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109
votes
4answers
6k views

All servers flooded by salt water, is it possible to recover data from multi-platter drives?

All of my servers are currently flooded by salt water. Is it possible for each platter in a multi-platter drive to be separated, cleaned, imaged, and merged into a new virtual drive for data ...
41
votes
6answers
18k views

How can I successfully mount an 8-bit SCSI drive on a modern computer?

I have a number of internal 8-bit SCSI-1 drives that I'd like to archive for historical purposes. These are all the old NeXT Cubes and NeXTStations (monochrome and color) that were used by id ...
31
votes
4answers
11k views

Recover RAID 5 data after created new array instead of re-using

Folks please help - I am a newb with a major headache at hand (perfect storm situation). I have a 3 1tb hdd on my ubuntu 11.04 configured as software raid 5. The data had been copied weekly onto ...
25
votes
4answers
1k views

My server room has flooded

We recently went through a hurricane and our server room became flooded. Hooray for insurance. Anyway, I need to save as much data off one of the hard drives as possible. Yes, it was submerged for ...
22
votes
4answers
3k views

ZFS on FreeBSD: recovery from data corruption

I have several TBs of very valuable personal data in a zpool which I can not access due to data corruption. The pool was originally set up back in 2009 or so on a FreeBSD 7.2 system running inside a ...
9
votes
1answer
1k views

How can I recover an ext4 filesystem corrupted after a fsck?

I have an ext4 filesystem on luks over software raid5. The filesystem was operating "just fine" for several years when I was beginning to run out of space. I had a 9T volume on 6x2T drives. I began ...
8
votes
1answer
396 views

Recover data from SCSI hard disk

We've got an old server with SCSI hard disk. The server crashed last week and it isn't exactly known what hardware component is damaged. Since the server is due to be retired anyway we don't want to ...
6
votes
3answers
356 views

Need help recovering a corrupt SQL database

I have a very special case that I have been working on for several days. I have a very large SQL Server 2008 database (about 2 TB) that contains 500 filegroups to support very large partitioned ...
6
votes
4answers
205 views

Join large overlapping files

I am trying to recover a (MySQL) database from a crashed disk. There are a number of recent dumps, which are corrupted bz2 files. Since the database does not change often, the dumps should be nearly ...
5
votes
10answers
2k views

How to recover outlook emails

It has happened many times in my organization that some people have left in not really good terms. So when you go to check their computers you find that they normally delete their emails, sometimes ...
5
votes
1answer
992 views

I accidently dropped the mysql db

Today, i was absent minded and instead of droping the databases i wanted I wrote drop database mysql; What do i do now!?! i didnt do anything else since and i havent closed my session. Luckily ...
5
votes
1answer
449 views

Corrupt files' contents, while FS is OK

Looks like my USB HDD is old and corrupted: rsync: read errors mapping "path/to/file.jpg": Input/output error (5) Syslog: kernel: [58927.940676] sd 6:0:0:0: [sdb] Unhandled sense code kernel: ...
5
votes
2answers
4k views

Ext4 superblock corrupted after successful(?) mdadm grow and resize2fs

Some system details AMD Phenom II X6 1090T, 16GB DDR3 1600 running 11.04 natty, 2.6.38-8-server Raid in question consists of 5 SATA drives; 4 Samsung, 1 Western Digital; 500 GB each Drives are ...
5
votes
1answer
713 views

Is there way to read sectors from SATA drive without ECC correction?

I know, there was such possibility like that in old ATA standards: "READ LONG" command produced LBA sector + ECC payload. sg_read_long supports in in linux, but the command is obsolete for quite a ...
5
votes
1answer
2k views

Recover deleted rows from SQL Server transaction log file

I need to recover deleted data from an SQL Server 2000 transaction log file. The Log file is 3.3GB. I tried the usual SQL Log Rescue but it keeps crashing with outOfMemory exception. I also tried it ...
5
votes
1answer
103 views

RAID Recovery after Firmware issue

This may be a duplicate but I think the situation is different. We were having problems with a HP MSA2000 SAN, speaking to support they suggested that we upgraded the firmware to the latest version ...
5
votes
1answer
79 views

What are my prospects of recovering old version of file on BTRFS

I've accidentally overwritten an important file on BTRFS. Knowing that this filesystem is COW, it should be in theory be possible to recover an old version of the file. Unfortunately googling didn't ...
5
votes
2answers
1k views

e2fsck extremely slow, although enough memory exists

I've got this external USB-Disk: kaefert@blechmobil:~$ lsusb -s 2:3 Bus 002 Device 003: ID 0bc2:3320 Seagate RSS LLC As can be seen in this dmesg output, there is some problem that prevents that ...
4
votes
5answers
7k views

How to access LVM partitions on OS X?

