[CentOS] Re: Planning Mail Server (with low resources)

[Rodrigo Barbosa]

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On Wed, Dec 07, 2005 at 03:38:21PM -0800, Bryan J. Smith wrote:
> > Actually, I was talking about brand/vendors.
> 
> Like?

Like DDS-4 tapes from HP. I have had about 5% tape failures with those
so far, while Sony tapes failures are bellow 1% (for me).

> > Your solution for a centralized backup server is one I
> > would recomend too, and have even implemented it on the
> past.
> 
> But how?
> 
> Are you streaming from end-node to end-tape over the network
> during the limited backup window?
> 
> Are you at least buffering the process, although that still
> has some backup window constraints?
> 
> Or are you only sending diffs to entire stores on fixed disk,
> and then only sending full backups to tape only when you need
> to off-line it?

Replying on this one should answer for all the others, while
saving space.

Yes, what I do is use the disk array on the backup server to
aggregate all the information that needs to be backed up,
and then I put it on the tape. I thus consider the disk
array as a aggregation space for the data.

That aggregation, of course, is implemented in different ways
depending on the specific requirements and characteristics of
each network. Something the aggregation will happen asyncronously
during all day, sometimes in a fixed time windows.

[]s

- -- 
Rodrigo Barbosa <rodrigob at suespammers.org>
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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