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Re: [Qemu-devel] Add support for new image type
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] Add support for new image type |
Date: |
Fri, 09 Mar 2012 12:26:42 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 |
Am 09.03.2012 11:28, schrieb Paolo Bonzini:
> Il 09/03/2012 10:23, Kevin Wolf ha scritto:
>>> You make really good points on opening up the image file format.
>>> I see real value there in that it would foster development of
>>> other solutions around that format. The problem in this case is
>>> that StorageCraft's backup image format uses proprietary
>>> compression and encryption, and so, regrettably, we can't
>>> (currently) open up that code.
>>
>> This is an interesting statement. Not so much for compression, for
>> which I can't know how much better your solution is than common
>> algorithms. But I always thought that closed encryption algorithms
>> have to be considered bad, because using them would mean relying on
>> security by obscurity. Which probably everyone agrees is a bad idea.
>
> And even for compression, having an open decompressor is usually a good
> idea. Some people have no problems with proprietary solutions but do
> not like lock in (and wonder what to do with their backups if
> StorageCraft disappears).
The lock-in you already get with uncompressed images, but yes, it's a
problem with this file format that would make me avoid it.
Kevin
- Re: [Qemu-devel] Add support for new image type, (continued)
- Re: [Qemu-devel] Add support for new image type, Paolo Bonzini, 2012/03/05
- Re: [Qemu-devel] Add support for new image type, Stefan Hajnoczi, 2012/03/05
- Re: [Qemu-devel] Add support for new image type, Kai Meyer, 2012/03/01
- Re: [Qemu-devel] Add support for new image type, Paolo Bonzini, 2012/03/01
- Re: [Qemu-devel] Add support for new image type, Stefan Weil, 2012/03/01
Re: [Qemu-devel] Add support for new image type, Anthony Liguori, 2012/03/01
Re: [Qemu-devel] Add support for new image type, Kevin Wolf, 2012/03/08
Re: [Qemu-devel] Add support for new image type, Nate Bushman, 2012/03/10