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

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20
votes
8answers
33k views

RAID-5: Two disks failed simultaneously?

We have a Dell PowerEdge T410 server running CentOS, with a RAID-5 array containing 5 Seagate Barracuda 3 TB SATA disks. Yesterday the system crashed (I don't know how exactly and I don't have any ...
0
votes
3answers
7k views

Recovering files from IIS system (inetsrv) directory?

Some file from my inetsrv directory (c:\windows\system32\inetsrv) were accidentally removed. Is there a way to get them back? Reinstalling IIS server role doesn't help, because Windows doesn't remove ...
3
votes
0answers
31 views

How can RAID deal with inconsistent data?

RAID 1 and RAID 5 (and their brothers 10 and 50) achieve data redundancy respectively through mirroring and through parity checking. This allows a RAID array to still access data when a sector on a ...
-1
votes
0answers
25 views

Blank LVM partition after recovery. Where is the data?

colleagues! A few days ago, the logical volume has been removed from one machine. Today, it turned out that there were still important data. No problems, everyone knows vgcfgrestore. Found in the ...
6
votes
1answer
78 views

Proper way to deal with corrupt XFS filesystems

I recently had an XFS filesystem become corrupt due to a powerfail. (CentOS 7 system). The system wouldn't boot properly. I booted from a rescue cd and tried xfs_repair, it told me to mount the ...
-3
votes
2answers
43 views

How unlikely it is that 2 SSD disks in a RAID 1 crash and how to recover from it? [closed]

How unlikely is it that a mirrored raid of 2 ssd drives fail together. (Both sector 0) unreadable. Me is told that ssd generally never breaks. So that both break at same time seems unique. What ...
0
votes
0answers
13 views

Rewrite partition table for 1 HFS+ partition

2 hard drives in an enclosure got their partition tables corrupted, I'm guessing due to some error with the RAID controller (set on JBOD, never changed it or triggered any RAID initialization). Both ...
3
votes
1answer
40 views

Can I extract a private key out of Tomcat's memory?

I'm running Tomcat 6. I was messing around with my keystore in order to try to fix some certificate chain problems, and I accidentally rm'd the production version instead of the .new file I was ...
-3
votes
3answers
80 views

Can you recover files from an overwritten RAID 1? [closed]

Edit: The array is actually RAID1, slight communication hiccup with the rest of my team. Following the decommissioning of one of our server, a manager just realised there was, after all, data that ...
3
votes
1answer
83 views

Taking an image of a failing boot drive

Ok, so my Ubuntu 12.10 install seems to have gone slightly sideways. It currently boots from a Compactflash card that I was planning on replacing soon, but as luck would have it it's gone down now. ...
3
votes
1answer
2k views

Recover mdadm RAID 10 array: listing all as spares

I'm a bad person and haven't backed up my RAID elsewhere. I now have a RAID10 array that won't assemble, and I'm hopeful I can save it. Here's the details: I have five hard drives set up as RAID10 ...
0
votes
1answer
61 views

Extract docker volumes from running container

My /var/lib/docker/volumes directory got accidentally lost. Some containers are running right now and the services aren't missing any files. For example, I'm running a maven repo (Sonatype Nexus) and ...
0
votes
0answers
16 views

Recovery of tartarus backup -> Most software ends with “Segmentation fault”

after the recovery of a backup which I made with "tartarus" (http://wertarbyte.de/tartarus.shtml) I get on few software things a segmentation fault. For example, the dmesg shows that SSH etc. starts ...
0
votes
1answer
67 views

Ubuntu OS recovery – accidentally deleted ld-linux-x86-64.so.2 from /lib64 folder in Ubuntu 14.04

I was remotely working on the machine with SSH but after deleting the ld-linux-x86-64.so.2 file by mistake I closed the ssh session and now I cannot login because it gives me following error: Welcome ...
1
vote
1answer
35 views

Recovering KVM VMs when booting from mirrored host OS

Im running KVM on a Ubunutu 14.05 server. The server has 2 1.2TB drives which will each have 1 VM (elastic search nodes). I did a dd to clone the main OS and can boot from either disk without issue. ...
1
vote
1answer
36 views

Recover deleted exchange mailbox after re-creation

So here's what happened. I had a user account that was giving me (unrelated) trouble, so I deleted the user account from the SBS console. I didn't think about it at the time, but the box was checked ...
-1
votes
1answer
56 views

Restore RAID 5 HP P410

I have: P410 + 512MB Battery Backup 4x4TB in RAID 5 I changed the PSU today and after starting OS (Windows 2008 R2) the array is gone. ACU sees 2 HDD as unassigned and original RAID 5 as 2 OK ...
2
votes
5answers
4k 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. ...
0
votes
0answers
75 views

Physical storage devices, such as tape and changer devices, not visible when booting Debian 8 Jessie, with hpsa driver.

