Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [data-recovery]

Reclamation of deleted or otherwise removed/corrupted data (files)

Reclamation of deleted or otherwise removed/corrupted data (files). The level of complexity of such a task varies from simply "Restoring" a file (from a Recycle Bin) to using advanced tools to analyze the filesystem and rebuild previously deleted/corrupted data.

445 questions
6
votes
2 answers

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 connected to a LSI SAS 9201-16i Host Bus Adapter…
lose_the_grimm
  • 75
  • 2
  • 5
6
votes
1 answer

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 this is just my local computer with no real data.…
user274
6
votes
4 answers

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 tables. Recently we had a catastophic failure on one of…
user66488
  • 71
  • 2
6
votes
3 answers

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 hpp file extension, so I have to add it to the…
Channel72
5
votes
5 answers

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 then restoring it within a small time of limit??
hkshambesh
  • 63
  • 3
  • 7
5
votes
1 answer

ZFS shows pool state FAULTED, but all devices are ONLINE; how can I recover my data?

Our 100TB NAS based on FreeNAS 8 was unexpectedly powered off due to power failure. After turning it on back, 100TB zpool "projects" was unmounted with state "FAULTED". I've tried zpool import -fFX, it was running for about 20 hours, but nothing…
Sergey Andrianov
  • 51
  • 1
  • 6
5
votes
1 answer

Recovering data from a failed SAS drive? (RAID0...yes, I know)

We have a HP DL360 server with a P400 controller, which has two 72GB 10K SAS drives in a RAID 0 configuration (yes, I know...RAID 0). The HP Model number for the drives is DG072A8B54 Recently, one of the two drives appear to have failed, and is no…
victorhooi
  • 515
  • 3
  • 11
  • 20
5
votes
3 answers

How to recover data from a messed up drive (LVM written on top of Ext4)?

The previous administrator of a server that is now under my supervision made a mistake. He accidentally created a LVM volume (no more than pvcreate, I think, though not sure) on a disk that actually contained an Ext4 partition with data. How do I…
Vilx-
  • 843
  • 4
  • 16
  • 25
5
votes
2 answers

ZPOOL replace defective disk in exported pool

Yesterday, I put a new disk into my server. Sadly, I didn't check the disk before of failures. I added it to my pool with the command zpool add nas /dev/disk/by-id/scsi-SATA_ST31500341AS_9VS27Z4M-part1 Short after, the CPU-load of the server went…
UeliDeSchwert
  • 152
  • 7
5
votes
0 answers

Windows Server wbadmin recover with commas

I want to do a recovery of files with commas in their names from the command line, ala: wbadmin start recovery -version:10/01/2013-12:00 -itemType:File -overwite:Overwrite -quiet "-Items:C:\Path\To\File, With Comma.txt,C:\Path\To\File 2, With…
dlp
  • 151
  • 3
5
votes
1 answer

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 and clear out one of the VDISKS which had a…
boburob
  • 1,174
  • 8
  • 23
5
votes
2 answers

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 disk from beeing mounted: kaefert@blechmobil:~$…
kaefert
  • 121
  • 1
  • 5
5
votes
2 answers

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 a volume LU. I then had my Windows 7 machine…
David
  • 113
  • 1
  • 6
5
votes
1 answer

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: [58927.940683] sd 6:0:0:0: [sdb] Result:…
kolypto
  • 11,058
  • 12
  • 54
  • 66
5
votes
3 answers

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 guests without LVM: I deleted the LVM partition and…
Vegar Nilsen
  • 163
  • 2
  • 5
1 2
3
…
29 30