PowerPath installation is an integral part of an EMC VNX™ Operating Environment (OE) and CLARiiON®setup and configuration procedure. For information on when to install PowerPath on a host attached to a VNX OE or CLARiiON storage system, refer to the: ◆VNX OE Storage-System Support website (www.EMC.com/vnxsupport).
- Emc Powerpath For Solaris Installation And Administration Guide
- Emc Powerpath Installation Guide Tool
Follow the steps in Chapter 1 and Chapter 2 of the EMC PowerPath Viewer Installation and Administration Guideto install PowerPath Viewer and to enable the management component. The management component is included with the PowerPath download package and is enabled by default. Okay, time to install. If you installed the previous PowerPath/VE using Update Manager, go back to Home - Hosts & Clusters - pick a host of your choice, Update Manager tab, right click on the previous attached baseline for your old PowerPath install and detach it.
This is all covered in the vSphere Storage Guide which I will aim to summarise here. ESXi uses storage APIs known as the Pluggable Storage Architecture (PSA) to manage storage multipathing. Useful terms to understand in relation to PSA include:
- PSA – Pluggable Storage Architecture
- NMP – Native Multipathing Plugin
- PSP – Path Selection Plugin – Handles path selection
- SATP – Storage Array Type Plugin – Handles path failover for a storage array
The default NMP plugin provided by VMware has 2 sub-plugins – SATPs and PSPs. These are also provided by VMware, although there are also third party ones available. In addition, a third party may also make their own multipathing plugin available, which can replace VMware’s NMP. EMC PowerPath is an example of this.
Installing a PSA Plugin
As stated above, PowerPath is an example of a PSA plugin you may want to install. It’s recommended that you put the host into maintenance mode before installing the plugin. After downloading the PowerPath/VE trial, extract the contents of the zip file. You can download the software here. Once you have extracted the files, copy the locate the VMware zip file and secure copy the files to the host. You could also upload the files to a vMA or to another server with vCLI installed.
Place host in maintenance mode or move the VMs to another ESXi host then perform the installation by running: esxcli -s ESXiHostAddress software vib install -d /PathtoExtractedZipFileContents/index.xml:
Once the install is complete you will need to reboot the host.
You can check out the plugin by running:
You can also install PowerPath using Update Manager, or include it as part of an custom image for use with AutoDeploy. You can read more about configuring plugins in this post.
Question: How do I install and configure EMC Powerpath software on Linux environment?
Answer: Before you start EMC powerpath installation and configuration, make sure HBA cards are installed on the server and Fiber channel switches are zoned properly.
1. Install EMC Powerpath on Linux
Download the Powerpath software from EMC powerlink website. If you’ve purchased EMC support, you should have access to powerlink.
Emc Powerpath For Solaris Installation And Administration Guide
In the following example, EMC Powerpath 5 ( EMCpower.LINUX-5.3.0.00.00-185.rhel5.i386.rpm ) is installed on Red Hat 5. (for CLARiiON Array)
2. Register EMC Powerpath
Before you can use the EMC powerpath software, you should register it using the EMC Powerpath License key received when you purchased the software from EMC.
Use emcpreg tool to install EMC Powerpath license key as shown below.
3. Verify EMC Powerpath Registration
Use EMC powermt command to check the registration as shown below.
4. Verify Multiple Paths
Once you’ve installed EMC powerpath, execute powermt display dev=all as shown below to verify whether multiple paths as displayed accordingly.
Emc Powerpath Installation Guide Tool
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