2 ms·
All you really need to do is write one pass of zeros on them. That will prevent anyone but a very dedicated adversary with expensive equipment from recovering a
by SoftTalker 1y ago
All you really need to do is write one pass of zeros on them. That will prevent anyone but a very dedicated adversary with expensive equipment from recovering any data, especially on TB scale drives.
Can still take hours per drive though, which is why a lot of people skip it.
- edoceo 1y agoI make a random 1MB chunk, then write that all over the drive, at overlapping offsets. I've been told that really clears it. On IDE-spinning-rust disks I trusted it, not sure if I should trust these modern SSD
- p1mrx 1y agoWhy rewrite the same 1MB chunk, instead of making new random chunks? Redundant data at least opens the possibility that the drive could deduplicate.
- edoceo 1y agoCause making new random was taking too much time.
- throwawaymobule 1y agoPretty sure most modern computers can generate random data faster than they can write to a disc.
- krior 1y agoOr encrypt it and just trash the encryption header.