Question Not detecting all physical devices behind Smart Array controller after upgrading to Debian 8 Jessie HP P212 Smart Array Controller and HP 1/8 G2 LTO-5 3000 SAS Autoloader Debian 7 Whezzy ...
1
vote
1answer
72 views

HP SmartArray Rebuild Logical Drive without data loss

First, let me explain our situation: We had an HP server with a RAID 1 over 2 drives (for the OS) and a RAID 5 over 4 drives (for VM data). The raid recently failed. I say the word failed very ...
0
votes
0answers
15 views

File Recovery on a 4TB drive with partition damage showing 50TB of data to recover?

I have a drive that has partition damage that I have reached a conclusion on that the partition structure cant be recovered. It looks like part of the partition was wiped at the starting sector for ...
0
votes
1answer
56 views

Debian hangs entering single user mode

My Debian system hangs when trying to enter single user mode on "start job is running for LSB" as shown in screenshot below. Any idea how to recovery it? This thing started occurring after restarting ...
0
votes
1answer
53 views

NAS JBOD2 2 Drive Raid 0 Enclosure Failure Data Recovery

I have a Caldigit Enclosure that had 2 2TB Sata Hard Drives in the unit. The Enclosure seems to have failed during a data recovery operation where the partition was lost during a power failure. I am ...
0
votes
1answer
142 views

How to dump usb stick with corrupt partition table?

Question at the bottom. When I insert the 8GB usb stick I get this in dmesg [168699.879019] usb 1-4: new high-speed USB device number 24 using ehci-pci [168699.994177] usb 1-4: New USB device found, ...
0
votes
0answers
37 views

Starting MySQL/TokuDB with missing recovery log

I've lost TokuDB recovery log(HDD has died) and TokuDB won't even start complaining about missing recovery log: /var/log/mysql/error.log: ... [ERROR] TokuDB: Recovery log is missing (persistent ...
34
votes
5answers
17k 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 ...
0
votes
0answers
18 views

LVM - VG not recognised - how to fix?

I have a (CentOS) server running a KVM and a number of (Ubuntu) VM's. Each VM servers disk is mapped to its own LV on the CentOS server. I discovered today that one of the VM's is failing to reboot ...
3
votes
1answer
62 views

recover data from zfs pool on napp-it openIndiana [closed]

I just inherited a desktop PC with napp-it free (openIndiana), it was set up to work as a sort of NAS, it had two disks on 2TB and one 3TB without any redundancy, one of the drives failed and the pool ...
0
votes
1answer
91 views

CoreOS persistant data storage ( creation + backup + restore )?

Im planning to move my whole server stack to coreOS and using docker. The problem is currently there seems to be no good solutions to create a persistant data storage , back it up and easily restore ...
0
votes
0answers
64 views

How to decrypt owncloud backups manually without a working installation?

I recently had a data lack and miss some very important files. Encrypted backups I had an owncloud 8.x instance running on my server last year for keeping backups and already located the wanted ...
1
vote
1answer
52 views

LSI 2108 RAID 5, one disk dead, one more with bad sectors; how can I recover the data?

