Re: AD Site Criteria and DFS
- From: "Herb Martin" <news@xxxxxxxxxxxxxx>
- Date: Wed, 30 Aug 2006 11:05:50 -0500
"Alb5150" <Alb5150@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:BF98173B-F7E6-4CE6-83EC-4185011FDF70@xxxxxxxxxxxxxxxx
Correct there is no replication going on here. It's a total read/write
cache
that is file aware across the enterprise..meaning that if a file is in use
on
the remote cache appliance...no one else can use it. Also you can use an
appliance that has a 100GB cache that is fronting a 500GB server. The only
files in the remote site that get put in cache is the "Active" data set.
You
know how offices can have a 500gb server but about 50gb has been accessed
in
the last 90 days... we'll this is perfect for a cache box. The cache also
manages itself, when it gets 95% full it purges the cache back down to 75%
based on least recently used...again this purges the cache only not the
data
on the file server you're optimizing.
Check it out.. http://www.packeteer.com/products/ishared/
Sounds pretty cool. Right after we teach people about DFS, we
usually have to warn them about trying to use this for "too much"
and ending up swamping their WANS.
Thanks.
--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]
Al
"Herb Martin" wrote:
"Alb5150" <Alb5150@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:9E6D2DC2-84B6-4C02-A6A5-9367E445FC39@xxxxxxxxxxxxxxxx
Packeteer's IShared appliance is suited for CIFS over the WAN. You put
a
server appliance in the "datacenter" and a remote appliance in the
branch
office. The appliance runs windows and to the users in the branch it
looks
like a windows file server. The shares the users see are a real-time
window
into the datacenter file servers. There is an optimized tunnel that
runs
between the datacenter and branch appliances, that does streaming and
compression and file aware differencing. So as users access files they
see
on
the remote they get optimized accross the WAN then stored on a cached
volume
on the remote. The datacenter appliance places a lock on the original
file
on
the file server while the user in the branch has it open. If a user
makes
a
100k change to a 3 meg word file, only the changes get sent across the
wan
and the original gets updated. The next access to that same file will
be
served up from local cache and the software will first checkk the
datacenter
and see if the cached copy is the locked and if it's the latest rev. If
it's
not locked and the original has changed..it'll send the deltas to the
branch
and serve it up to the user. It's cool cause you can forget about file
servers and the hassles of backups in the branch. The authoritative
copy
is
always on the datacenter file servers. It's truely "tight
collaboration"
unlike R2's "loose collaboration". Another cool thing is since that the
appliance runs windows it can be a DC, DNS, DHCP and Print server all
in
one
footprint. Yet another cool thing is that they sell software..which is
what
we bought...so I've deployed the WAFS solution on DELL 1850's instead
of
an
appliance.
Thanks -- that is interesting.
Sorry for the long winded responce...hope this helps...any more
questions
let me know...I'd be happy to answer.
Never need to apologize for a complete response since
that is both how we learn AND anyone who doesn't care
can just hit next or delete.
So (as I understand it) it looks and acts like DFS BUT it
is much more optimized for file transfer and file locking,
i.e., not dependent on the built-in FRS for the replication?
--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]
Al
"Anthony" wrote:
Just interested in how well it works, and what it is best for,
Anthony
"Alb5150" <Alb5150@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0A24FF34-4700-4AE4-8368-AA98F7C5D6FE@xxxxxxxxxxxxxxxx
No problems with the appliance do you have any questions about it?
I've
deployed many.
Alan
"Anthony" wrote:
I would be really interested to hear how you get on with that
appliance,
Anthony
"Alb5150" <Alb5150@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1BCF254B-6A9E-4921-8340-280DB974E66E@xxxxxxxxxxxxxxxx
Thanks for the reply. I understand the auth and dns issues.
Trying
to
deploy
a Tacit Networks/Packeteer IShared WAFS appliance in a remote
site
and
want
it to be the link target for the dfs namespace but we might not
be
able
to
put DC's in all sites. Was hoping that it wasn't a technical
requirement..Thanks to all who replied.
Alan
"Herb Martin" wrote:
"Alb5150" <Alb5150@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:AFEF31F8-0CA6-4852-BE34-400E922FE966@xxxxxxxxxxxxxxxx
Quick question about DFS site selection...
Can you create a site in AD, add subnets, links..etc but not
have
a
domain
controller in the site and have DFS site selection work?
Trying
to
figure
out
if a DC is a requirement...
No, not a technical requirement but consider that if DFS
is a domain resource and access to that resource is critical
then DOMAIN AUTHENTICATION is also critical.
Chances are this will argue for a DC and a DNS server in
that site but you already have at least one server (the DFS)
so it might not even cost you a machine.
And you authentication will be more efficient too.
Any info appreciated...thanks,
--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]
Al
.
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