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5 limitations – Avago Technologies MegaRAID Fast Path Software User Manual

Page 292

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Page 292

LSI Corporation Confidential

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July 2011

MegaRAID SAS Software User Guide

Chapter 6: MegaRAID Storage Manager Overview and Installation

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MegaRAID Storage Manager Support and Instal-

lation on VMware

NOTE: There is a known limitation that virtual drives that are created or deleted will not
be reflected to the kernel. The workaround is to reboot the server or to run
esxcfg-rescan

from COS shell.

6.5.4

MegaRAID Storage Manager

Support on the VMware ESXi Operating
System

This section outlines the product requirements needed to support the VMware ESXi
operating system. Classic VMware includes a service console that is derived from the
Linux 2.4 kernel, but with reduced functionality.

The MegaRAID Storage Manager server part cannot be installed directly in the VMware
ESXi operating system. Management is possible only through Common Information
Model (CIM) providers. These CIM providers integrated into the VMware ESXi system
build an interface between the hardware driver of the LSI MegaRAID controller and
remote applications, such as the MegaRAID Storage Manager software. Management is
performed through the MegaRAID Storage Manager software installed on a remote
machine (Linux/Windows).

VMware ESXi comes with the Small Footprint CIM Broker (CFCB) CIM Object Manager
(or CIMOM). A CIMOM manages the communication between providers, which
interacts with the hardware, and a CIM client, where the administrator manages the
system.

SFCB supports Common Manageability Programming Interface (CMPI)-style providers.
CMPI defines a common standard used to interface Manageability Instrumentation
(providers, instrumentation) to Management Brokers (CIM Object Manager). CMPI
standardizes Manageability Instrumentation, which lets you write and build
instrumentation once and run it in different CIM environments (on one platform).

Network communication is a key element for a proper communication between the
ESXi CIM provider and the LSI management software. Please make sure that the
network settings are correct by making the following changes:

For networks that do not have DNS configured, the “hosts” file in the machine on
which the MegaRAID Storage Manager software is installed must be edited as
follows:

a. Add an entry to map the VMware host’s IP address with the host name. This is for

the discovery process to happen correctly. In the absence of this entry, the
VMware host would be discovered as 0.0.0.0.

b. Add an entry to map its own IP address (not the loop back address) with the

Hostname. This is to ensure that the Asynchronous Event Notifications (AENs)
are delivered correctly.

For networks that have DNS configured, perform the following:

a. Provide the correct DNS server IP address when you do the initial configurations

for the VMware host.

b. In the hosts file of the machine on which the MegaRAID Storage Manager

software is installed, add an entry to map its own IP address (not the loop back
address) with the host name, to ensure that the Asynchronous Event
Notifications are delivered correctly.

6.5.5

Limitations

The following are the limitations of this installation and configuration.

No status information exists for the controller