ii00907
Contributor
Contributor

Create RDM

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Good Evening,

I have a question for me very important.

I know Raw device and vmdk but i don't know for create a RDM , is possible info?

How can I create a RDM?

IF SO WHERE CAN I FIND THE APPROPRIATE DOC?

Sorry for my English.

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Texiwill
Leadership
Leadership

Hello,

I would start by reviewing http://www.vmware.com/pdf/vi3_35/esx_3/r35/vi3_35_25_admin_guide.pdf for information on how to create RDMs. There are at least 2 ways, one using vmkfstools and the other using the VIC.


Best regards,

Edward L. Haletky

VMware Communities User Moderator

====

Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.

SearchVMware Blog: http://itknowledgeexchange.techtarget.com/virtualization-pro/

Blue Gears Blogs - http://www.itworld.com/ and http://www.networkworld.com/community/haletky

As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization

--
Edward L. Haletky
vExpert XIII: 2009-2021,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill

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abaum
Hot Shot
Hot Shot

In general,

  1. Create a LUN on your SAN and present it to your host(s). Rescan your host(s) so that it sees the new LUN, but do not create a VMFS partition.

  2. Either create or modify an existing guest and Add a hard disk - when selecting a disk, choose the bottom option- RAW Device Mappings.

This works for VC2.5 U2/U3 and ESX 3.5 U2. Not sure about other versions.

adam

ctlong
Contributor
Contributor

The procedure provided by abaum is correct for ESX 3.0.X/VC2.0.X as well. However, if you havn't already, familiarize yourself with the different types of RDM access (i.e. physical vs virtual). Physical does not allow Vmware snapshots.

Also, double verify the vmhba path of the newly presented LUN before connecting the LUN to a VM.

Texiwill
Leadership
Leadership

Hello,

I would start by reviewing http://www.vmware.com/pdf/vi3_35/esx_3/r35/vi3_35_25_admin_guide.pdf for information on how to create RDMs. There are at least 2 ways, one using vmkfstools and the other using the VIC.


Best regards,

Edward L. Haletky

VMware Communities User Moderator

====

Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.

SearchVMware Blog: http://itknowledgeexchange.techtarget.com/virtualization-pro/

Blue Gears Blogs - http://www.itworld.com/ and http://www.networkworld.com/community/haletky

As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization

--
Edward L. Haletky
vExpert XIII: 2009-2021,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill

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