Wireless Network Hard-drive Back-End

Mar 18, 2006

Does anyone have any experience with placing a multi-user back-end access database on one of these inexpensive "external network hard drives"?

I have a situation where I'd like to share my database with multiple users, but the corporate IM rats have pretty much eliminated all means of allowing us lowly employees of doing that with their network. We have no file server. We do have sharepoint services, but we only have Access 2000, which as far as I know is not capable of exploiting the sharepoint/xml back-end database features. Also, no one in the office here can share a directory on their workstation because they won't grant us administrator priveledges.

So thats how I came upon the idea of buying or creating cheap (<$250 USD) wireless network hard-drive on which to put the back-end. I'm mainly interested in knowing if it will work, and that the performance isn't going to be absolutely pathetic. I'm only looking at having 3 or 4 users at any one time, and the entire database will only house a couple thousand records.

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- Use USB wireless adapters, not card type adapters. One of the prime rules of wireless networking is to keep your adapter - and your Router - away from electrical equipment and metal objects, so why anyone even makes card adapters is beyond me.

- Place your adapters/Router as high as possible (above head height is best) using a USB extension lead for the adapters if necessary. Do not put them on or near metal filing cabinets!

- Think about line of sight when placing your equipment. If your Router and an adaptor are just on either side of a wall , opposite each other, the signal may only have to pass through, say, 6 inches of wall. If they are at opposite ends of their respective rooms, however, it may have to pass through several feet of the same wall!

-If there are other wireless systems nearby using the same channel as yours, change yours to a different channel even if the other signal is weaker than yours. Remember that you need to be 5 channels away from anyone else before there is 0% overlap in the frequencies. If you cannot achieve this because there are too many nearby networks, any difference is better than none.


I have a 9 user (each in a separate room) p2p network in my office running a split Access 2000 db. The place looks a bit odd with USB adapters stuck high up on the walls but it works. Only one user has the occasional hanging problem (about once a week) but she's using an oldish laptop with only 256k of RAM and it has to run Norton Internet Security at the same time. Three of the users have the db open more or less constantly, the rest have no problem or speed issues getting in whenever they wish.


Nearly forgot, our Wireless system is standard 802.11g. max distance from an adapter to the router is about 80 feet.

Sorry if any of the above is stating the obvious, thought it might help.

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Feb 8, 2006

I have completed a database for a company with 60 000 clients and over 100 000 job records.

The database works at very resonable speeds on the Server computer, or the computer on which I installed the back end of the database.

Each of the other 3 computers on the wireless network, have a local copy of the Front End on their machine, and reference the Back End (BE) on the server computer.

Each of the Client computers have varing speeds when accessing the BE, some as slow as 10 minutes for a simple search, filter or just loading a form.

What can I do to improve performance across the network?

Do I need to install additional components on the other computers to improve the db performance?

Your help will be much appreciated.

Joseph.

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Hello,

I found a somewhat related thread but thought I would post a new one just in case my problem happens to others who were 'forced' to "upgrade" to Windows Vista Home Basic when buying a new machine....

Okay, no more complaining, here's the issue:

I have a small (8 MB) Access 2007 database stored on a machine in the office which is running Windows Vista Home Premium. There are two other machines running Windows XP Home (SP2) that can connect to the Access 2007 database with no issues.

But on my Dell Inspiron Vista Home Basic machine, I cannot successfully open the database stored on the Home Premium machine. I CAN see this database, I can see other files and open/copy them, but I cannot open the database. I am attempting to do this using the wireless connection.

I tried running these two commands as the administrator (found on another forum) because I think this is more of a network problem rather than an Access 2007 problem specific to Windows Vista Home Basic


netsh interface tcp set global rss=disabled
netsh interface tcp set global autotuninglevel=disabled

But these two commands did nothing.

I should also point out that when this database is stored on an XP machine (one of the others in the office) the database opens just fine on this Vista Basic machine!

I'm confused and frustrated! Any help is very much appreciated.

Thank you,
Mike

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Hi

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Code:

Option Compare Database
Option Explicit

Private Const RESOURCETYPE_ANY = &H0&
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[Code] .....

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