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Virtual Disk Mapping to Linux

 
nasmel
Frequent Advisor

Virtual Disk Mapping to Linux

Hi

I have a virtual disk presented to te linux machine from a HP EVA 4000 storage .
In Linux machine shows multiple paths to the disk (/proc/scsi)
how to identify the exact path and how to make them as a single path\
6 REPLIES
Florian Heigl (new acc)
Honored Contributor

Re: Virtual Disk Mapping to Linux

HP offers a multipath kit for linux, I don't have the url here, but I can post it for You tomorrow.

In essence each path is assigned a unique name and those are tied together using udev. The DataCenter Linux working group had more documentation on that, but it was gone last time I checked, so unless you know your ways around udev I suggest you just wait a day :)


florian
yesterday I stood at the edge. Today I'm one step ahead.
Ivan Ferreira
Honored Contributor

Re: Virtual Disk Mapping to Linux

Here is the link:

http://h18006.www1.hp.com/products/sanworks/softwaredrivers/multipathoptions/linux.html
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Florian Heigl (new acc)
Honored Contributor

Re: Virtual Disk Mapping to Linux

HP LMP (Linux MultiPath) - see http://docs.hp.com/en/8859/udev_sglinuxconfig.pdf for more information

(don't know if this is the same as posted by Ivan, I'm a bit in a rush now)
yesterday I stood at the edge. Today I'm one step ahead.
Florian Heigl (new acc)
Honored Contributor

Re: Virtual Disk Mapping to Linux

(just checked - no it's not)
yesterday I stood at the edge. Today I'm one step ahead.
nasmel
Frequent Advisor

Re: Virtual Disk Mapping to Linux

my HBA card is Qlogic and my Linux kernel is 2.6.In the above link i can find qlogic driver for 2.4 kernal,will it work with 2.6 kernel or where i can download it
Rob Leadbeater
Honored Contributor

Re: Virtual Disk Mapping to Linux

Hi,

The drivers available here:

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=12169&prodSeriesId=439556&prodNameId=315741&swEnvOID=1080&swLang=8&mode=2&taskId=135&swItem=co-47070-1

contain versions for both 2.4 and 2.6 kernels. If I recall correctly, you have to remember to select the failover option when installing the drivers...

You might also need to ensure that the firmware on the QLogic cards is at the latest release to enable failover support.

Hope this helps,

Cheers,

Rob