Am Donnerstag 26 März 2009 schrieb [email protected]:
> Hi,

[...]

> So for now, creating an indestructible block device is a fun thing to
> do and provides a backup solution with features way beyond most backup
> software out there.

Well I can hear myself thinking "Ihr habt doch alle einen an der 
Waffel!" - roughly "You have all just gone completely nuts!" ;-). One of 
the standard saying in the company I work.

Crazy stuff you setup there ;-).

> Good:
>  * incremental block-level backup
>  * point-in-time recovery for both, single files and complete volume
>  * works via network, so off-site is possible
>  * real-time backup
>
> Bad:
>  * No cleanerd for this - have to replace volumes by hand
>  * Much backup-space overhead
>  * Probably lots of traffic
>  * No warranty whatsoever, ymmv

inconsistent filesystem in snapshooted loop files? You'd need xfs_freeze 
before syncing the raid to get a consistent one, I believe.

One thing: Can't you use LVM snapshots in a similar way? Hmmm, I think 
performance would crawl with more than a few snapshots.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7

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