Pegasus R4 – R6 issues

The Pegasus R4 and R6 RAID units from Promise which are connected to the Mac via Thunderbolt are reported to be intermittently disconnecting, a number of users have said that the drives randomly disconnect, both Promise and Apple are said to be looking the issue.
A couple of users have said the the problems appear to be caused by phone interference, this can be replicated by holding the phone close to the Thunderbolt cable, as calls are received the drives disconnect. One user reported to have cured the problem by wrapping the cable with tin foil.
By Peter Argyle