Yes, as Zimbra's HSM and the ZxPowerstore are not incompatible.
There are, however, some basic measures to be observed in order to avoid the two components to "step on each other's foot":
- Zimbra's HSM and ZxPowerstore share the same policy, so you won't be able to configure different policies for the two components.
- Don't run Zimbra's own `zmhsm` command, either manually or through scheduling, when ZxPowerstore's `doMoveBlobs` operation is running.
- Zimbra's HSM and ZxPowerstore share the same volumes and "current" settings, so you won't be able to apply the same policy to different stores by running the two components one after the other.