Comment WOM (Score -1) 357
It very well could be the device went from being read and write to read *or* write. I guess we all hope it at least becomes read only (ROM). In the case of the log drive, perhaps it became write only (WOM).
Of course, I'm kidding. But it reminds me of the Signetics incident as reported on Wikipedia:
Out of frustration with the long and seemingly useless chain of approvals required of component specifications, during which no actual checking seemed to occur, an engineer at Signetics once created a specification for a write-only memory and included it with a bunch of other specifications to be approved. This inclusion came to the attention of Signetics management only when regular customers started calling and asking for pricing information. Signetics published a corrected edition of the data book and requested the return of the 'erroneous' ones.