Questions tagged [data-recovery]

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

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InnoDB recovery from ibdata1 from disk failure

I started recovering data for a non-profit organization from a server that had a hard drive failure. The mysqldump was not working, but I managed to tar the /var/lib/mysql on time and download via ...
Krzysztofa Krzysztof's user avatar
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3 answers
176 views

Restore Mailboxes from Exchange 2007

So i have this customer who recently upgraded their Exchange server from 2007 to 2010. Another pair of techs performed the migration and they left behind the old original database. Well the General ...
xR34P3Rx's user avatar
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Marvell 9230 - RAID 10 3 disks suddenly appear as unconfigured

I was rebooting my NAS running Open Media Vault, and noticed that the RAID controller (Marvell 9230) reported degraded RAID operation since one disk wasn't found. I shut down the box to investigate. ...
Dennis Mortensgaard's user avatar
1 vote
2 answers
4k views

Office 365 Mailbox of unlicensed user

I'm trying to find any softdeleted mailbox that may be in the recycle bin, due to the licence removal (office or Exchange). Initialy I used Get-Mailbox -SoftDeletedMailbox but the results where null ...
Ezeq's user avatar
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Mounting LDM data partition

Essentially, the first two LDM partitions on my drive got formatted accidentally (mkfs is pretty... destructive). Windows now detects the drive as "invalid". fdisk -l output: Disk /dev/sdb: 931.5 ...
Matthew Finerty's user avatar
2 votes
1 answer
531 views

Hard Drive TVS Diode Repair Questions [closed]

I have a Seagate drive that died that I would like to recover data off of. I diagnosed the drive as having a failed TVS diode so I removed the diode and the drive began to function again. My concern ...
Justin Grimes's user avatar
1 vote
1 answer
2k views

Linux: recover data from xfs

I have a broken XFS filesystem on one of my HDD. I ran xfs_repair which was not able to find a secondary superblock to repair the filesystem. Therefore, I am not able to mount the HDD/partition. I ...
Michael Walter's user avatar
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1 answer
900 views

CHKDSK erases VHDX That threw Corrupted/Unreadable Error

A windows 7 Virtual machine instance running on a windows 12 server had a 'blue screen of death' with a REGISTRY_ERROR (Code 51). After several unsuccessful reboots (successfully to safe-mode but ...
nmattise's user avatar
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How can I analyze an encrypted HDD?

I have a HDD which I encrypted few years ago but I can't remember the tool I used. How can I find out if I have used TrueCrypt or VeraCrypt to encrypt my hard drive? Thanks.
user3646958's user avatar
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Office 365 Data Retention?

Hoping someone could help clear this up -- basically we are looking to configure data retention policies in Office 365. Reading through some of the articles on how data retention policies work with ...
n00bAdmin's user avatar
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How to restore the MySQL databases from a corrupted SSD?

My SSD got corrupted. I made a clone of it on an HDD and I have access to all original files from /var/lib/mysql/that_database. I want to import that_database back, but I can't. What I've tried ...
Ionică Bizău's user avatar
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1 answer
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How to sync azure SDD disk across datacenters?

I'm working on a failover plan for my (at the moment, single Azure region) webservers. My azure resources are due to legacy applications quite oldschool, Windows server 2016 VM's with SSD disks ...
user2713516's user avatar
1 vote
1 answer
869 views

Mapped VMDK no longer accessible - VMware ESX - recover data

At my company we have a virtual Windows 2012 R2 server running on VMware ESX. The server has 3 disks attached on different LUNs. (Disk 1 & 2 are on a smaller LUN containing multiple servers that ...
Divin3's user avatar
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2 votes
1 answer
921 views

How to recover data on replaced RAID 1 virtual drive, PERC 710 controller

Today I created a new RAID 0 virtual drive using the RAID setup wizard of my lifecycle controller for my two new 4TB SAS dell hardrives. Unfortunately, I misread the warning saying that creating this ...
PeterW_R's user avatar
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1 answer
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Seagate Blackarmor NAS Shared folder recovery

We have a Seagate Blackarmor NAS on which we have some shared folders. Yesterday, suddenly the shared folders were not being shown while trying to access as Windows share. We have CIFS and FTP enabled ...
Soutrik's user avatar
2 votes
2 answers
273 views

full /etc/ recovery from git

I have a CentOS 6.9 server. The full /etc directory was under version control. I accidentally ran 'git rm -R' on it. The server stopped working right away, my ssh session got lost. I managed to ...
stvn's user avatar
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Debian Jessie RAID6 recovery mdadm

I have a Debian Jessie box that lost the RAID volume that had the OS, so I booted Live USB to try to recover the attached SAS controlled external drive bay which has my data RAID6 and it sees 3 of the ...
batflaps's user avatar
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Synology: How to restore data from an accidentally deleted volumeX (BTRFS)?

