Questions tagged [data-integrity]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
16 views

Robocopy file modification even though MD5SUM matches

I recently joined a company where the admin setup DFS and pooched it by "helping DFS" by manually copying over files to speed up the process. Now on the Secondary site there is a huge backlog, and dfs ...
0
votes
1answer
26 views

How does dropbox handle silent data corruption?

How does dropbox handle silent data corruption? If I have 10 computers synced through dropbox and one day on one of them just some files corrupt unnoticed, will dropbox just sync that 'change' to the ...
1
vote
1answer
54 views

7-Zip. t (Test integrity of archive) command. Syntax. Two variants. Difference

I use 7-Zip. I work in Windows 10 Home 64-bit. I use command line. From 7-Zip help I know there is t (Test integrity of archive) command. Do I understand right way the following? In this case 7z t ...
0
votes
0answers
9 views

7-Zip. t (Test integrity of archive) command [duplicate]

I use 7-Zip. I work in Windows 10 Home 64-bit. I use command line. From 7-Zip help I know there is t (Test integrity of archive) command. Tests archive files. Example: 7z t archive.zip *.doc ...
1
vote
1answer
55 views

What's a good way to batch check media files for integrity?

I have some 15000 image, video and audio files (and also a few others) that I have been bouncing back and forth via FTP from my phone. After so many times, I found out that a few of them were ...
1
vote
1answer
63 views

ISO image integrity check (new try)?

When you open an .iso file with e.g. 7-zip, the tool lets you test the ISO file, just like you can test any RAR or 7Z or ZIP file that the file is still ok. If that test finishes successfully, does ...
1
vote
1answer
361 views

How to turn ReFS “Enforced” file integrity off?

Short Version I have files on a ReFS volume where Integrity Stream integrity is Enforced is true. PS M:\> Get-Item Contoso.vhdx | Get-FileIntegrity FileName Enabled Enforced -------- ...
0
votes
0answers
9 views

How to check integrity of files after rescuing from a broken SSD?

I have rescued plenty of files from a broken SSD which had read errors. The partition was also BitLocker-encrypted. ddrescue gave me a success rate of 99.99% with 190 kB of lost data. I then ...
0
votes
0answers
146 views

Can Nero SecurDisc Surface Scan be rerun after the disc had been burned?

I burned a double layered BD-R disc (UDF file system), it finished successfully then in the midst of the surface scan run I had a power outage before it had the time to finish. All of the data was ...
3
votes
1answer
167 views

How does sfc utility check file integrity?

We know that, in Windows OS, sfc is a well-known utility that checks for the integrity of critical system files. If changes are found, they are replaced by compressed files in Wsxs folder or the like....
0
votes
1answer
391 views

How to verify Integrity of ISO file with these constraints?

I have a Windows 7 Desktop PC. My secondary HDD (SATA Internal) has developed a few bad sectors. Now its state is being reported as Caution in CrystalDiskInfo tool. I have already taken backup of my ...
1
vote
0answers
286 views

Windows 10 - Different methods to disable driver signature check and their realations

For Windows 10 I am examining different methods to monitor the disabling of "driver signature check". From a search online I found 3 main method: from administrator cmd run: bcdedit.exe -set ...
-1
votes
3answers
43 views

Is it possible to see a ping from a LAN computer to an unknown destination?

rookie question... Two computers in a home network connected only by Ethernet to a router. The router is connected to internet and gives the computer ip:s like 192.168.10.xx. One of the computers ...
0
votes
0answers
241 views

How do you check the integrity of a VHD without using Powershell or Hyper-V Manager?

I'm running Windows 10 Home, so I cannot enable Hyper-V manager nor use Powershell cmdlets like test-vhd. I used Paragon Hard Disk Manager 16 to create a backup image of my HD in .vhd format, and I'd ...
1
vote
1answer
179 views

How to be sure that readonly snapshot is not corrupted in BTRFS?

How can we sure that a readonly snapshot is not corrupted due to a disk failure? Is the only way calculating the checksums one on another and store it for further examination, or does BTRFS handle ...
0
votes
1answer
83 views

How to ensure complete file integrity of key files?

A question in regards to file integrity: How can I ensure that the integrity of a file will always stay 100%? Important for example when storing key files in regards to encryption etc. on local ...
2
votes
1answer
124 views

Can a device ruin an SD Card or microSD card?

