BetaArchive Logo
Navigation Home Database Screenshots Gallery Image Uploader Server Info FTP Servers Wiki Forum RSS Feed Rules Please Donate
UP: 24d, 17h, 36m | CPU: 22% | MEM: 5803MB of 11949MB used
{The community for beta collectors}

Forum rules


Any off topic discussions should go in this forum. Post count is not increased by posting here.
FTP Access status is required to post in this forum. Find out how to get it


Post new topic Reply to topic  [ 10 posts ] 
Author Message
 PostPost subject: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 1:11 pm 
Reply with quote
Donator
User avatar
Offline

Joined
Sun Aug 05, 2007 4:16 am

Posts
725

Location
TeXaS

Favourite OS
Windows Vista Beta 1 (6.0.5112)
I know about .PAR and PAR2 files, and I know that Winrar has a checksum verification, but what about an imbedded option?

Scratch that. Is there a way to keep an ISO an ISO and have a parity or repair file that can be used to restore it in case of data corruption, similar to PAR2? I'm not keen on extracting an iso everytime I want to use it in a Virtual Machine, for instance.

_________________
Laptop: Precision M6300 2.4GHz Core 2 T8300 / 4GB RAM / 320GB HD / ATI Quadro FX 3600m
Server: PowerEdge 1950 (Gen III) (x1) 2.5Ghz Xeon E5420 / 24GB FB-DDR2 / 1.5tb 7.2k SAS RAID 0
Desktop: Precision T5500 2.66GHz Xeon X5650 / 24GB DDR3 ECC / 2x 300GB Seagate 15k7


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 2:13 pm 
Reply with quote
Donator
Offline

Joined
Tue Oct 17, 2006 8:26 pm

Posts
932
Well, it really depends on which way you want to go with it... do you want the correction data OUTSIDE of the image? Do you want it INSIDE the image? Do you want it to be PART of the image (IE the file system, not files on the file system)


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 6:38 pm 
Reply with quote
Donator
User avatar
Offline

Joined
Sun Aug 05, 2007 4:16 am

Posts
725

Location
TeXaS

Favourite OS
Windows Vista Beta 1 (6.0.5112)
RentedMule wrote:
Well, it really depends on which way you want to go with it... do you want the correction data OUTSIDE of the image? Do you want it INSIDE the image? Do you want it to be PART of the image (IE the file system, not files on the file system)


Outside of the image would be best. Something accessible within the file system, but seperate from the image so as to keep the image itself fully untouched. I want to keep it non-compressed or "archived" into multi-part compression files. Basically, two files. One of the image, the other being the recovery file.

_________________
Laptop: Precision M6300 2.4GHz Core 2 T8300 / 4GB RAM / 320GB HD / ATI Quadro FX 3600m
Server: PowerEdge 1950 (Gen III) (x1) 2.5Ghz Xeon E5420 / 24GB FB-DDR2 / 1.5tb 7.2k SAS RAID 0
Desktop: Precision T5500 2.66GHz Xeon X5650 / 24GB DDR3 ECC / 2x 300GB Seagate 15k7


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 10:11 pm 
Reply with quote
Donator
Offline

Joined
Tue Oct 17, 2006 8:26 pm

Posts
932
Why not use PAR2? Or for that matter, just make a second copy of the ISO (compress this backup)?


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 10:16 pm 
Reply with quote
Administrator
User avatar
Offline

Joined
Fri Aug 18, 2006 11:47 am

Posts
12514

Location
Merseyside, United Kingdom

Favourite OS
Microsoft Windows 7 Ultimate x64
RAID5 would provide limited parity protection, but you know how RAID5 arrays are for stability just going by mrpijey's experiences...

_________________
Image

BetaArchive Discord: https://discord.gg/epK3r6A


Top  Profile  WWW
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 10:35 pm 
Reply with quote
Donator
User avatar
Offline

Joined
Sun Aug 05, 2007 4:16 am

Posts
725

Location
TeXaS

Favourite OS
Windows Vista Beta 1 (6.0.5112)
RentedMule wrote:
Why not use PAR2? Or for that matter, just make a second copy of the ISO (compress this backup)?


