Hard drives
From ThorxWiki
(Difference between revisions)
(slight expand) |
(moved magnet test writeup from Magnets page) |
||
| Line 1: | Line 1: | ||
testing on harddrives.... |
testing on harddrives.... |
||
| − | * Bring strong [[Magnets]] externally to drive and test for bitrot. Same without case? |
+ | == [[Magnets]] == |
| + | |||
| + | What I have never seen is testing of magnets on drives. Now, I have alot of nice strong rare-earth magnets, and I have some old drives which are all but ready to be decomissioned. |
||
| + | |||
| + | === Testing external magnetic effects on [[Hard drives]] === |
||
| + | # setup computer with an OS and boot drive. |
||
| + | # attach drive-to-test |
||
| + | # format drive |
||
| + | # write data, md5sum written data |
||
| + | # bring magnets to drive |
||
| + | # md5sum data again to check against bit corruption |
||
| + | # consider 'spamsum' to check for how MUCH of the data is corrupted. |
||
| + | |||
| + | * consider applying all this in a loop which runs constant, generating files (/proc/partitions), md5sum, wait for magnets, md5sum again, delete and repeat |
||
| + | * 10meg files? |
||
| + | * test for effects of magnetic field when writing files as well as reading |
||
| + | |||
| + | |||
| + | == foreign materials == |
||
* open breather hole, apply smoke |
* open breather hole, apply smoke |
||
* open breather hole, but apply coke alternate: drill hole) |
* open breather hole, but apply coke alternate: drill hole) |
||
| + | |||
| + | == Open drive == |
||
* open drive entirely simply to watch movement :) |
* open drive entirely simply to watch movement :) |
||
** apply soot to drive platters |
** apply soot to drive platters |
||
Revision as of 10:26, 30 January 2009
testing on harddrives....
Contents |
Magnets
What I have never seen is testing of magnets on drives. Now, I have alot of nice strong rare-earth magnets, and I have some old drives which are all but ready to be decomissioned.
Testing external magnetic effects on Hard drives
- setup computer with an OS and boot drive.
- attach drive-to-test
- format drive
- write data, md5sum written data
- bring magnets to drive
- md5sum data again to check against bit corruption
- consider 'spamsum' to check for how MUCH of the data is corrupted.
- consider applying all this in a loop which runs constant, generating files (/proc/partitions), md5sum, wait for magnets, md5sum again, delete and repeat
- 10meg files?
- test for effects of magnetic field when writing files as well as reading
foreign materials
- open breather hole, apply smoke
- open breather hole, but apply coke alternate: drill hole)
Open drive
- open drive entirely simply to watch movement :)
- apply soot to drive platters
