Questions tagged [data-recovery]
Reclamation of deleted or otherwise removed/corrupted data (files)
449
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Recover ZFS mirror from pool with unavailable device
I tried to expand my two-way mirror to a three-way mirror. The new drive had some filesystem issues (ext4) so I tried to force zpool add -f the drive for ZFS to handle for me. This led to a weird ...
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0
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40
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Repair a forced fsck-ed LUKS volume
In a moment of distraction, I'v managed to run:
# fsck -Ty /dev/sda1, where /dev/sda1* was a LUKS encypted volume.
I don't have a recent backup, so I can't restore. And the backup I have is for the ...
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0
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0
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28
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Data restoration of a RAID1 drive from a QNAP NAS
I have a dead QNAP HS-251 NAS enclosure, using two disks in RAID1. The enclosure is dead, but the drives seem fine. I would like to recover the data on it. .
Of course, I have no backup... Stupidly,I ...
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242
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How to rescue an encrypted LUKS partition that was partially modified by a Windows tool?
On a system with dual boot, the Windows tool Dell SupportAssist started to modify partitions now I ended up with a broken Linux installation.
The Linux installation is/was Ubuntu with an encrypted ...
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BTRFS after multiple power outages bad checksum
After multiple power outages, btrfs have bad checksums, is it possible to recover it?
Outages were on Dell R740xd with PERC H730P Adapter looks like the cache was unwritten.
now trying to recover in ...
5
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2
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105
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Can ZFS send/receive help me recover from partial pool loss after upgrade to Ubuntu 22?
I have a long-running ZFS pool under Ubuntu, which has been through many upgrades. After upgrade from Ubuntu 20 to 22, the encrypted filesystems refuse to mount, though the rest seem OK. zpool ...
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Silicon Image Raid5 search for data recovery options [closed]
In a HP server with windows 2008-R2. There is a PCI Silicon Image SATA raid controller with 4 SATA disks.
In the controller is a config to make them in a Raid5 config.
Windows is seeing them as 1 ...
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268
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LSI MegaRAID SAS 3108: Restoring the online state from Foreign Bad (Frn-Bad) state
We have a Virtual Disk in RAID 5 using only 5 disks, one disk probably is broken because it was in an alert before. Another disk was accidentally pulled out and then it was marked as Frn-Bad when it ...
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Microk8s - Non-HA single node, leaving node removes all pods
Iam running the microk8s in ubuntu in no high availability i.e. there is a single node onto the same machine where it is installed. I updated the certificates and then i issue following command:
sudo ...
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38
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How to rebuild the filesystem of a recovered partition
I managed to ruin a server drive by trying to clone it to another drive with dd. In the process, the original boot and sda1 partitions were overwritten.
I immediatly stopped using the drive,I made an ...
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215
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How to recover partition/filesystem from failed dd command
I have a server with two SSDs of 250GB each.sda contained all my stuff while sdb was empty. I was trying to copy drive sda to drive sdb using the following command:
dd if=/dev/sda of=/dev/sdb conv=...
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1
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41
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Can I restore my HP array after 2 disks replacement?
I have HP array with 12 disk each on 2 TB. I configured them with RAID5
Suddenly two disk has ben failed and after two days another disk have been failed.
And the array failed to start.
I replaced the ...
0
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1
answer
347
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Copied data to LVM-Thin pool by mistake
I'm here today because of a big mistake that I have made.
I created an LVM-Thin data pool (and not on a LVM-Thin LV) on my Proxmox server and (don't ask why) ran a mkfs.ext4 on the pool then mounted ...
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111
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Recover files from deduplicated volume in Windows Storage Server 2016
We have a Windows Storage Server 2016 having some volumes with Storage Deduplication enabled.
Its OS crashed so we had to re-install the OS (couldn't restore from backup).
There are some files which ...
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Data reconciliation for applications
I need to create a plan for a catastrophic data loss scenario where I need to recover some services (multiple apps each) from bare metal using data backups.
The process (i believe) requires the ...
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0
answers
113
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Transferring RAID1 to a new motherboard after HDD failure, and no "Superblock" found
First an OS SDD failure followed by a mobo failure, new mobo/cpu/ram later, and I have a RAID1 with a single working disk, and I am trying to get it remounted so that I can add in a new replacement ...
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219
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ddrescue only rescued half the drive, how do I salvage the rest?
I have a USB hard drive that appears to have failed. Now I'm trying to transfer as much data as possible to a fresh drive with ddrescue -n -f -v /dev/sdb1 /dev/sdc2 recovery.log. I ran into the error ...
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29
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Server Drive issue
My server was not working at all since yesterday, when DC intervention complete they told that one of the drive is defected.
I am using 4x 2To HDD SATA Soft RAID
After they checked and online the ...
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0
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40
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Cron Job Shell Backup file: Permission Failed
Ive been trying to create a Cron Job to Ultimatly back up the Data within my Public Html File
backup-JMORetail.sh Code
#!/bin/sh
NOW=$(date +'%Y.%m.%d')
tar cfz /home/jmoretai/Back-Ups_Local/...
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1
answer
106
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recovering raid5 from 3 working drives, one has a read error
i had 4 drives, lost one drive before, and now another drive was reported by the qnap web gui as having a read error (i did a bad block scan).
now i want to insert a new drive, in the lost drive's ...
