meta data for this page
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
datarecovery [2016/08/17 08:17] niziak |
datarecovery [2023/01/28 18:51] (current) niziak |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ====== Data recovery ====== | ||
| + | |||
| + | <code bash> | ||
| + | hdparm -c0 /dev/sdi | ||
| + | hdparm -X1 /dev/sdi | ||
| + | hdparm -d0 /dev/sdi | ||
| + | echo 1 > /sys/block/sdi/device/queue_depth | ||
| + | </code> | ||
| + | |||
| + | ===== fast erase whole disc ===== | ||
| + | |||
| + | <code bash> | ||
| + | sudo hdparm --user-master u --security-set-pass ABC /dev/sdX | ||
| + | sudo hdparm --user-master u --security-erase ABC /dev/sdX | ||
| + | |||
| + | # check if device security is "not enabled" | ||
| + | hdparm -I /dev/sdX | ||
| + | </code> | ||
| + | |||
| + | |||
| ====== sata hotplug ====== | ====== sata hotplug ====== | ||
| ===== Plug ===== | ===== Plug ===== | ||
| Line 14: | Line 34: | ||
| <code bash>echo 1 > /sys/block/(whatever)/device/delete</code> | <code bash>echo 1 > /sys/block/(whatever)/device/delete</code> | ||
| - | |||
| - | |||
| - | ====== safecopy ====== | ||
| - | There are some predefined settings: | ||
| - | * stage1: Preset to rescue most of the data fast, using no retries and avoiding bad areas. | ||
| - | * stage2: Preset to rescue more data, using no retries but searching for exact ends of bad areas. | ||
| - | * stage3: Preset to rescue everything that can be rescued using maximum retries, head realignment tricks and low level access. | ||
| - | |||
| - | In current working directory, safecopy will create files with badblocks map: stage#.badblocks, which are used in next stages. | ||
| - | Typical usage is: | ||
| - | <code bash> | ||
| - | safecopy --stage1 /dev/source output.img | ||
| - | safecopy --stage2 /dev/source output.img | ||
| - | safecopy --stage3 /dev/source output.img | ||
| - | </code> | ||
| - | |||
| - | ===== on USB or erronous drives ===== | ||
| - | To disable SATA low level operations: | ||
| - | <code bash> | ||
| - | safecopy --forceopen -L 0 --stage1 /dev/source /dev/destination | ||
| - | </code> | ||
| - | |||
| - | ===== Continue interrupted copy ===== | ||
| - | With -I parameter safecopy works in incremental mode. Position is detemined from //dest// file size. | ||
| - | If //dest// is a block device parameter -c needs to be used: | ||
| - | <code bash>safecopy --stage1 -c 175316045 -I stage1.badblocks /dev/sdi /dev/sdd</code> | ||