Virtualization

AppAssure Multiple SCSI controllers after export to VM

So far in using AppAssure in several environments, it works pretty well and seems to shine with VM to VM exports.  It does like most backup software though have a few quirks to deal with.  If you are an AppAssure user in your environment, you may have experienced or seen the following scenario after exporting a recovery point to VM – mulitple SCSI controllers!

 

appassurescsi01

As you can see above, there are (4) SCSI controller that appeared after exporting to a VM.  What is behind this?  It seems the culprit is the CD-ROM drive.  Below is a shot of what happens when I removed the CD-ROM drive from the virtual machine properties and then “OK” the changes.  When you take a look back at the devices on the VM, you no longer see the extra SCSI controllers, only the SCSI controller for your hard disk.

appassurescsi02

After adding a CD-ROM drive back to the virtual machine, I still have only one SCSI controller.  Evidently, it seems that the export of the recovery point creates the extra SCSI controllers in emulating the optical device.  I have yet to find the reason behind this, but if you guys run into the same situation and wonder what is going on, the optical drive is most likely your culprit.

appassurescsi03

All in all I haven’t seen any negative repercussions from removing the CD drive and replacing other than the hassle it takes to do this little step.  However, it annoys me to have ghost SCSI controllers on my VM so I much prefer having things cleaned up a bit.

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Brandon Lee

Brandon Lee is the Senior Writer, Engineer and owner at Virtualizationhowto.com and has over two decades of experience in Information Technology. Having worked for numerous Fortune 500 companies as well as in various industries, Brandon has extensive experience in various IT segments and is a strong advocate for open source technologies. Brandon holds many industry certifications, loves the outdoors and spending time with family.

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