VDP appliance

I have upgraded my vcenter 5.5 essentials to 6 and Essentials plus ESX hosts to 6 to deploy new full featured VDP appliance. I have re-purposed old server with DAS storage by deploying CentOS and created NFS share. I attached NFS share to all three ESX hosts and deployed VDP appliance on that NFS share. When I was trying to create the storage on NFS share using web access to VDP, it fails with error "Confirm that memory hot-add is enabled. If it is disabled then shut down the VDP gracefully to enable this feature or increase the amount of RAM". I already have more than adequate RAM but I do not see the hot-add option in VM settings or host advance settings. There is not documentation on VDP about any issues with NFS share? Does VDP only with works with ISCSI shares?
 
Also, when I was deploying VDP I used the same NFS storage share where I am planning to provision by backup storage and I did not get option for thick provisioning. Does appliance needs to be deployed on production ISCSI datastore and only provision storage VMDK to NFS storage provisioned from CentOS server?
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pchettriIT DirectorAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
We use VDP with iSCSI ansd NFS. Traditionally virtual machines deployed to NFS, will be Thin disks only, unless you have VAAI plugins for your NFS NAS, e.g. like NetApp, EMC etc


If you have not enabled Jumbo Frames support, and have Jumbo Frames support on Centos, and Network Hardware you should try and enable it, and see if performance is better.

see my EE Article, also applicable for ESXi 6.0 as well.

HOW TO: Enable Jumbo Frames on a VMware vSphere Hypervisor (ESXi 5.0) host server using the VMware vSphere Client


You need about 16GB RAM for VDP.

Hot Add options, are Enabled in VM Settings, Options.

With VDP be careful, the performance of the datastore meets the minimum requirement, otherwise it will fail, and be very slow, and the check points will never be validated.

It runs a performance check of your datastore, at installation.
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pchettriIT DirectorAuthor Commented:
I already have jumbo frame on all ESX host. But now I need to enable the same on Centos Bond interface. Either I would just add a line to bonded interface for MTU or add it to all interface...  First, I will try adding to bonded interface and restart the server to see how it reats
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if you have mixed jumbo frames on hosts and none on strorage this mismatch can cause issues.

best practice is all on or all off.
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pchettriIT DirectorAuthor Commented:
it started running after adding 12 gb of RAM. Thanks for your help.
Now I am working on making them thick provisioned disk instead of thin, which is a default option when I am using NFS. Trying to inflate them after provisioning, if it does not work. I will have to redeploy as think disk
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