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cciavola
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Vmware vSphere 5 Essentials Plus and creating a disk bigger the 2 terabytes

I have read where you can create a disk bigger the 2 TB with VMware version 5. not sure how.  I have a delll r510 with a enclosure with 15, 600 gig drives. using raid 6. I can see 7 tb's in vsphear.But  I can only create 2tb disks. Is there something in Vsphear that allows you to create drive bigger then 2 tb's. the goal would be one 7 tb drive on a virtual windows 2008 server..
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

8/22/2022 - Mon
motnahp00

I'm still using ESX 4 but my solution was creating 1.9 TB volume and expanding it.
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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cciavola

ASKER
You talking about expanding it in Vsphear, through edit settings, disk provisioning? If so it will not go beyond 2048 GB.
motnahp00

I was referring to the data store volume.
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

That's BECAUSE 2TB IS THE MAX!
motnahp00

You will see the extent feature to expand your volume.
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

Unless you have a SAN - No.

OR, create 6 x 2TB virtual disks in the VM, and SPAN them using Windows 2008 Disk Management.
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cciavola

ASKER
I am using direct attached storage via sas. I did try setting up a disk using raw device mapping, but it was greyed out. Is there a advantage or disadvantage in using raw mapping as opposed to spanning?
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

You can only use RDM with SAN presented LUNs, using RDM would be the preferred method of using large disks.

Spanning is messy and just a workaround, some people do it, but remember if you lose a virtual disk, you will lose access to the entire 7tb volume.
cciavola

ASKER
RDM seems the way to go, just trying to figure out why the option is greyed out in vsphear, vmware KB seems to be down.
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

Do you have a SAN?
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cciavola

ASKER
I am using attached storage via SAS. so now I can assume this would be the reason?
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

Correct, no SAN, no RDM
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