A Guide to Small Business Data Backup: Using NAS and Cloud
Anybody who's ever used a computer for work should know that it's vitally important to backup your data. Whether you're looking at an unexpected drive failure or an accidental nudge of the delete key, having an up-to-date copy of your business data at hand could be enough to save your company from catastrophe.
Nonetheless, many of us are guilty of not backing up frequently enough, or even backing up at all. It's seen as resource-intensive, that can cause complications and a lot of work for an uncertain outcome.
In this guide, we'll be dispelling some of those misconceptions as we explore how even a small business can regularly back up data in a secure, efficient and cost-effective way.
What is a data backup?
To put it very simply, a backup is a complete copy of your data - whether that's a single file or the contents of an entire drive - that resides on a different storage device to the original, and allows for it to be restored if data loss occurs.
Data loss can happen for all kinds of reasons, and it's important to take all of them into account. It’s ok to keep a copy of your backups onsite in case you need a quick restore/recovery, but ideally, you should keep one copy at a separate location. Unfortunately, there are disasters like a fire or flood which would damage all of the backups residing in that location.
How do I backup my data?
Before you boot up Windows Backup and start transferring files to your nearest USB stick, it's important to think about the reasons you're backing up and whether or not your chosen method fulfils those objectives.
In thinking about disaster recovery (DR), there are two very important metrics: recovery point objective (RPO) and recovery time objective (RTO). RPO refers to the maximum age data can reach before it becomes ineffective for backup purposes. RTO describes the length of time your business can survive without that data.
You don't need a formal DR plan to back up your business data effectively, but auditing your drives and servers in terms of RPO and RTO is definitely a useful way to determine what form your backups should take, as well as their storage space.
After that, you can begin to think about making them a reality.
Backing up to an external drive
Today, one of the most common ways for home and small business users to back up their data is onto an external HDD. These are inexpensive, reasonably fast, easy to store and transport, and usually more convenient than lower-capacity removable media like optical disks and memory cards.
Depending on your business needs, grabbing a handful of external drives and backing up files over USB once or twice a week might be more than enough to fulfil your recovery time and point objectives. Just remember to store at least one of them off-site or in a fireproof safe.
It's worth noting here that a ton of free and commercial software exists to make the process of backing up simpler and more efficient. Windows Backup, which is built into modern versions of Windows, is one such example, as is Apple's Time Machine. Using a particular app to copy data is rarely a requirement, but you might find it makes life easier in the long run.
Backing up to NAS
If you don't want the hassle of juggling individual drives, consider backing up to network-attached storage (NAS) device. NAS is a simple way to share files between networked computers, usually comprising a bunch of HDDs in a RAID configuration, so it's a more convenient and resilient choice than a regular external drive.
Some of the best-known NAS vendors include Synology, Drobo and Western Digital, and between them, they offer hardware solutions at a wide range of price points. Just remember that if it stays in your office, your NAS device is no less vulnerable to fire and flooding than the rest of your network. Make sure you have an off-site copy of your data, too.
Backing up to a cloud service
Finally, you have the option of avoiding hardware spend entirely and using a cloud service in lieu of external drives and other storage media. For many small business users, the cloud has completely revolutionized the process of backing up. It's now possible, security and compliance concerns notwithstanding, to implement an off-site backup strategy without spending a penny on equipment, transit and rack space. There is a nominal reoccurring fee for storing your data in the cloud, so you will need to do some financial math to ensure the trade-off between capital expenditures and operational expenses makes sense for your business.
Obviously, you can rely on almost any cloud storage solution - Dropbox, for example - to back up business data. For best results, though, a cloud backup service built for business is usually the better choice. Countless of these exist, with some of the best-known including Carbonite and Mozy. Just remember to check your contract in detail before committing your sensitive data to a third party provider to prevent any horror stories should you choose to change your storage preferences later on.
Remember, though: the method you use to back up should be secondary to whether or not it meets your needs regarding RPO and RTO. Data loss and downtime can be enough to bring a small business to its knees, and it’s a much better value proposition to spend a little now versus a lot later. The good news is, you have plenty of viable and cost-effective backup options that can keep your business up and running, while keeping your customers happy.
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