Well as I forgot to mention, PAR2 is great. But is there a way to build one recovery file and not split into parts? I didn't see that in the options.

_________________
Laptop: Precision M6300 2.4GHz Core 2 T8300 / 4GB RAM / 320GB HD / ATI Quadro FX 3600m
Server: PowerEdge 1950 (Gen III) (x1) 2.5Ghz Xeon E5420 / 24GB FB-DDR2 / 1.5tb 7.2k SAS RAID 0
Desktop: Precision T5500 2.66GHz Xeon X5650 / 24GB DDR3 ECC / 2x 300GB Seagate 15k7


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 11:16 pm 
Reply with quote
FTP Access
Offline

Joined
Wed Sep 13, 2006 11:55 pm

Posts
69
Have a look at dvdisaster.

It lets you create error correction files outside of and within ISO files.


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Tue May 05, 2009 11:24 pm 
Reply with quote
Donator
Offline

Joined
Sat Sep 09, 2006 6:43 am

Posts
768

Favourite OS
Win10/Debian Linux
It seems like PAR2 would be your best bet, unless you want to experiment...

I've thought about a container file format that would be utilizing a GZIP of the ISO, inside a TAR that contains PAR2 data related to the un-gzipped iso file. Not too sure about whether or not that'd help with your problem though :/ Just theorizing container formats :)

_________________
Need disks scanned in the USA? I have a Kryoflux, and am willing to help get your disks archived! I also offer xbox and xbox 360 repair and modding services. PM me for details!


Top  Profile  WWW
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Wed May 06, 2009 4:47 am 
Reply with quote
FTP Access
User avatar
Offline

Joined
Wed Jun 11, 2008 3:45 am

Posts
628

Location
UK
4tified wrote:
But is there a way to build one recovery file and not split into parts? I didn't see that in the options.


There is, though it's not ideal and it may not work for every file. It's fine for smaller files with smaller recovery files but larger files say over a gb and you really should use more recovery files. First set your "Redundancy", say 10%, then adjust the "Source Block Count" slider till you reduce the "Number of Recovery Blocks" to your target ammount. Personaly, I'd recommend using at least 2 recovery blocks, it seems to cause less problems when it comes to verifying.


Image

_________________
Sign my pointless petition; http://www.ipetitions.com/petition/skeptic/


Top  Profile
 PostPost subject: Re: Data Protection for ISO, BIN, DAA, NRG, etc?        Posted: Wed May 06, 2009 6:58 pm 
Reply with quote
Donator
User avatar
Offline

Joined
Sun Aug 05, 2007 4:16 am

Posts
725

Location
TeXaS

Favourite OS
Windows Vista Beta 1 (6.0.5112)
OG wrote:
4tified wrote:
But is there a way to build one recovery file and not split into parts? I didn't see that in the options.


There is, though it's not ideal and it may not work for every file. It's fine for smaller files with smaller recovery files but larger files say over a gb and you really should use more recovery files. First set your "Redundancy", say 10%, then adjust the "Source Block Count" slider till you reduce the "Number of Recovery Blocks" to your target ammount. Personaly, I'd recommend using at least 2 recovery blocks, it seems to cause less problems when it comes to verifying.


Awesome! I'll give that try when I get home! Thanks!

_________________
Laptop: Precision M6300 2.4GHz Core 2 T8300 / 4GB RAM / 320GB HD / ATI Quadro FX 3600m
Server: PowerEdge 1950 (Gen III) (x1) 2.5Ghz Xeon E5420 / 24GB FB-DDR2 / 1.5tb 7.2k SAS RAID 0
Desktop: Precision T5500 2.66GHz Xeon X5650 / 24GB DDR3 ECC / 2x 300GB Seagate 15k7


Top  Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 




Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Jump to:  

All views expressed in these forums are those of the author and do not necessarily represent the views of the BetaArchive site owner.

Powered by phpBB® Forum Software © phpBB Group

Copyright © 2006-2019

 

Sitemap | XML | RSS


Affiliate