Didn't mean to imply TSM required tape - only that it's supported...

Scott Rohling

On Fri, Jul 8, 2011 at 9:54 AM, Harder, Pieter <
[email protected]> wrote:

> Just a remark. TSM does *not* have a tape requirement. You can have a disk
> only installation just fine. Do your first level backups to what your
> standard disk for Linux uses. Then migrate to some cheap outside storage and
> have that mirrored to a secondary location. My experience is that the
> software side of TSM is lots cheaper than whatever hardware (tape or disk)
> you need to get to reasonable (Terabyte scale) amounts of data. If you don't
> need that scale just use some outside TSM on x86_64.
>
> Best regards,
> Pieter Harder
>
> [email protected]
> tel  +31-73-6837133 / +31-6-47272537
>
> -----Oorspronkelijk bericht-----
> Van: Linux on 390 Port [mailto:[email protected]] Namens Scott
> Rohling
> Verzonden: vrijdag 8 juli 2011 17:41
> Aan: [email protected]
> Onderwerp: Re: Linux backups and restores to/from tape
>
> The TSM product will do file level backups (with FCP attached tape) under
> Linux on System z .. but it's not free.
>
> I think it's the tape part that's going to limit options..    if you could
> deal with using disk storage for 'archive' purposes, then there are lots of
> open source options..  everything from rdiff (as I recall - an rsync based
> backup with delta archiving) and things like bacula.   You could perhaps
> combine this solution with physical backups to tape of the archive data on
> disk?
>
> Scott Rohling
>
> On Fri, Jul 8, 2011 at 9:23 AM, Frederick, Michael <
> [email protected]> wrote:
>
> > Hi all,
> >
> > A question came up about getting an older version of a file on a Linux
> > disk, which I was able to do by restoring the DASD that held the file in
> > question to a temporary disk and then they could do whatever they liked
> with
> > the file, easy enough.  It got me to thinking about, what would happen if
> > this were to take place on an LVM?  Having a dasd-level backup is likely
> to
> > be of limited use in this case, because you'd more than likely have to
> > restore the entire LVM to a separate set of disks just to get at that one
> > file.
> >
> > So does anyone know of a solution (free being better) that would do a
> > file-level backup for zLinux to a tape?  Or has anyone dealt with this
> > problem before and had some other way around it?
> >
> > Thanks in advance,
> >
> > Mike Frederick
> >
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