The Synology in question has a RAID6 configured via mdadm which features a BTRFS filesystem mounted to /volume1. This path was mounted into a Debian chroot. The unmount was configured in the chroot ...
TylerDurden's user avatar
1 vote
1 answer
808 views

Recover partition table or MBR in EXT4 backup HD

I have a external USB HD for backup formated with EXT4. When I turned it on, it made some weird noise and I was unable to connect to it with ubuntu. Nautilus said unable to mount and many other errors....
oliver.prado's user avatar
6 votes
2 answers
2k views

Fix RAID 5 with two drives containing bad blocks [closed]

Assume the following situation: An administrator was not careful enough maintaining a NAS server (QNAP QTS 4.3.3) using RAID5 and it has already reached a situation in which two (out of four) drives ...
Dan's user avatar
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4 votes
2 answers
3k views

Recover RAID 1 data without controller

Nearly 10 years ago I built a PC for a friend and thought it would be a good idea to use the motherboard's RAID controller to set up a RAID 1 array. Since HDDs have a propensity to die quicker than a ...
Craig's user avatar
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1 answer
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How to decrese MySQL Innodb crash recovery time (force MySQL to do it faster)

I'm running MySQL 5.7 with 1GB of innodb_log_file_size on CentOS 7 x64 and I can't change the value of that parameter right now. In the case of crashes, it takes about 20 minutes to recover, but ...
Ehsan Khodarahmi's user avatar
0 votes
1 answer
1k views

Restore partially overwritten partition?

I had healthy NTFS partition. Due to mistake, it was formatted to EXT4 and partially overwritten. Naturally, many files are lost. But photorec is able to retrieve separate files, unfortunately without ...
Svyatoslav's user avatar
2 votes
3 answers
529 views

Which is the worst-case scenario: dying HDD or SSD?

We all know SSD offer many advantages (such as speed) over HDD drives but which one is safer when it comes to data rescue if, for instance, the drive is failing? From my understandings on SSD drive ...
Luka's user avatar
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-1 votes
1 answer
489 views

Recover overwritten files [closed]

I found some info to help me recover an overwritten file. It was overwritten by using rsync in the wrong direction after making a bunch of changes. Following the info I found, I type this to see a lot ...
rwfitzy's user avatar
  • 233
1 vote
3 answers
616 views

HP P410 RAID 0 - Added 2nd Drive Then Deleted 2nd Drive before 1% - Array Broken - Recovery options?

I made a mistake and I wanted to ask some others for best recovery options. Boot drive in home server was a single drive RAID 0 connected to a HP Smart Array P410 controller. I was attempting to ...
Ajk Tek's user avatar
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1 answer
97 views

Decode & restore files from /dev/md3 (Hacked server) [duplicate]

My not exposed MongoDB has hacked to ransom, my files stored on /home/mongo/store has deleted, i use foremost, ext4magic , extundelete , nothing is happening , backups on the same server are deleted ...
Guillaume Sarfati's user avatar
3 votes
0 answers
3k views

FreeNAS - Imported old ZFS volume - but multiple datasets missing?

I have a FreeNAS server setup at my parents place. It was previously running FreeNAS Coral. This had a single ZFS volume called 'datastore'. It's a RAIDZ-1 volume, comprised of 4 x Toshiba 5TB disks. ...
victorhooi's user avatar
10 votes
1 answer
2k views

Getting files out of XFS with 64kb block size

I've been on a mission to recover files from one of my 2 perfectly working, non-corrupted, non-encrypted NAS drives that used to be in RAID 1. The NAS was Patriot Javelin S4, which (as I found from my ...
Max Chernyak's user avatar
0 votes
1 answer
787 views

Recover partition that was removed and overwritten with another partition on an SSD disk

I have a SSD that was used as a boot drive that was originally split the following way: major minor #blocks name 8 0 250059096 sda 8 1 61812736 sda1 8 2 1 ...
adamst85's user avatar
1 vote
1 answer
20k views

MySQL fails to start [InnoDB Repair]

After inspecting the log files I see that some of the databases have errors. 2017-05-16 08:52:48 7fc0cb8abb00 InnoDB: Assertion failure in thread 140466025315072 in file ha_innodb.cc line 21990 ...
Shahriar Shojib's user avatar
3 votes
2 answers
3k views

Open files inside Windows Recycle Bin

I've done lots of research on trying to recover files from another user's recycle bin (Windows 10). They can just log in themselves, but I wanted to work on their ticket while they're out of office. ...
Jackson Taylor's user avatar
0 votes
1 answer
64 views

User data recovery, Bitlocker not letting OS boot.

