All posts tagged Office 365

Office 365: Planning – Network Bandwidth Tools

Microsoft has provided some great resources for you to analyse your environment and make an informed decision.

Check out the Network planning and performance tuning for Office 365 article from Microsoft for further information, definitely a recommended read!

Exchange Client Network Bandwidth Calculator

The Exchange Client Network Bandwidth Calculator has been designed to help anyone planning an Exchange Server deployment to predict the network bandwidth requirements for a specific set of clients.

Lync 2010 and 2013 Bandwidth Calculator

A Microsoft Excel spreadsheet that calculates WAN bandwidth requirements for a Skype for Business Server and Lync Server deployment based on administrator-specified user profiles and network information, and a Word document user guide that accompanies the spreadsheet.

OneDrive for Business Client Network Bandwidth Calculator

The best method for determining bandwidth requirements when deploying OneDrive for Business is to measure the bandwidth used during a small roll out.
If this is not possible, this calculator can be used to provide a loose estimate.



Purge a Directory Synchronised Office 365 Account and Resynchronise without Removing from AD

To purge and resynchronise an AD synchronised with DirSync account from Office 365, follow these steps:

1.    Fire up Windows Azure Active Directory for Windows PowerShell (Check out managing Office 365 through Azure PowerShell here).

2.    Run the following command to connect to online service, remembering substitute our friend Fakey McFakerson for your own admin credentials.


3.    Now, we need to grab the user Object ID. Once you obtained it copy and paste it elsewhere as you’ll need it later.


4.    Ok, now that we have the user Object ID we can remove the account.


5.    With the account removed, we now need to purge the account from the Office 365 Recycle Bin. This is where we use the Object ID obtained earlier. Run the following command to purge the user from recycle bin.



With the user(s) accounts purged from Office 365 you need to perform the Directory Synchronisation (unless you are happy to wait for it to sync on the next run? Default is every three hours).

6.   To force immediate directory synchronization, type the following into a run window on the Directory Synchronisation server:

C:Program FilesMicrosoft Online Directory SyncDirSyncConfigShell.psc1

This opens up a PowerShell window with the appropriate synchronisation commands pre-loaded.

7.   Type the following at the command prompt –


And that is it my friends, relatively quick and painless compared to the alternative of having to delete and recover an AD account or recreate from scratch. Remember to leave a comment or a like if this helps you out. Here is the code in a single block for you to copy and paste with greater ease…