When working with our vSAN installation I came across two vital vSAN alerts that I think everybody should create. Without going into details we have had some problems with faulty hardware/software and I noticed that some events on the hosts did not result in vCenter Alerts. The events deal with errors in the checksum calculation and these events could be an indication of a potential problem ether with vSAN software or the disks.

After a backup proxy failure, some VM’s had “Migrate…” grayed out. The VM’s was running fine and removing the old backup snapshot did not solve the issue. When searching for this issue the following KB came up. https://kb.vmware.com/s/article/2044369 It states that the problem are due to invalid entries in the vCenter DB and the solution is to remove and add the VM to the inventory. Not the ideal solution, so after some test I came up with an idea.

When importing a OVA to vSphere 6.5 I got the following error: The quick fix is just to unpack the ova (I’m using 7-zip) and delete the .mf file and deploy the ova again and selecting all files. Change ova to SHA256 Download openssl to windows. Download and install ovftool from my.vmware.com Unpack the ova file. Remove the mf file. Create new SHA256 checksums: