Questions tagged [data-recovery]
Reclamation of deleted or otherwise removed/corrupted data (files)
415
questions
0
votes
0answers
18 views
Recover data from old LVM partition on Centos 7
a few days back I my system would not boot up and go directly to emergency mode with no luck getting out, so I decided to reinstall centos 7. However, there are a few files that I would like to ...
-2
votes
1answer
36 views
I accidently deleted the partition tables of my RAID6 drives
I accidentally deleted the partition table of 2 drives in my 4 drive RAID6 by reversing the order of sudo sgdisk -R=/dev/sdb /dev/sdz
parted /dev/sdb print currently reports:
Model: ATA ST2000DM008-...
-1
votes
2answers
45 views
Recovering data from a single-disk raid1 array [closed]
I had an idea of a Raspberry Pi file server using multiple external disk drives in a RAID array. For starters I only had a single 1TB disk so I setup a raid1 array on that disk with the intent on ...
0
votes
0answers
19 views
mechanical differences between 2.5 and 3.5 HDD, in long term offline storage context?
I'm researching best media for long-term offline storage. I've decided a couple mirrored, different brands, spinning HDDs being powered every 6mo is the best spot for amount of data x reliability x ...
0
votes
0answers
25 views
Clone only part of 3 TB disk for rescue
I had a 3TB RAID disk (single partition) that I formatted with ext4, single partition.
Then I realized, I need a file on the disk. :-/ I have not written any files to disk so far.
I ran photo-rec ...
1
vote
0answers
48 views
Recover encrypted LVM
I had Debian install running on LUKS encrypted LVM.
This morning, I wanted to install OS on external disk to be used on another host, but mistakenly I chose the wrong disk... Few seconds in I noticed ...
0
votes
1answer
115 views
How to restore Mysql database from .frm and .ibd files on localhost
I have a VPS server that was hosting a WordPress that has crashed and I think must be deleted.
No backups were made. I managed to setup a rescue mode and salvage WP site data via FTP.
Because Mysql ...
0
votes
1answer
22 views
highpoint rr62x RAID 5 status disable, recover saying parameter error
I have been using a Highpoint rr62x controller(BIOS version 1.3) for about a decade now. The RAID-5 volume is containing 4 disks-each 3TB.
For the last five years my RAID has been disabled. I have ...
0
votes
0answers
65 views
Recover failed RAID1 disk no superblock
I had an Ubuntu installation on RAID1, which was running as degraded for some time without me realizing.
The active disk started to have bad blocks and no longer booted, which is when I realized that ...
2
votes
1answer
98 views
fsck raid10 ext4 partition currupted, restore data
there is a volume in raid10 /dev/md3
it has a GPT partition /dev/md3p1 in ext4 with a size of 16TB.
I accidentally ran
fsck -y /dev/md3
causing the filesystem in /dev/md3p1 to get corrupted.
fsck -b ...
0
votes
2answers
106 views
I accidently ran rm -rf /
I was writing a bash script to automate deleting something.
I used the code rm -rf $path/*
accidently i ran the script without passing path variable and since path variable is null , the command which ...
0
votes
0answers
17 views
RAID 6 and data recovery
I have a question about RAID system. I have a RAID 6 and according to the RAID 6, two drives can fail without losing data. When a hard drive failed and I unplugged it from server then I can't see my ...
0
votes
0answers
16 views
Restoring VD on Perc 6
PowerEdge server with PERC 6 RAID, two VD, RAID 1 with two drives (mirroring) on each.
System went down and when it came back up the four drive status lights all showed green, but a message was ...
0
votes
1answer
72 views
Recover data from broken RAID 1 drive
I need to save files from a Buffalo NAS Linkstation with two physical drives that is not working anymore (2TB each, Raid 1). Error message says:
The bad sectors in the hard drive may have reached a ...
0
votes
1answer
24 views
How do I recover Windows 10 with files recovered from a drive [closed]
I had a drive failure about 2 months ago on my custom built PC with Windows 10 (probably professional version). It was a Seagate drive and they sent the drive to recovery and sent back a USB ...
4
votes
2answers
720 views
Linux XFS partition could not be mounted (can't read superblock) due to suddenly power shutdown, xfs_repair: read failed: Input/output error
After suddenly shutdown, my home directory which is a XFS partition could not be mounted and I can login to system by my account. But I can login with root account (because root and home directories ...
0
votes
1answer
654 views
How to mount and recover data after succesfully building the raid again?
We have a synology nas and one of the 2 disks crashed although smart was passed and the data was intact.
Note that although the disks are not in a raid, years ago we chose SHR and apparently synology ...
0
votes
0answers
185 views
ddrescue of a software RAID drive to an .img file, trying to mount results in unknown filesystem type 'linux_raid_member'
I had a Linux sofware RAID10 fail 2 disks on me and after I tried to force an assembly with the start a RAID10 with 2 disks trick, all I got was an empty lost&found directory. So I ran a ddrescue ...
1
vote
1answer
42 views
NAS not recognizing hard drive
My work has a Thecus N89000 NAS with 5 hard drives, RAID 5. We had a power outage last week and when power returned the NAS was unable to find RAID and no network folders are found. In the admin ...
1
vote
0answers
10 views
DL360 gen7 + 2 SSD Raid 10 crashing and amber lighting nonstop - it works fine with 2 SAS HDD
Thats it pretty much, I have this recently acquired DL360 with 2 300gb SAS HDDs. Every thing works fine with them in RAID 10: no crashes, no sudden amber lights, no amber lights after every reboot, no ...
2
votes
1answer
150 views
Can UNAVAIL zfs be recovered?
My zfs pool is UNAVAIL and cannot be imported. I wonder if there would be any possibility that it is recovered or I can take out any data from it?
Background
I took over management of a server that ...
0
votes
1answer
21 views
Retrieving file and folder inside VM remotely using other system
Recently my teammate accidentally deletes numerous files even important system files inside development server. because of this our staff cannot login even in local so we cannot recover remaining ...
0
votes
0answers
1k views
Accidentally deleted folder in ubuntu 18.04
One of my client project accidentally deleted and this project was on my aws ec2 instance.I used command "sudo rm -rf /home/ubuntu/project" now that folder is removed and i need to recover it asap. I ...
0
votes
0answers
129 views
Recovering a btrfs partition
I'm attempting to recover (what I'm told is) a btrfs partition from a RAID5 array and I'm a bit stuck on the next step...
The reason I mention it was RAID5 is because the array way deleted in the ...
1
vote
0answers
694 views
btrfs bad tree block - cant mount filesystem
I'm hoping someone can help me, trying to recover a btrfs pool, that lost 1st drive. I tried to mount the 2nd drive and I've been having fs errors.
I got the 1st drive readable again, but it appears ...
1
vote
1answer
612 views
LVM after vgcfgrestore got: device-mapper: reload ioctl on (254:19) failed: No data available
Server have Thin LVM with a few volumes:
vm-130-disk-0 - was deleted and need to be restored.
vm-137-disk-0 - was NOT deleted.
Trying to restore /etc/lvm/archive/pve_00336-2034680334.vg which ...
4
votes
0answers
298 views
Recovering/importing ZFS Linux pool with duplicate pool name
I did something very stupid today in attempting to add a third mirror to an existing Linux zpool named backup. Suffice it to say that I made a couple errors because I don't really do much admin with ...
1
vote
2answers
174 views
Recover MySQL tables from removed Proxmox VM
Have the stand-alone Proxmox node with LVM thin and VM 130 volume /dev/pve/vm-130-disk-0 inside it.
VM 130 was deleted accidentally.
Mysql database was lost with VM.
After we've discovered it in a day,...
2
votes
1answer
40 views
zfs rollback/recovery of snapshot on different server
I have created a snapshot of
zroot/jails/jail1
as
jail1@2020-01-10T17:31:40
on server1 and sent this snapshot to
zroot/backups/jail1
on server2
The snapshot was properly created on the ...
0
votes
1answer
117 views
Recovering as much as possible from a LVM where some PVs failed
I have an LVM drive & filesystem made up of 4 disks. One of them has had a hardware failure and doesn't work anymore. When this happeend some of the files were readable on the filesystem, and some ...
0
votes
0answers
31 views
Data recovery from RAID5 volume managed by hardware controller
I am attempting to salvage as much data as possible off a failed 12 TB RAID-5 volume comprising 4 x Western Digital WD4000FYYZ 4TB hard drives in an OWC RAID enclosure that is based on the Oxford ...
0
votes
1answer
683 views
InnoDB recovery from datafiles
First of all, my MySQL DB and Linux skills are not so good. I spent several days searching for a solution and tried several approaches. The following approach is the one I came furthest with.
My SD ...
1
vote
1answer
205 views
Recover data from RAID1 single disk only
root@rescue:~# fdisk -l
Device Boot Start End Sectors Size Id Type
/dev/sda1 69632 102713344 102643713 49G 83 Linux
/dev/sda2 102782976 467808255 365025280 174.1G ...
1
vote
1answer
576 views
RAID partition cannot be mounted, not assigned partition number, after reboot
Problem:
I have a CentOS 7.5 server with an array of 4x 3TB WD Reds in hardware RAID 5. The RAID volume has a single EXT4 partition on it. After a recent reboot of the server, the server can no ...
5
votes
1answer
115 views
Recovering lost VHDX / VM (deleted by Veeam)
Earlier this week a VM on one of our hypervisors experienced extended downtime (~24 hours) due to some Windows updates going wrong. I ultimately was able to fix the issue, and noticed yesterday that ...
4
votes
1answer
206 views
Recover data from RAID 5 with VMFS data store
I own an HP Proliant Gen-6 ML350 server which is not turning on again after a power outage. According to my research it is most likely due to a failue of the power supply backplane or the power supply,...
2
votes
1answer
158 views
Diagnosing missing logical volume
EDIT: the system boots off a 16 gigabyte USB key.
Apparently, at some point, the 'device name' (sorry if I'm using that term incorrectly) of the boot device changed.from /dev/sde to /dev/sdb to /dev/...
0
votes
1answer
45 views
Exchange 2013 powershell mailbox recovery
I wish to script the procedure to bring the mailbox back from Dumpster.
In my normal procedure I do as below
'$Dumpster = Get-MailboxServer | Get-Mailboxstatistics'
'$Dumpster | ? {$_.DisplayName -...
-2
votes
1answer
215 views
Data corruption when rsync command fails
I am using rsync to copy data from machine A to machine B over a network. If rsync fails while copying the data from A to B, will the data at B get corrupted ? Does rsync has any inbuilt mechanism to ...
3
votes
1answer
4k views
How can I recover my ZFS pool, which suddenly went offline and reports that it was “last used by another system”?
tl;dr: I am running a FreeBSD 11.2 NAS server with ZFS on a server with 16GB ECC memory. I've discovered that my main pool has disappeared. ZFS can see the pool, but reports fault ZFS-8000-EY and ...
4
votes
0answers
4k views
Restore mongoDB by --repair and WiredTiger
We accidentally deleted the directory rm -rf /data/db
which was our MongoDB path, and thanks to
extundelete, we recovered it and got the directory /data/db.
Here are our files in the directory, and ...
9
votes
3answers
3k views
Database accidentally deleted with a bash script [duplicate]
Edit: a follow-up question: Restore mongoDB by --repair and WiredTiger.
My developer committed a huge mistake and we cannot find our Mongo database anywhere in the server.
He logged into the server, ...
3
votes
1answer
383 views
photorec photo recovery software not seeing my mounted filesystem - trying to use photorec to recover lost jpegs
What is my situation?
I am working in a Dev Ops capacity for a service that manages jpeg files online. We had an unfortunate deploy and our media files (jpegs) are completely gone. I anticipate that ...
1
vote
0answers
294 views
ddrescue - retry bad sectors starting from the end of the disk
How can I attempt to read bad sectors from the end of the disk, using ddrescue?
I have dynamic volumes and the LDR is kept at the end of the disk, unlike MBR.
I remember that I've tried --reverse but ...
2
votes
2answers
774 views
Failed XFS after resizing partition
I pretty much followed the same general idea as here: Resizing a partition
-Resize VMware disk: Through vSphere, resize disk from 100GB to 300GB
(Reboot VM)
-Delete partition
(fdisk /dev/sdb, d, 1)
-...
1
vote
1answer
107 views
btrfs recover: reliable or last-straw?
The chunk tree of a btrfs filesystem corrupted and I could not recreate it after hour-long reconstruction. As a last resort (besides restoring from backup) I could use btrfs restore -S -x -m -v to get ...
0
votes
1answer
53 views
Examine contents of unused space on the HDD
When using managed dedicated services, either virtual or physical, where you're presented with complete control to an operating system installed on some piece of hardware you don't have physical ...
0
votes
1answer
567 views
Unable to mount a RAID 5 volume
Evening all,
Total n00b when it comes to Linux, I use Xpenology (Synology) as NAS software and following a faulty SATA cable lost my RAID 5 volume - within the OS it's sat in a crashed state.
...
1
vote
1answer
777 views
Recover from a clean, degraded RAID-5
Good morning all,
I have some NAS software which - for the most part - works great, but when something happens to the Hyper-V host it often fails spectacularly. Today is one of those days.
I'm not ...
0
votes
1answer
46 views
Retrieve data from an HD with vmfs partition
My problem is the following:
I have a 1TB HDD with the information of a server that I need now.
I do not know what to do to access the information, inside the HDD there is a vmfs formatted partition ...
