Yes, this affects Folsom. I believe this was a new feature for Folsom, so it would not affect Essex or Diablo. The code was added on 2012-05-16 (May).
There are similar concerns in nova-volumes / cinder, but this is slightly better handled there. They wipe the device on deletion, but there are edge-cases where that is insufficient. (That warrants another bug report, actually)
Yes, this affects Folsom. I believe this was a new feature for Folsom, so it would not affect Essex or Diablo. The code was added on 2012-05-16 (May).
There are similar concerns in nova-volumes / cinder, but this is slightly better handled there. They wipe the device on deletion, but there are edge-cases where that is insufficient. (That warrants another bug report, actually)