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pitogo
Contributor
Contributor
‎09-20-2009 05:47 PM

3.51T RAW lun can't map when guest moved from 3.5 to 4.0

I had an ESX 3.5 cluster with a guest that had a RAW device that is 3.51TB clariion LUN. I moved the vmdk volume (clariion lun) and the RAW lun the guest uses to an esx4 cluster. The vmdk was openeded and guest was added to the ESX4 cluster however, the RAW device can't be mapped on any volue because of an error. It also had a smaller 400GB RAW lun that had no problem mapping as well as a few other guests that also had RAW luns that are 1.82TB.

"File ar01d1/ar01d1.vmdk is larger than the maximum supported by datastore 'CX4-LUN20-esx-cluster-rdm"

In the previous 3.5 cluster I had the map file stored with the guest on the same vmdk lun. What is going on here?!?! eeek The 3.5 cluster is now 400miles away and I can't move the guest back.

Do I have to format the vmdk with 16mb blocks? I didn't have to do what with esx3.5. I have a case open but I wanted to see if anyone here will answer faster than premium support.

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9 Replies
AntonVZhbankov
Immortal
Immortal
‎09-20-2009 11:41 PM

3.51TB LUN can't be mapped, since maximum supported size is 2TB.


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VMware vExpert '2009

http://blog.vadmin.ru

EMCCAe, HPE ASE, MCITP: SA+VA, VCP 3/4/5, VMware vExpert XO (14 stars)
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pitogo
Contributor
Contributor
‎09-21-2009 04:46 AM

Anton, Thanks but somehow I mapped in esx 3.5 and it was working very well with windows. We did a data center move, I just moved our CX4 and just added those luns to an esx4 cluster and boom it doesn't work. What a bomb!

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AntonVZhbankov
Immortal
Immortal
‎09-21-2009 05:05 AM

It is strange that it worked while it should not. Did you have all 3.5TB accessible from Windows?


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VMware vExpert '2009

http://blog.vadmin.ru

EMCCAe, HPE ASE, MCITP: SA+VA, VCP 3/4/5, VMware vExpert XO (14 stars)
VMUG Russia Leader
http://t.me/beerpanda
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pitogo
Contributor
Contributor
‎09-21-2009 05:18 AM

Indeed it was, windows formatted dynamic disk ntfs and we were writhing data to the full 3.5tb. It must have bee a bug to allow this now, am SOL. I will look at formatting a disk with 16mb blocks but I don;t think its supported.

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manfriday
Enthusiast
Enthusiast
‎09-21-2009 08:15 AM

What about using the microsoft iscsi initiator inside your VM to access that LUN?

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AntonVZhbankov
Immortal
Immortal
‎09-21-2009 09:23 AM

>What about using the microsoft iscsi initiator inside your VM to access that LUN?

That works with iSCSI only, not with fibre channel. Not sure what author is using.


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VMware vExpert '2009

http://blog.vadmin.ru

EMCCAe, HPE ASE, MCITP: SA+VA, VCP 3/4/5, VMware vExpert XO (14 stars)
VMUG Russia Leader
http://t.me/beerpanda
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pitogo
Contributor
Contributor
‎09-21-2009 09:44 AM

Thanks for the help. I spoke to support, 3.5 should have bombed but it didn't and 4.0 won't work with it. Foing to convert from RDM via FC to guest iSCSI on the VM to get the LUN mounted.

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AntonVZhbankov
Immortal
Immortal
‎09-21-2009 11:14 AM

If you consider any comment as helpful, please award points Smiley Happy


---

VMware vExpert '2009

http://blog.vadmin.ru

EMCCAe, HPE ASE, MCITP: SA+VA, VCP 3/4/5, VMware vExpert XO (14 stars)
VMUG Russia Leader
http://t.me/beerpanda
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TomHowarth
Leadership
Leadership
‎09-22-2009 05:35 AM

Was this guest actually assigned 2 RDM's one of about 2TB and one of 1.5TB and then spanned using dynamic disks?

Tom Howarth VCP / VCAP / vExpert
VMware Communities User Moderator
Blog: http://www.planetvm.net
Contributing author on VMware vSphere and Virtual Infrastructure Security: Securing ESX and the Virtual Environment
Contributing author on VCP VMware Certified Professional on VSphere 4 Study Guide: Exam VCP-410
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