I have a device that I think might be ruining microSD storage cards (SanDisk cards). The device happens to be a smartphone (an older Samsung Galaxy S), but this question applies to any device. Is it ...
1
vote
1answer
603 views

HPA (Host Protected Area) disabled. Bad consequences?

If an SSD's HPA is disabled, then are there any bad consequences? (In terms of data integrity, wear leveling, etc.) Do the following options make any difference to the SSD controller? HPA disabled, ...
1
vote
1answer
60 views

Check that files exist on remote server with different directory structure or organization

I have made a NAS project to replace an aging shared external disk drive, and before decomissioning the old shared disk drive, I'd like to verify that I have copied all important data to the new NAS. ...
5
votes
1answer
2k views

How to get Btrfs verify checksum for one file?

Btrfs offers these commands to verify data integrity/checksums: btrfs scrub start <path>|<device> btrfs check --check-data-csum However, AFAIK those always verify whole filesystems; the ...
40
votes
3answers
8k views

Does Git prevent data degradation

I read that ZFS and Btrfs use checksums to prevent data degradation and I read that Git has integrity through hashing essentially everything with each commit. I was going to use a Git server on a ...
4
votes
2answers
1k views

Is there any reason to verify a download checksum over HTTPS

Assuming that both the page linking the download, and the download itself are on trusted domains over HTTPS, is there any reason to worry about checking the hash/checksum of the downloaded file (...
4
votes
1answer
4k views

Interpreting the Spin Retry Count S.M.A.R.T. attribute value for hard drives

I'm confused about the Spin Retry Count S.M.A.R.T. attribute value. On one particular hard drive, I see a raw value of 0, which the popular CrystalDiskInfo v7.0.5 interprets as a current value of 166,...
0
votes
1answer
70 views

Behavior of thumb drives when disconnected from power

Less than 2 months ago, I ordered a thumb drive (cheap one). I used it the day it arrived and I think about 3 days after that. Merely checked it with badblocks and then dd-ed a Linux image into it. It ...
4
votes
3answers
5k views

Can ZFS cope with sudden power loss? (What events cause a pool to be irrecoverable if the disk itself hasn't failed or become unreliable)

All the resources say ZFS doesn't have fsck, or recovery tools, use battery backed SSD for ZIL, etc. If the plug is suddenly somehow pulled (total power loss despite UPS etc, but assuming no ...
1
vote
0answers
11 views

Disallowing a Windows 7 Pro user to modify directory contents unless he is doing so using a designated Application “A”

Noob here. I've looked around and not been able to find an answer for this on Windows 7 Platform. This pertains to Securing data files. The basic idea is that files should not be permitted to be ...
30
votes
3answers
4k views

Can data on a hard disk degrade without Windows warning me that this has happened when I attempt to access the data?

Is it likely that a physical degradation of a hard disk could cause bits to 'flip' in file contents without the OS 'noticing' and telling you about it when reading the file? e.g. could a 'p' in an ...
0
votes
0answers
225 views

How to interpret an “SFC /VERIFYONLY” CBS integrity log (win10)?

I ran an SFC on my system and it tells me that there were some "Integrity Violations" and to see the log file for more details. So I was able to open it up in Notepad, but I have no idea what I'm ...
0
votes
1answer
123 views

Recompressing zip - integrity check

I have multiple large zip files and I would like to recompress them without unpacking them (I run the risk of running out of disk space). I am thinking of using advzip for that task. However, I want ...
0
votes
1answer
85 views

Could a CF card submerged in sea water for a few days still work?

The title pretty much sums it up: What are the chances of a Compact Flash card that has been submerged in sea water for a few days still working? The card in question has a pretty expensive licence ...
-1
votes
1answer
40 views

Removing a USB external disk without properly ejecting it

What are the integrity-related issues I might have by simply removing a USB external hard disk from my computer, without logically disconnecting it (e.g. via Windows desktop bar icon)? Is the concern ...
9
votes
5answers
4k views

Do we really need to check the integrity of downloaded files? [duplicate]

I downloaded a huge amount of files, but discovered the use of md5 and sha as integrity checkers quite recently. From then I always prefer to check it for big downloaded files, even if I never found ...
1
vote
0answers
432 views

How do I check integrity of a file from DreamSpark?

