NAS vs DAS: which is right for you?

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In the first part of our storage blog series, we went back to basics and looked at what to consider when buying IT storage.

In this next part, we get a little more specific – looking at the main differences between Direct Attached Storage (DAS) and Network Attached Storage (NAS).

At the core of it, the main differences between the two systems relate to cost and control. Let’s ‘pop the hood’ on each type of storage system and learn more.

Defining the storage

DAS is a type of storage that (as the name suggests) is directly attached to a server without needing to be connected through a network. It can be attached externally to a server, but only the host server can access the data stored within. All other devices must link through the host server to work with the data it stores.

NAS is a dedicated file storage type that allows multiple users and various devices to retrieve data from a central disk. Users on a local area network access the shared storage via various connection interfaces. This provides an easy way for multiple users within an organisation to share and access files.

Spot the difference

In comparing NAS and DAS, there are different scenarios and settings when each benefit an organisation.

For example, DAS is typically less expensive and technically simpler than NAS infrastructures. This means DAS can benefit smaller organisations that don’t require complicated technical set ups. However, as it is only attached to one server, should there be downtime, access to files and storage is not possible. As such, a back up system would be needed.

On the flip side, NAS provides more control over drives which can also be split into different volumes and groups. It is typically used by organisations to store operational data that is easily accessible or for backups. It also benefits businesses where multiple users may be accessing the IT storage platform remotely. But this also means a defined disaster recovery plan is a must.

DAS products available from ETB

We are pleased to stock several DAS products – PowerVault and Dell SAS SSDs.

While we mentioned the PowerVault in the previous blog, we didn’t look at Solid State Drives (or SSDs).

We are stockists of a range of SSDs. Types and capacities vary, and we can provide a choice of write-intensive, read-intensive, or mixed-use. We are also able to provide a selection of new or refurbished models to suit your needs.

SSDs are vital in creating a seamless operation within any machine. Suitable for large scale enterprises to smaller operations, SAS SSDs can also offer shorter boot times, provide a more immediate data transfer and higher bandwidth. Faster speeds mean SSDs can handle data at the ultra-high speeds necessary in today’s business world, especially when running programs that access large amounts of data such as an operating system. Check out the latest offers we have on SAS SSDs here.

NAS products available from ETB

In the first storage blog we posted, we included some NAS product ranges.

We are proud to be a Dell stockist and three of their ranges that we carry are based on NAS technology: PowerVault, Dell EqualLogic and Compellent. All ranges are widely available and are subject to our one to three year as standard warranty. You can read more on each product here.

Still have questions?

Our sales team is available on 01556 610167 and can guide you through which storage system is right for your needs.

In our next blog, we’ll be looking at the considerations for purchasing networking equipment and how to select the right product.