VM clone takes a long time to complete when VM has ISO attached
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VM clone takes a long time to complete when VM has ISO attached

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Article ID: 418984

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Updated On:

Products

VMware vSphere ESXi VMware vSphere ESX 8.x

Issue/Introduction

VM clone takes 20+ minutes longer to complete when the source VM being cloned has an ISO attached.

Environment

VMware vSphere ESXi 8.x

Cause

Reading the ISO file takes a long time to complete.

/var/log/hostd.log reports logging similar to:

####-##-##T10:20:33.667Z In(166) Hostd[2100566] [Originator@6876 sub=Libs opID=mhvuikve-1107-auto-us-h5:70000482-85-01-c0cc sid=52a5ce91 user=vpxuser:#########\############] [NFC INFO]NfcFileRawClone: Cloning Raw File /vmfs/volumes/<UUID>/T<VmName>/<IsoName>.iso to /vmfs/volumes/<TargetUUID>/<TargetVmName>/<IsoName>.iso
####-##-##T36685431T10:48:47.246Z In(166) Hostd[2100566] [Originator@6876 sub=Libs opID=mhvuikve-1107-auto-us-h5:70000482-85-01-c0cc sid=52a5ce91 user=vpxuser:#########\############] [NFC INFO]NfcFileRawClone: Got EOF with source file '/vmfs/volumes/<UUID>/T<VmName>/<IsoName>.iso'

Resolution

Workaround:

Remove the ISO from the VM prior to cloning.

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