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208
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Recovering RAID5 - using Linux "mdadm"
Using Linux mdadm to recover from failed disk / partition.
Here are titles of the steps I took so far - I can post detailed copy if it helps.
( I am not sure how to post file link here...)
The last ...
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1
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347
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Recover storage spaces pool
I've got an old 5x5TB storage pool that I am convinced I set up with two-way parity at the time but now it seems is actually just one-way parity that right now refuses to function anymore. One disk ...
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Can't boot on my Linux anymore after changing boot order (dual boot windows/debian)
Some months ago, I changed my boot order to make my windows in first boot position. Since this day I can't boot on my linux anymore because I don't see it when i'm booting.
After some research I've ...
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59
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What can be done about files with CRC errors?
I have some files that are refusing to copy from one drive to another, giving Cyclical Redundency Check errors on windows 10.
I really don't think there's a problem with the drive(s) they're both ...
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0
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69
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Bit-rot related filesystem recovery with known location of a bit-flip
Bit-rot is very real, having caught one example I now face an HFS+ file system error investigation - suggestions welcome.
Dear all, I'm looking for advice please about next steps having found a single ...
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674
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Windows 10 safely delete recovery partition
One of our processing PCs uses Windows 10 Pro, and I am the one in the unfortunate position of trying to upgrade the capacity of its C:\ drive (SSD) from 1TB to 2TB.
I created an image backup using ...
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22
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2
answers
5k
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Server motherboard died and took Intel RAID controller configuration with it. How do I recover the data?
Old server using a S1200BTS Intel mobo died and has been sitting in a closet for several years. I replaced the motherboard and found that it was originally configured using an onboard hardware raid ...
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How to recover deleted SQL server in Azure?
I mistakenly deleted the database server. I need help. I made the mistake of creating a new server with the same name, will it be possible to recover a database?
I have previous resource name data and ...
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answer
303
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mysql, relocating individual databases vs entire data directory
I need to relocate mysql customer databases to another disk, for the purposes of:
1. Separation of user data from system files
2. Ease of backing up system and user data separately
3. Ease of ...
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0
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2
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106
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One bad sector causes the whole RAID0 to fail? [closed]
In our server, we have four SSDs. The first one is for OS, and the remaining three are for RAID0.
Today, the disk mount corresponding to RAID0 suddenly goes missing. When I check the disks, the 3rd ...
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2
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1
answer
730
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How to use ext4magic in LVM?
I'm trying to recover using ext4magic.my partition was LVM.
try to execute command
ext4magic /dev/sda1 -J -f -s 2048 imges/
error
/dev/sda2 Error 2133571347 while opening filesystem
ext4magic : ...
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Recovering data from a zpool with a missing device
I have a zpool consisting of two mirrored drives, storing all my personal data. I wanted to add another mirror drive, since the other drives have been in use for several years now. Instead, I managed ...
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0
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339
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Recovering data from a Dell MD3220 array after both controllers have databases that were corrupt
I have been working on trying to restore data from an array created on a Dell MD3220 PowerVault storage unit. On the phone with Dell and another support group for weeks now and running into brick ...
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1
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396
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Recover data from failed RAID 5 Dell Poweredge T710 Server [closed]
Very important data on RAID 5 array on poweredge T710 server - how can I get the data back? Willing to spend money to do it (eg buy a replacement system and swap the disks in), would prefer not to ...
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1
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163
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Recovering a nested PV
On my Proxmox 6.4 host, I had an LVM Thin pool that was 250GB large. I created an Ubuntu VM (which used LVM for the root partition as well) on it, but accidentally oversubscribed it, so the PV inside ...
- 103
0
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0
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142
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RAID 5 Data Recovery (Missing Partition)
I really need help.
I am running an XCP-NG server, with an LSI MegaRAID 9260-8i card installed. I have a RAID 5 virtual disk with one partition on said disk that takes up all the space. That partition ...
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3
answers
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Need to recover RAID 6 array
By definition
RAID 6 is an array of independent hard drives equipped with two
independent and distributed checksum schemes
Does that mean I can recover each of the hard drives one by one using ...
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1
answer
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Does one failed drive + one single bad sector destroy an entire RAID 5?
During planning my RAID setup on a Synology Disk Station I've done a lot of reading about various RAID types, being this a great reading: RAID levels and the importance of URE (Unrecoverable Read ...
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Progress for zpool import -fFX
I'm running zpool import -fFX on a 8x4TB striped, mirrored (raid10) pool. The documentation states the extreme rewind import (import -X) performs a full traversal of all blocks in the pool for ...
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2
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1
answer
864
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Recovering data from TrueNAS pool in Ubuntu
I am having a heck of a time trying to get my data off my drives that were in a pool in TrueNAS. I installed Ubuntu on another drive in the same server and loaded Ubuntu 21.04 and installed zfsutils. ...
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1
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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-...
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2
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718
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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 ...
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0
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506
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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 ...
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0
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1
answer
2k
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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 ...
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0
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1
answer
113
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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 ...
2
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1
answer
321
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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 ...
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votes
2
answers
675
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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
0
answers
136
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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 ...
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1
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328
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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
1
answer
36
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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 ...
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