Home > Veeam B&R, VMware, vSphere > vSphere 6 CBT Bug–and patch now available.

vSphere 6 CBT Bug–and patch now available.

Recently a CBT bug was identified with vSphere (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2090639) which involved VMDK disks extended beyond a 128GB boundary.  I originally found out about it via a Veeam weekly newsletter, and in Veeam Backup & Recovery v8.0 Update 2, a workaround was available. 

It seems there is also a specific bug related to vSphere 6 specifically.  (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2114076)  This bug doesn’t require extending the VMDK, as it relates only to CBT.  The workaround here seemed to be to disable CBT – which of course affected backup windows in a big way.

This bug is now fixed in http://kb.vmware.com/kb/2116125, and should be downloaded, tested, and verified in your environments if you’re an early adopter of vSphere 6. 

You should be able to find patch in VUM, so apply soon. 

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Categories: Veeam B&R, VMware, vSphere
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