to make sure that the ESX host is properly configured with an IP address and a hostname to

ensure proper registration with the CLARiiON storage system. If you have multiple service console NICs

configured, ensure they have a valid IP address. Check the /etc/hosts file on the ESX server to see if the

NICs are properly configured and do not have any 127.0.0.1 entries.

Navisphere CLI and array initialization software for the CX and AX4 series storage systems can run on the

ESX Server console for ESX 4.0 and ESX 3.x servers, as well as the individual virtual machines.

For Navisphere Agent/CLI to work with ESX 3.x and for Navisphere CLI to work on ESX 4.0 when

connected to a CLARiiON storage system, the ports for agent and/or CLI need to be opened. This can be

done by executing the following command on the ESX service console:

# esxcfg-firewall –o -–openPort <port,tcp|udp,in|out,name>

For example:

esxcfg-firewall –o 6389,tcp,in,naviagent

There is also a shell script that automatically opens the firewall ports for Navisphere Agent. For detailed

information on which ports to open, see the CLARiiON Server Support Products for Linux and VMware

ESX Server Installation Guide available on Powerlink

, EMC’s password-protected extranet for customers

and partners. When Navisphere Agent is installed on ESX 3.x servers, rescan the VMware ESX server and

then restart the agent so that it communicates with the storage system and sends updated information.

When Navisphere CLI is installed on virtual machines configured on ESX 3.x, some commands (for

example, lunmapinfo or volmap) that require Navisphere Agent must be directed to the ESX service

console and not to the virtual machines. Check the Navisphere Agent/CLI release notes on Linux and

VMware for more details.

Figure 3 shows the device mapping information that is listed when the

lunmapinfo command is issued from Navisphere CLI on a Windows virtual machine. This command is

directed to the agent residing on the ESX service console. For ESX 4.0 or ESXi servers, the volmap

command is used to get device information using the following command.

# naviseccli –h 10.14.15.16 server –volmap –host 10.14.15.140

EMC CLARiiON Integration with

VMware ESX Server

Applied Technology 14

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