How to add/extent a VMDK storage

I've just added a VMDK storage using:

http://www.experts-exchange.com/Software/VMWare/Q_28360518.html

By mistake assigned only 10g to it, because was not sure, will it work or not, now it's all exhausted.

Have already installed Oracle Gird (running too) and when was installing Oracle db, gave this error.

Now the question, can I add or extent the existing, without shutting down vms or just suggest/guide, what are my best options to proceed further with my Oracle db installation too.

Thanks & much appreciated.
Mushfique KhanDirector OperationsAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
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Subhashish LahaCommented:
You can increase the VMDK size by editing the VM settings but you will require a reboot of Guest OS to reflect the new disk size. After reboot, you can extend the Partition size in Guest OS.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
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Mushfique KhanDirector OperationsAuthor Commented:
I shutdown the vms and extended the space and now when tried to start, getting this error, changed back the size to original too ... 10g, but still error.
error.JPG
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Mushfique KhanDirector OperationsAuthor Commented:
I followed Subhashish Laha comments only :(
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I mean when you configured the VMDK Sharing, did you use this article and configuire

Mutli Writer...

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1034165
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AbhilashConnect With a Mentor BloggerCommented:
You need to enable Multi-writer flag so that the VMDK allows simultaneous access.
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Mushfique KhanDirector OperationsAuthor Commented:
I just followed this article, did as is and all worked too:

http://vpirate.in/2013/09/01/clustering-using-sharing-of-vmdks-between-virtual-machines/

was able to install Oracle Grid and now doing Oracle db, when out of space error raised.
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AbhilashBloggerCommented:
Did you read this at the end of my blog post

You might want to turn the Multi-writer flag in the advanced options of VM so you can let the machines write to the disk. Follow the below link for the same

You are getting a error related to multi-writer flag. Enable it.
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Mushfique KhanDirector OperationsAuthor Commented:
but how Abhilash Hb ... can you please, but in simple steps/language, thanks.
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AbhilashBloggerCommented:
In the vSphere Client, power off the virtual machine, go to Edit Settings > Options > Advanced > General > Configuration Parameters. Add rows for each of the shared disks and set their value to multi-writer.

Add this entry in Configuration parameters
scsi1:0.sharing = "multi-writer"
scsi1:1.sharing = "multi-writer"

Follow the steps in this KB
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1034165
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Mushfique KhanDirector OperationsAuthor Commented:
still error (attached)
error2.JPG
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Mushfique KhanDirector OperationsAuthor Commented:
do I need to put " " or not?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
By extending the disk, through the vSphere Client it has changed the virtual machine disk format, from eager zeroed thick disk format to lazy zeroed thick disk format

(well actually  it's the extended part, which is lazy!)

lazy zeroed thick disk format are not supported for Clustered Disks.

see this VMware article


A virtual machine fails to power on with the error: Thin/TBZ disks cannot be opened in multiwriter mode. VMware ESX cannot open the virtual disk for clustering.


You will now have to create a new virtual disk in eager zeroed thick disk format

vmkfstools -d eagerzeroedthick -i <virtual-disk-source>.vmdk <virtual-disk-target>.vmdk

and then use this new disk, in place on the old disk, in your configuration, by removing the original disk from the VM (do not delete from disk), and then adding this new disk, you have created, make sure the same SCSI ID is used in this operation.
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Mushfique KhanDirector OperationsAuthor Commented:
thanks Andrew Hancock & Abhilash Hb, was able to create the db :)
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