Can Thunderbolt and Firewire co-exist?

The question: Are there any known problems with using an external Thunderbolt drive and occasionally switching between Thunderbolt and Firewire800 (via the TB to FW adapter)?
More detail: I'm considering the purchase of a thunderbolt external drive as a backup unit for a NAS. The plan is to use the unit mainly on a Mac with a TB port. However, it would be useful to have the option to use the Firewire 800 to Thunderbolt cable if/when access to the drive must be done using a Mac with only FW800 port.
TIA.

There should be no issues that arise from occasionally using an adapter or switching between FW and TB ports in that situation.  Basically, the device is just looking for a way to send and receive a bunch of zeroes and ones.  As long as you give it a way to do so, it's happy.

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