vivath
Enthusiast
Enthusiast

shared virtual disk between multi VM

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Dear all,

I have one VM configured to share disk between two VM.

when i try to increase the shared disk. it is error.

Could you help advice me on that case?

Thank you for your comment.

vivath

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ShekharRana
Enthusiast
Enthusiast

If you are using multi- writer flag for the .vmdk than disk type should be eager zeroed and power down secondary VM when increasing shared disk size

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5 Replies
Mathieu_C
Contributor
Contributor

Possible to have the error ?

I think you talk about RDM, physical or virtual ?

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Finikiez
Champion
Champion

How do you share the disk?

Is it a vmdk with multi-writer flag or RDM disk?

What error do you get?

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vivath
Enthusiast
Enthusiast

hi thank you for your comment.

i have configure as multi-writter flag. not RDM.

the disk is configured as Thick provision lazy zeroed, and using iSCSI controller as Physical.

when i increase disk size, it alert : Incompatible device backing specified for device '0'. and cannot opening VM.

to be flexible using RDM?

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Rubeck
Virtuoso
Virtuoso

If using the multi- writer flag, the .vmdk needs to be eager zeroed... not lazy.

/Rubeck

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ShekharRana
Enthusiast
Enthusiast

If you are using multi- writer flag for the .vmdk than disk type should be eager zeroed and power down secondary VM when increasing shared disk size

View solution in original post

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