On Tue, 26 Jun 2001, Gonyou, Austin wrote:
> Well, my problem reall is that I just want to know how to do multiple xfs
> filesystems dumped to one tape, utilizing xfsdump. I don't want to overwrite
> one dump with another. Here is what I'm talking about for example
>
> 1. Put a brand new blank tape into the drive
> 2. xfsdump -f /dev/st0 /
> 3. <wait....>
> 4. xfsdump -f /dev/st0 /usr
> 5. <wait....>
> 6. xfsdump -f /dev/st0 /home
> 7. <wait....>
> etc...
> Will those actions yield a tape which only has the last dump on it, or will
> it seek to the end of the last dump, and then start writing? If it does do
> that, then I'm set. As I'm led to believe that it does from Steve Lord's
> previous post. I just didn't see that behaviour with dump I don't think, so
> I'm just skeptical without getting it substantiated first. Thanks for the
> feedback.
Doing it with that particular device will result in several dumps that
overwrite each other (I'm pretty sure). To be sure to avoid overwriting
individual dumps use the non-rewinding device:
1. Put a brand new blank tape into the drive
2. xfsdump -f /dev/nst0 /
3. <wait....>
4. xfsdump -f /dev/nst0 /usr
5. <wait....>
6. xfsdump -f /dev/nst0 /home
7. <wait....>
This is how I do my xfsdump backups on my Irix servers and it works
perfectly. If you would like to see a scripted version of this in action
let me know and I'll post my backup scripts.
Now, since I just finally got a tape drive working on my Linux system with
XFS, I have a quick question for the xfsdump folks. xfsdump on Irix gives
sort of a progress report with percent of job done. Is there a reason
this is no in the Linux version?
--
Russ Ingram
Gargoyle Computer Consulting
(307)742-1361
www.gargoylecc.com
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