You have to make sure that the server is running and that the data is not corrupt.
You also have to make sure that all employees' information is safe and that they have uninterrupted access to their data.
Finally, you also need to make sure that should something happen to either the server or one of the users' computers, that there is an SQL backup up and running.
Even today, there are a large number of companies that aren't backing up their SQL servers.
This is absolutely ridiculous since the likelihood of your data becoming corrupted is actually very high.
Most people think in terms of their server getting wiped out in some kind of a disaster, but there are other things that can happen as well.
When you are choosing an SQL backup program, perhaps the most important thing to keep in mind is ease of use.
If it is too difficult to use, or requires some kind of specialized knowledge, you will never use it.
And, if you don't use it, you won't have a backup.
Just having an SQL backup package sitting on the shelf won't help you one bit when your server goes down.
You should also choose a program that allows you to back up your information to an off-site source or up into "the cloud".
By doing so, you will be sure to have a safe copy of your data if your building is destroyed or if your server is irrecoverable.
This may seem far-fetched, but you wouldn't be the first company who was wiped out by a server that had become corrupted or infected by so many viruses that it just couldn't be rebooted, so get backed up today.