I have a server with a RAID LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] and 4 disks of 3TB attached, configured as RAID 5. Unfortunately after 3 years of good services one disk died (the ...
2
votes
0answers
54 views

Recovering an RAID6 using ddrescue. mdadm: failed to add, invalid argument

I had 3 drives fail in a matter of a week on a RAID6. Luckily, one drive seemed to be mostly fine. I was able to run ddrescue and it copied all but one small area (couldn't read 14MB out of 3TB). ...
0
votes
0answers
51 views

2TB NTFS Partition Works in linux, Causes windows to hang

I have a ESXi server containing a large virtual disk (1.8TB) on RAID 0, and the server suffered from a power outage. The drive was a storage drive for a Windows Server 2012 R2 file server, which is ...
2
votes
1answer
93 views

Best practices to backup mysql databases

This question concerns best practices for mysql backup with replication and large number of databases. I'm looking for your point of view and suggestions :) I - Current situation I have two ...
0
votes
2answers
2k views

QNAP TS-859U+ RAID5 volume unmounted, e2fsck_64 hangs

We got this QNAP TS-859U+ with firmware version 3.8.1 Build 20121205 at our datacenter. It has Intel(R) Atom(TM) CPU D525 @ 1.80GHz processor and 1GB RAM, 8 of 3TB (Seagate ST33000651AS CC44) drives ...
1
vote
1answer
114 views

zfsonlinux, raidz1: two disk corruptions: How I can use dd/dd_rescue and deceive zpool?

I have zfsonlinux (Centos 7), and raidz1. And I have trouble: two disks are dying. The first disk have Raw_Read_Error_Rate failure in SMART and Reallocated_Sector_Ct error (the disk has run out of ...
1
vote
1answer
120 views

Recover Data from RAID 1 : Array failed

I have a HP Proliant ML150 server with a scsi raid controller installed. Two disks are configured in RAID 1. My problem is when i start my computer, in the beginning, a message appears that the array ...
-3
votes
3answers
22 views

Linux recover faile [closed]

I really did a big mistake. I have a partition sda6 for backup, when writing the iso to a pendrive, instead of typing sdb6, i've typed sda6, is there any way to get back the files
0
votes
0answers
92 views

HP Proliant ML310e Gen8 with Windows 2012 lost RAID data?

I'm having some problems where a client had a fire in the power strip feeding the UPS to their server. When I got there the HP Proliant Gen8 server had been booted and was sitting at a setup dialog ...
0
votes
2answers
50 views

Start an uninstalled MySQL server

Our server just crashed after a 140 day uptime reboot (not booting). It was running Plesk and since it's hosted by Online.net, I'm able to run a recovery system and access my data. It was running a ...
0
votes
0answers
200 views

Mount a Synology hard drive in another Synology

I have a DS112 with a hard drive that started failing. The device cannot boot from the drive. I inserted it into my DS415+. The drive is recognized but has the status uninitialized. When I connect ...
4
votes
5answers
13k 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 ...
0
votes
1answer
44 views

How to restore files deleted from server

An employee accidentally deleted a folder from our fileserver. Is there way to restore this folder without having to restore our backup? (As this would undo a lot of work in other users' folders.) ...
-1
votes
1answer
71 views

Removed 2 hard drives in RAID configuration from Dell Server, need to recover data [closed]

My very old Dell server will not boot up, I am pretty sure it's a motherboard issue. So, I removed 2 hard drives when the computer's power was off. I am assuming the drives were in a RAID ...
2
votes
1answer
281 views

XenServer VHD data recovery

I have the exported disk image of a VM from XenCenter in VHD format. I used compress from the settings, if that has any impact. How I can access the files without creating VM? I have the VM settings ...
2
votes
1answer
20k views

Restoring data from corrupted ext4 partition under LVM - fsck or repair bad blocks first?

I am using Linux on my notebook. My notebook recently fall on ground and now I am trying to save as much data from my damaged hdd as possible. I can boot notebook from Linux live CD. Long story ...
4
votes
3answers
22k views

How to recover data from a corrupted ext3 partition?

A server of mine had a drive failure of some sort which caused the OS (CentOS 5) to crash and stop working (it refuses to boot). So we put another drive with a working OS and from there we try to ...
-1
votes
2answers
60 views

How to Mount Disk from broken USB external Hardware Raid 1 [closed]

I had an external USB 2 RAID 1 (Mirror) with two 2TB disks. The manufacturer is Datacask which is pretty unknown. The chip used is some Silicon Image chip. Out of nowhere, I could not mount the raid ...
35
votes
5answers
8k 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 ...
2
votes
1answer
1k views

Where can I find dskprobe.exe for Server 2012 R2?

As the question suggests, where can I find dskprobe.exe for Windows Server 2012 R2? I need dskprobe to recover a deleted partition and I can not find the application anywhere on my server and looking ...