I had this project off to the side but I want to get on track and finish it.
Well for a year I have had a Silicon Graphics 4D/20 sitting under my desk and all the time I have been waiting to back the drive up before it goes south.
Well a few months back I finally had a second SGI arrive and I first set out to see if I could mount the thing.
I couldn't mount but running FX on the drive to view it's drive data gave me this:
After a looked at it I then Inserted a DAT tape into it's drive and proceeded to back the drive up.
Guess what happened just before I started the backup......The drive committed suicide
It didn't crash but several blocks on the drive went bad. By chance they did this right at that moment.
This caused the backup to fail and according to FX the drive got hosed.
I then resorted to a more crude backup method and ran ddrescue on the drive.
The great thing about FX is that I can manually re-enter the lost header data and so long as I manage to add into the new drive geometry that bad 28672 B of data I should be able to get the drive back into a state where I can successfully mount it and properly back it up.
The thing is, how do I do it?
There's stuff on the drive I don't want to lose.
Well for a year I have had a Silicon Graphics 4D/20 sitting under my desk and all the time I have been waiting to back the drive up before it goes south.
Well a few months back I finally had a second SGI arrive and I first set out to see if I could mount the thing.
I couldn't mount but running FX on the drive to view it's drive data gave me this:
Code:
----- current drive parameters----- Error correction enabled Enable data transfer on error Don't report recovered errors Do delay for error recovery Do transfer bad blocks Error retry attempts 18 No auto bad block reallocation (read) No auto bad block reallocation (write) Drive readahead enabled Drive buffered writes disabled Drive disable prefetch 65535 Drive minimum prefetch 0 Drive maximum prefetch 53 Drive prefetch ceiling 53 Number of cache segments 1 Read buffer ratio 0/256 Write buffer ratio 128/256 Command Tag Queueing disabled ----- current drive geometry----- Tracks/zone = 15 Sect/track = 53 Alt sect/zone = 3 Interleave = 1 Cylinders = 1658 Alt track/volume = 15 Cylinder skew = 14 Heads = 15 Alt track/zone = 0 Track skew = 7 Data bytes/sec = 512 ----- partitions----- part type blocks Megabytes (base+size) 0: efs 3168 + 32472 2 + 16 1: raw 35640 + 81576 17 + 40 6: efs 117216 + 1195128 57 + 584 7: efs 3168 + 1309176 2 + 639 8: volhdr 0 + 3168 0 + 2 10: volume 0 + 1312344 0 + 641 ----- bootinfo----- root partition = 0 swap partition = 1 bootfile = /unix ----- directory entries----- 0: sgilabel block 795 size 512 2: ide block 2162 size 505344 1: sash block 797 size 208384 ----- sgi-info----- serial = 0000 name = FUJITSU M2263S-512 0168
Guess what happened just before I started the backup......The drive committed suicide
It didn't crash but several blocks on the drive went bad. By chance they did this right at that moment.
This caused the backup to fail and according to FX the drive got hosed.
Code:
***CURRENT DRIVE INFO*** ----- partitions----- part type blocks Megabytes (base+size) 8: volhdr 0 + 82022 0 + 40 10: volume 0 + 1312344 0 + 641 ----- bootinfo----- root partition = 0 swap partition = 0 bootfile = ----- directory entries----- ----- sgi-info----- serial = 0000 name = FUJITSU M2263S-512 0168
Code:
pentium@Ubuntu:~$ sudo ddrescue /dev/sda /home/pentium/4Dbu/bu1 Password: Press Ctrl-C to interrupt rescued: 671891 kB, errsize: 28672 B, current rate: 0 B/s ipos: 65024 B, errors: 56, average rate: 845 kB/s opos: 65024 B
The thing is, how do I do it?
There's stuff on the drive I don't want to lose.
<----Computer says I need more beer.