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VMware vSphere 4 - Datastore:

Posted on 2011-03-07
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Last Modified: 2012-05-11
Need help guys,

I'll keep it simple, I have (x2) HP ProLiant DL360 G5 both running ESXi 4.0. How can I enable the internal drives to show on both systems as a datastore share? The first server cannot see the second server's datastore! Any easy solution?

Each Server has ESXI installed along with an 'HP Serial Attached SCSI Disk' internally!

I cannot add storage via the 'Disk/LUN or NFS' as the disks are internal within each ESXI system

Kind regards,
Michael
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Question by:Excel
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by:coolsport00
coolsport00 earned 167 total points
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And the simple answer is you can't...it's local storage, so it can't be shown on the other host.

~coolsport00
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by:Matt Coughlin
ID: 35059753
We use a central ISCSI SAN solution. Then all of our ESX servers use that as datastore. The actual servers only have to worry about network, cpu and memory loads, not disk space. Plus with vcenter (and appropriate licencing) you can have the vm's move from one server to another (sometimes without powering down) if one server is under more load than the other. (v-Motion, High availablility and Fault Tolerance).

Also if you run Vcenter, you can add both of your ESX (or ESXi) servers into it and manage both from one console. Very convienient.
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Matt Coughlin earned 167 total points
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I guess if you don't want to do all that (especially since it can get pricy) you can have each machine run a VM and load the FreeNas or Openfiler OS onto it. This will make the VM become an ISCSI target. then have each esx server connect to each other's ISCSI share as datastore. I used to have a setup sort of like this before we bought the SAN.
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by:coolsport00
ID: 35059791
Correct...any SAN is the only way to have shared storage across multiple hosts, but to answer the question in this post, there isn't a way to make local storage in 1 host, be 'seen' in a 2nd host.

~coolsport00
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by:Matt Coughlin
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Correct, just offering alternatives...
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by:danm66
danm66 earned 166 total points
ID: 35060378
you could also use the HP/Lefthand virtual SAN software which allows you to utilize your local storage as a SAN that can be seen by all hosts.  I would question the ability to keep the data intact with only 2 hosts should one of them go down, though.
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or StorMagic SvSAN for FREE

http://www.stormagic.com/SvSAN.php
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