Drivers multipath (update XIV)

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Hi,

 

Will soon update the XIV storage for version 10.2.2 and we will upgrade to10.2.4.c. Linux servers that make use of storage through XIV are Red HatEnterprise Linux 5.7. In theory, RHEL 5.7 do not need to have any problem connecting to the XIV. But my question is whether or not I should keep my RHEL5.7 In multipath driver who brings or should now install IBM provide?

 

Thanks!

Jose Antonio Vico Palomino's picture
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Responses

John Ruemker's picture Red Hat Guru 4815 points
4 January 2012 3:51 PM

Hello,

I am very sorry for the lack of response on this thread until now.

If you are not experiencing any problems with device-mapper-multipath, I recommend just sticking with it.  The multipath drivers supplied by IBM may add additional dependencies and/or steps during installations/updates, whereas our product works out-of-the-box.  device-mapper-multipath is integrated into anaconda, should you choose to install to a multipath device, whereas this may become more complicated or impossible with a 3rd-party solution.

 

If there is some issue that prompted you to consider switching, let us know what it is.  We may already have a solution have for you, and if not, we can work on coming up with one.  Otherwise, if its working fine, I would just stick with device-mapper-multipath.

 

Regards,

John Ruemker, RHCA

Red Hat Software Maintenance Engineer

Online User Groups Moderator

EK Active Contributor 101 points
4 January 2012 4:06 PM

H jose,

 

I work allot with XIV and IBM products.

The XIV HAK is a set of scripts that modify RHEL /etc/multipathd.conf files.

It does not add any additinal modules.

however its a must to use it in production environment is it will make your work much easier.

during installation you can use the mpath option and start from there.

 

you can use unattand installation of XIV HAK software.

 

Please use this link - the most updated version:

- TITLE: IBM XIV Host Attachment Kit for RHEL, Version 1.7.1

- URL: http://www.ibm.com/support/fixcentral/quickorder?product=ibm/Storage_Disk/XIV+Storage+System+(2810,+2812)&fixids=IBM_XIV_Host_Attachment_Kit_for_RHEL_v1.7.1&source=myna&myns=s028&mynp=OCSTJTAG&mync=E

- ABSTRACT: The IBM XIV Host Attachment Kit (HAK) for RHEL is a software pack that simplifies the task of connecting an RHEL host to the IBM XIV Storage System. The HAK provides a set of CLI-based tools that automatically detect any physically connected XIV storage system (single system or an array), define the host on the XIV storage system, and apply best-practice native RHEL multipath configuration.  After the connection is established, XIV-based storage volumes can be mapped to the host without any additional manual configuration, and can be accessed and used from the host for a range of storage operations.