was there a related question about custom signatures? 😛
the commvault app was last updated in august, so it's possible something was changed in the latest incarnation that causes it to not be identigfied properly in App-ID, you could reach out to support to have this investigated (they'll need packetcaptures and logs to verify)
Or if you really hate dealing with support and simply want the traffic to identify as CommVault, you could do like I've done and simply utilize an Application override policy and setup the traffic to match to commvault. It's lazy and stops the inspection at Layer4, but I still get to yell at my backup admin for using an ass-ton of bandwidth 😉
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