RanjnaAggarwal
VMware Employee
VMware Employee

Storage Vmotion in vsphere 4.1

I want to know in vsphere 4.1 CBT method is used by the storage vmotion so where the changed blocks information is kept in this case?

Regards, Ranjna Aggarwal
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5 Replies
sa2057
Hot Shot
Hot Shot

Hi,

The changed block information is stored along with the config file. Pl. check the specific vm file  where you can find .ctk.vmdk files. These are found for VM's which have CBT enabled. 

some backup solutions uses this process to save space on disk.

More info..

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=102012...

Thanks

SA

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RanjnaAggarwal
VMware Employee
VMware Employee

i want to know this in context of storage vmotion

Regards, Ranjna Aggarwal
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sa2057
Hot Shot
Hot Shot

Hi,

Pl. check "How Does VMware Storage VMotion Work? "  brief explanation

http://www.vmware.com/files/pdf/VMware-Storage-VMotion-DS-EN.pdf

Hope this helps.

SA

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rickardnobel
Champion
Champion

Thread moved from ESXi 5 to ESXi 4 forum.

Regards / Rickard

My VMware blog: www.rickardnobel.se
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Ranjana wrote:

I want to know in vsphere 4.1 CBT method is used by the storage vmotion so where the changed blocks information is kept in this case?

Good question, For each virtual disk and snapshot disk there is a .ctkfile. And during block level tracking they will be residing on both the datastores. Also, for this you should have ctk enabled for the vm.

Regards, ABFS
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