[XCSSA] From SANS: "So.. Are all of the bad guys really on the outside?"

[X-otic Computer Systems of San Antonio]

On Feb 5, 2008 6:51 PM, X-otic Computer Systems of San Antonio <
xcssa at xcssa.org> wrote:

> On Feb 5, 2008 6:42 PM, X-otic Computer Systems of San Antonio
> <xcssa at xcssa.org> wrote:
> > I would not be adverse to a backup discussion.  I personally use
> AmazonS3
> > for the storage location, and on the tool side I actively use: JetS3t,
> > s3fox, s3cmd.rb/s3sync.rb, Brackup (perl proggie), Super flexible File
> > Synchronizer, and InfiniteBits.info FTP/HTTP frontside (EC2-based) to
> S3.
> >
> > I could augment the discussion with these experiences if anyone is
> > interested.
>
> What's your network experience using off site solutions like Amazon?
> We have a dedicated gig link between our backup servers, so nightly
> backups go pretty fast.


S3 can take it as fast as you can dish it.  Obviously, the S3 is bandwidth
limited, usually on the client side.  I (nor my small customers) have the
luxury of gig connections, more less backup servers.  I have employed this
solution as "favor" situations and as long as the backups are scaled
appropriately, the windows are acceptable.

With most of these, the overhead is low, so BW available is the limit of the
system.  I use 8 hour windows (2100-0500) as a baseline, and a T1 (1.544Mb)
can sustain ~160KBps (~0.5Gb/H or 4G/night) and still handle users, so that
is a reasonable baseline for WAN planning.  Obviously, in a hosted/managed
scenario, it could go much faster.

There are several vendors who have built software/appliances that have
better delta management and local caching methodologies.

HTH,
jp
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