I need to access ext3 partitions over an LVM logical volume in a SATA HD connected through USB2 to my iMac with OS X 10.6 . Is it possible to see LVM volumes from OS X? How? Disk Utility says that ...
4
votes
2answers
174 views

How to salvage a RAID configuration?

A buddy of mine and I are in the process of trying to salvage an old server that hasn't been used for a while, but whose data is critically important. It's an old box with a series of hard drives ...
4
votes
3answers
722 views

Recovering emails from a dead exchange database

We recently had an outage on our DC - one disk out of a 4 disk raid array failed and it ran in degraded mode for about 3 weeks before we were able to replace the disk. By the last day before it got ...
4
votes
2answers
1k views

Recover NTFS data from a ZFS pool that was exposed as an iSCSI target

This was me being stupid and the data is by no means critical and is now a learning experience first, time saver second. I set up a 100GB iSCSI target via the bare bone instructions in napp-it. It's ...
4
votes
1answer
109 views

VERY peculiar permission masks, UIDs, GIDs and file names in Linux

I've just booted to find my software RAID 5 in Ubuntu not mounting. When trying to mount it gave me an NFS error (which was confusing). I ran fsck on /dev/md0 and my screen scrolled with fixes for ...
4
votes
2answers
1k views

Bad sectors, S.M.A.R.T., SpinRite, firmware on platter and drive id questions

Is it possible for S.M.A.R.T. to give false readings (say I was fiddling with lots of recovery programs, transfers, so on and so forth) or is it absolutely a read-only direct correlation to the ...
4
votes
2answers
2k views

Any way to recover ext4 filesystems from a deleted LVM logical volume?

The other day I had a proper brain fart moment while expanding a disk on a Linux guest under Vmware. I stretched the Vmware disk file to the desired size and then I did what I usually do on Linux ...
4
votes
1answer
2k views

MySQL data recovery (innoDB) - missing .frm files but intact ibdata

A recent server fiasco left me with a by-all-appearances intact ibdata file but only half of my .frm-containing directories. I've copied all of this to a fresh mysql install, and have successfully ...
3
votes
4answers
247 views

Mistakenly ran an update statement on table

We have mistakenly ran an update statement on one of our Columns in a SQL table. We don't have a backup of the table nor the database. Can any one help us to retrieve the values of the Column before ...
3
votes
5answers
954 views

Recovering from Two Failed Drives in a Six-Drive Raid-5 Array

Over the weekend two drives failed on one of our development machines and I lost a lot of work. The machine has six 300gb drives in a raid 5 array. Our system administrator tells me that if only one ...
3
votes
3answers
3k views

How long should I expect CheckDB with REPAIR_ALLOW_DATA_LOSS to run

I am running CheckDB with REPAIR_ALLOW_DATA_LOSS on a Shairpoint search DB that is 47mb It has been running for > 30min. Is that normal? How long should it take?
3
votes
8answers
912 views

Getting data out of a non-working SATA drive

Can anything be done to get data out of a dead SATA drive, the drive won't even show up on the list of drives when booting the computer? UPDATE: The drive was never backed-up. It was an external ...
3
votes
5answers
1k views

How to recover deleted files on ext3 fs

I have a drive which was using the ext3 filesystem. I am told that about 10Gb of data was deleted off the drive (probably via rm). The drive is currently mounted as read-only to preserve all data. ...
3
votes
8answers
2k views

Recover a lost NTFS partition on the cheap?

I had a workstation running XP. Filesystem was NTFS, single partition over the entire drive. After an attempted XP repair install, suddenly the NTFS filesystem is just gone and the drive is showing ...
3
votes
5answers
4k views

How can I back up and replicate a large MySQL database?

How can I backup a large database in mysql? And what is the best way to replicate the database? what i'm looking for is backing up large database with large amount of data in a small time limit ...
3
votes
1answer
437 views

Does tarring up small files into one big tar file before writing them to tape increase the level of data loss when an error occurs?