I have a very unstable connection and it cut off multiple times while downloading Windows 8.1 using Microsoft's SDM, so I'm kind of concerned to how I can check to see if the file is still intact once ...
2
votes
1answer
1k views

Verify rdiff backup integrity

I am using rdiff for my differential backup. Recently an issue happened where all versions of my backup failed to patch correctly and rdiff returning an error 106 which after investigation is a code ...
4
votes
2answers
2k views

Comparing folders on two unconnected computers

I'd like to compare folders on two different computers. I'm using BitTorrent Sync to synchronize currently 260 GBs of data between two computers: a Windows 7 desktop PC and a Windows 8.1 laptop. All ...
1
vote
1answer
147 views

PXE reliability

I understand that PXE is implemented by using TFTP over UDP - neither one of those protocols verifies integrity, which would seem important for something like the operating system - is there some sort ...
0
votes
1answer
2k views

Transactions per second in a database (say PostgreSQL)

I refer to 2 documentation pages on PostgreSQL's site: #1 and #2. From these, we see the transaction log is flushed to disk 5 times per second (wal_writer_delay = 200ms), and we also see the RDBMS won'...
0
votes
2answers
125 views

File integrity checking

I have a lot of PDFs and many of them may be corrupt. Rather than checking each one, how could I check them all at once and delete any that are corrupt? Using Linux. I also don't have a way to get ...
1
vote
0answers
1k views

Cheaper alternative to ZFS Storage for a home NAS

I'm looking to build a NAS for home use with 8-10*(2-4TB) drives, out of which 2-3 drives would be used for parity via software RAID. In the past years and up to date, ZFS seems to have become the ...
2
votes
1answer
242 views

How to make GNU/Linux more robust in case of frequent power loss

When having a system (hardware), that has no protection against sudden power loss (zero power at all), what is the best way to keep the damage that may occur to a running GNU/Linux as low as possible? ...
10
votes
1answer
2k views

Is ECC mandatory in SSD technology?

While shopping for an SSD I have noticed that some manufacturers promote their "Pro" models as the ones sporting ECC data protection. Those manufacturers do not mention ECC in their budget models ...
0
votes
4answers
3k views

Check if a file has been changed

I have the following scenario: A certain process (A) creates files and I want to write a program which reads these files to generate some statistical data. The problem is simple. I want to be sure ...
3
votes
1answer
300 views

Does flash-memory integrity depend on system resources while reading/writing (like CDs/DVDs)?

Question I’m really concerned that flash-memory is just not reliable as a storage for irreplaceable files. Does anybody know if the integrity (corruptibility) of flash-memory (flash-drives, memory-...
45
votes
1answer
34k views

How do I fix “WARNING: message was not integrity protected” when using GPG symmetrical encryption?

I've encrypted a file using symmetric encryption like this: gpg --symmetric myfile which results in a file myfile.gpg. Alright. Now let's decrypt the file again: gpg -o myfile --decrypt myfile.gpg ...
0
votes
2answers
220 views

Error proofing data

Is it possible to encode data is such a way that it can self-recover from corruptions? (corruptions - for example, hard drive or usb drive with bad sectors) I'm not looking for solutions involving ...
8
votes
1answer
5k views

Does Windows calculate CRCs to check every file operation?

When Windows encounters a file corruption on a file system, it may return the following error message: Data error (cyclic redundancy check). This suggests Windows checks every file operation (copy,...
2
votes
1answer
486 views

Used HDD/ran DiskSmartView/40,000 Power-on-hours?? should i trust it w/ my data, or take it back and complain? [closed]

I just bought a used hard drive from a University Surplus Store. Decided to run DiskSmartView to make sure it wasn't ready to fail. 40,000 power-on-hours I don't know if I feel like trusting my ...
0
votes
2answers
869 views

Is there any chance that my data will get silently corrupted with a robocopy SMB network transfer?

I'm setting up a NAS box for the first time. At the moment, I have most of my data backed up to a few local hard drives, and I intend to transfer all the data to my NAS over ethernet once the RAID ...
5
votes
1answer
3k views

How can I detect (and correct) silent data corruption?

My question is, how can I detect silent data corruption at my home PC (Windows + Linux). I do rsync like automatic backups (with version history). But how do I know in a few months/years that a long ...
23
votes
6answers
2k views

How to transfer a file over pen and paper, with error correction

I'm looking for a way to transfer a file using only a pen and paper. This is somewhat similar to paperbak, except the density I'm looking for is much, much lower, and I don't want to use a printer or ...