A user on our network recently could not boot into their Windows 7 Enterprise laptop. We have the BitLocker Key, and even after entering it The installation will not get past the Windows logo. It ...
Malvek's user avatar
  • 13
-1 votes
1 answer
271 views

Unexpected shutdown and data loss

We have several rack servers, all with SATA3 Transcend SSD's. Most SSD's are 250GB and they usually have 50% free space most of the time. When there are unexpected shutdowns, not all the data is ...
u1236645's user avatar
0 votes
3 answers
2k views

Recover deleted VMware virtual disks, i.e. *.vmdk files

We had a virtual-disk and its snapshots at the following path on a server. /vmfs/volumes/ESX3/IBSng_Server/ The *.vmdk files were: IBSng_server.vmdk IBSng_server-flat.vmdk IBSng_server-000001.vmdk ...
Megidd's user avatar
  • 251
1 vote
4 answers
1k views

ZFS: Does anyone know how to roll a zvol back in time?

I have a ZFS based iSCSI SAN that serves ZVOLs to a bunch of VM servers. Today a network glitch caused all the iSCSI volumes mounted on the clients to go RO. The only way out of that is to shut them ...
tlum's user avatar
  • 257
18 votes
0 answers
11k views

Restoring data after zfs destroy

On Debian 8.7 I had a zfs pool. (obviously using ZFS on Linux, not Oracle or Solaris zfs) It was needed to extend ZFS pool from mirror on 2 disks to raidz on 4 disks. I did backup (one copy of data - ...
Oleg Rudenko's user avatar
3 votes
1 answer
1k views

Data scrubbing and repairing a RAID1 mirror?

In Linux, if I have a software RAID1 mirror /dev/md1 with N ≥ 1 active devices, what are the semantics of the repair command? echo "repair" >/sys/block/md1/md/sync_action Am I correct to ...
jotik's user avatar
  • 159
1 vote
2 answers
2k views

Any good open-source file recovery software for Windows? [closed]

Is there any good (i.e., robust, effective, thorough, etc.) open-source file recovery software for Windows X out there? All I get after a google search is a bunch of paid software, of which probably ...
Gerardo Figueroa's user avatar
0 votes
1 answer
221 views

Can I rescue any data if one of two drives in Striped Linux LVM failed?

I have a Scientific Linus 6.7 box that serves some applications on our network. The person who set it up is no longer around. This morning machine stopped booting. There are two HDD's and they both ...
dfo's user avatar
  • 119
0 votes
3 answers
335 views

RAID5 Data Recovery on PowerEdge

First off, sorry for my poor english. Okay? So, folks, my DELL PowerEdge R420 is stopped. It's RAID-5 designed with SAS x4. But, two drives are in trouble: One is under S.M.A.R.T. error. The other ...
Hakuno's user avatar
  • 38
0 votes
2 answers
682 views

All SharePoint dbs are recovery pending

After a power outage, where everything went down, all SharePoint databases have Recovery Pending status. It was a relatively fresh install and no backups have been made yet (don't shoot me, I'll do it ...
grisha's user avatar
  • 103
0 votes
0 answers
523 views

Recover MDADM compatible RAID5 array

I have four drives from a Buffalo Terastation NAS. My understanding is that the Terastation either uses mdadm for RAID or is at the very least compatible with it. I've take my drives and cloned each ...
Brad's user avatar
  • 619
-1 votes
1 answer
857 views

HP Microserver Gen8 RAID0 rebuild loss data

I have 2 WD HDD on gen8 and built as RAID0 on slot1 and slot2, and I have unplugged this two disk and install seagate disk on slot 1 and slot 2. and SmartArray report there are no raid found. then I ...
user219031's user avatar
1 vote
0 answers
391 views

Recovering MySQL data from files on Windows

I had a server fail (disk failure, old server; no raid) at the weekend and am unable to recover the MySQL databases from the backup. After exhausting all the usual recovery options, I've performed a ...
John's user avatar
  • 541
0 votes
2 answers
813 views

Tracking the amount of change data on a server volume

Scenario: I am a new admin for my company and have a single volume of 30TB (28 used) that currently has no backup configured (must be why I have this job). I am looking to at DR/offsite backup ...
Mike66350216's user avatar
0 votes
1 answer
1k views

HP Proliant DL380 G6 - Recover after 2nd disk failure during RAID 1 rebuild

** Disclaimer, I just recently became an administrator to this system and realized that the backups are unusable. As well, the state of administration software is terrible ** The system (Ubuntu 14.04)...
Dave Evans's user avatar
2 votes
2 answers
4k views

Recover the file system from a corrupted RAID1

TL;DR How to recover the ext4 file system from a corrupted RAID1 partition? My situation I have one failed disk that belonged to an RAID1 array on a Synology DiskStation, the other one is lost. ...
Jakub's user avatar
  • 123
0 votes
2 answers
928 views

reinstall owncloud freenas without losing data

We recently had a major poweroutage that caused our freenas server to bootdown (Battery Backups ran out of juice). When rebooting the server owncloud failed to restart and was throwing a php error. ...
DEVPROCB's user avatar
  • 101
1 vote
0 answers
2k views

Error 0x80070519 reading file: revision level is unknown

I have mounted a dedup volume in Windows Server 2012 R2. When I try to copy a file from the volume to another I get the error 0x80070519 revision level is unknown The volume seems to be healthy ...
Ronnie Overby's user avatar

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