Name: Anonymous 2006-04-30 7:53
Today I read this article http//www.lifehacker.com/...
has they use to have good tips, and I had a trashed 60Gb drive, I decided to try. I put harddrive on the freezer and forgot it there, so it was there about 12 hours (they recomend 1 hour). When I put it back it was so cold it hurt my fingers, and quickly started to consensate humidity, but what the hell, it was trashed anyway. So I connected it.
Well it wasn't really completely trashed, I was able to recover data before, and it worked sometimes. But now I have it connected about 6 hours long and I only had problems with a surface scan in windows, so there still some areas afected. The condensated humidity has allready gone and it's working.
But remember this trick doesn't fix the drive, it's only to recover data.
So, I was thining: what the hell should I do now to a working untrusteable drive? Well I decided to try Software RAID0 using linux kernel and mdadm.
So I started following this http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html but heck! I had the driver (md) compiled and all the shit but didn't have /dev/md0, I after a long time I decided to create the device on my own. MAKEDEV didn't work, so I used the ol' mknod.
# mknod /dev/md0 b 9 0
# chown root.disk /dev/md0
# chown 644 md0
And then followed the HOW-TO and here are the results:
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 164 MB in 3.01 seconds = 54.43 MB/sec
# hdparm -t /dev/hdc
/dev/hdc:
Timing buffered disk reads: 120 MB in 3.03 seconds = 39.63 MB/sec
# hdparm -t /dev/md0
/dev/md0:
Timing buffered disk reads: 214 MB in 3.00 seconds = 71.32 MB/sec
Not bad for a thrashed hard drive :) md0 is a RAID0 (strip) of hdc1 anda hda4, my kernel is 2.6.16 and Debian.
has they use to have good tips, and I had a trashed 60Gb drive, I decided to try. I put harddrive on the freezer and forgot it there, so it was there about 12 hours (they recomend 1 hour). When I put it back it was so cold it hurt my fingers, and quickly started to consensate humidity, but what the hell, it was trashed anyway. So I connected it.
Well it wasn't really completely trashed, I was able to recover data before, and it worked sometimes. But now I have it connected about 6 hours long and I only had problems with a surface scan in windows, so there still some areas afected. The condensated humidity has allready gone and it's working.
But remember this trick doesn't fix the drive, it's only to recover data.
So, I was thining: what the hell should I do now to a working untrusteable drive? Well I decided to try Software RAID0 using linux kernel and mdadm.
So I started following this http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html but heck! I had the driver (md) compiled and all the shit but didn't have /dev/md0, I after a long time I decided to create the device on my own. MAKEDEV didn't work, so I used the ol' mknod.
# mknod /dev/md0 b 9 0
# chown root.disk /dev/md0
# chown 644 md0
And then followed the HOW-TO and here are the results:
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 164 MB in 3.01 seconds = 54.43 MB/sec
# hdparm -t /dev/hdc
/dev/hdc:
Timing buffered disk reads: 120 MB in 3.03 seconds = 39.63 MB/sec
# hdparm -t /dev/md0
/dev/md0:
Timing buffered disk reads: 214 MB in 3.00 seconds = 71.32 MB/sec
Not bad for a thrashed hard drive :) md0 is a RAID0 (strip) of hdc1 anda hda4, my kernel is 2.6.16 and Debian.