I've been looking at our backups recently and noticed that the tape throughput is a lot lower when writing lots of small files, so was thinking of tarring those small files up into one big tar file ...
3
votes
3answers
2k views

Foremost custom file type not accepted by -t argument

I'm trying to recover a deleted file on an ext3 file system using the foremost utility. The file I want to recover is a hpp C++ source code file. However, foremost does not automatically support the ...
3
votes
2answers
199 views

Recover a deleted partition by mistake (FAT32)

I deleted by mistake a FAT32 (I think it was fat32) partition in a external drive, searching I got through this post: ...
3
votes
1answer
2k views

Recovering data from SAS drives after failed SAS Controller Card?

The SAS Controller Card in a production server of ours went bad. This was an older server, and Dell does not have the card in stock and not ETA for one. So, I ordered one from NewEgg. I installed the ...
3
votes
2answers
1k views

MDADM RAID 5 data recovery

Thanks for reading this thread and I thank you in advance for any help you can provide. So this is what happened... I noticed that my MDADM RAID 5 array with drives ordered: /dev/sd[EFGHIABCDKJ]1 ...
3
votes
1answer
190 views

Accidentally overwrote first 400MB of hard drive with ext3 partition - possible to rescue?

Accidentally wrote /dev/zero to the first 371MB of a 500GB disk. Is it possible to rebuild the partition table and/or recover what data hasn't been overwritten?
3
votes
0answers
81 views

licence file for extra logins on ancient Unix (CLIX) system

I'm helping to sort out an ancient Intergraph 6800 machine at work, running CLIX, a proprietary Unix. Binning the system is not an option. It is a certified safety-critical system that would cost ...
2
votes
8answers
992 views

Accidentally rm -rf /usr/* as root, what now?

A colleague of mine accidentally deleted /usr/* data by running: rm -rf /usr/*. And it's now a big issue. We had a lot of good data on that machine. Most of the commands are not working as a result. ...
2
votes
2answers
250 views

Hosting server's harddisk crashed [closed]

My hosting provider has told me that the server harddisk that I am currently using is crashed and they failed to recover most of the data and they only managed to recover some files or folder from the ...
2
votes
2answers
185 views

Rescue as much data as possible from damaged tape

We have some data on very old DDS (1,2 and 3) DAT tapes. I tried reading them with: dd if=/dev/st0 of=file bs=32k but get many partial blocks and sometimes IO errors. Have also tried with: dd ...
2
votes
4answers
286 views

Does using vmdks improve / mitigate the risk of forensic data recovery?

If I want to mitigate the risk of data recovery from a disk drive resold as surplus equipment, how would the use of virtual disks assist? For example, if I have half a dozen vmdks on a 1TB drive (for ...
2
votes
2answers
56 views

Recover emails from unused legacy exchange server

I've been presented with an old MS Exchange 2003 server which contains a lot of important emails. How would I best recover these emails? My dream scenario would look something like this: Install ...
2
votes
3answers
862 views

How to make a byte for byte copy of a drive? [duplicate]

Possible Duplicate: Using DD for disk cloning What's the easiest and most reliable, risk free, way of making an exact copy of a hard drive? We have a drive that's been messed up by someone ...
2
votes
4answers
3k views

Break up a dd image into multiple files

I'm doing some data recovery from a hard disk. The disk has about 300GB of data on it, but I lack another hard drive that has 300GB of free space. I have three HDs, with 150, 40, and 120 GB free. ...
2
votes
2answers
5k views

SpinRite and USB blues - does a solution exist?

I use SpinRite to recover hard disks and their content, and to a lesser degree for preventive maintenance. However, if a USB drive (USB thumb drive and/or external hard disk with a USB interface) is ...
2
votes
4answers
175 views

How secure is cloud computing?

By secure, I don't mean the machines itself and access to it from the network. I mean, and I suppose this could be applied to any kind of hosting service, when you put all your intellectual property ...
2
votes
2answers
3k views

Recovering from a Time Machine backup encrypted with PGP Whole Disk Encryption

Our entire organization requires PGP Whole Disk Encryption (WDE) to be used on all laptop and desktop computers. For Macs running Mac OS X 10.5 or later that are using Time Machine, the (local) Time ...