traffic/bandwidth requirements

JaneSmith's picture
JaneSmith
November 9th, 2009

When a user accesses an item, for instance an email with an attachment or opens up archive explorer, how much traffic is created between the client and the server?  What is the required bandwidth?

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Wayne Humphrey's picture
Wayne Humphrey
2 weeks 2 days ago

Hi Jane, How long is a piece

Hi Jane,

How long is a piece of string.... Its hard to say. What version of Enterprise Vault are you using? if pre 8 then viewing a shortcut, by double clicking it it will bring the compressed saveset over the wire not the MSG so it could be 20%-40% of the original message size, if v8 then it will bring the original msg size of the msg over the wire.

As for Archive Explorer, this depends also on the users content in his archive.  What I suggest you do, is speak to your network team and get them to monitor the traffic on the router, or use a Network Monitor on the client.

you could use something like iperf http://sourceforge.net/projects/iperf/

Src                       Dest             Proto      Throughput
clienta.a.a.a: 1234 ->    EV.b.b.b.:3334   UDP        6Kbps
clienta.a.a.a: 1234 ->    EV.b.b.b.:80     TCP        12Kbps

I don't see why you could not compile it on windows. Just found a windows binary for it :) I'm not a windows bloke, but use it religiously on *nix

http://www.noc.ucf.edu/Tools/Iperf/ -- windows binary

--wayne

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JaneSmith's picture
JaneSmith
2 weeks 1 day ago

We will be using EV9..when it

We will be using EV9..when it finally supports exchange 2010. 

Just trying to figure out if it would be better tp put additional EV server at site where connection speeds are slower or if traffic over the WAN would support having users reach back to retreive archived data.

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Scanner001's picture
Scanner001
2 weeks 1 day ago

Jane, EV9 is not planned to

Jane,

EV9 is not planned to be released until Mid 2010 at least so you have a long time to plan this out

The WAN speed is one item to worry about but so is WAN latency. In many cases Latency is the biggest issue because WAN speed is not so expensive.

If you transfer a file from Site A to Site B during the highest WAN traffic time of the day. If it takes too long to move that file between the sites then it is a good indicator that moving items the same size of the WAN from the archive would be unacceptable. Another quick way to test this is to setup a mailbox on the other site and open the email across the WAN (no cache mode) this will give you an estimate on how long i will take to access the data across the WAN.

Next turn on cache mode on the mailbox and see the difference in accessing your mailbox. Turning on Cache mode is like turning on Virtual Vault (EV8 SP3) which will give the users a local copy of their mailbox offline and it only pulls new items across the WAN as the new items land in their mailbox on the server

Unless you have very high latency and very slow WAN links in most cases you should be OK.
We have a rule that as long as the number of users on a site is below 250 they do not get a local email server which in turn means no local archiving of email also

Liam Finn
http://www.computerusersolutions.com
http://www.enterprisevaultfaq.com
http://www.plymouthrocklodge47.com
http://www.plymouthrocklodge47.com/masonchat

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