Go Beyond External Hard Drives with Network-Attached Storage

If you’ve filled up your external hard drives or become frustrated by their limitations, it’s time to look into a network-attached storage (NAS) device. What’s a NAS? It’s an intelligent storage device that can accept one or more hard drives or SSDs and connects to your network via Ethernet.

NAS Benefits

A NAS is a good choice for anyone who needs access to lots of storage, but small businesses will particularly appreciate the benefits of a NAS. They include:

  • More storage: Most NAS devices provide multiple drive bays, so you can pop in a few large hard drives or even attach expansion units for a vast amount of available storage.
  • Expandable storage: A NAS is perfect if you anticipate your storage needs growing over time. You could start with 3 TB drives today and swap them out for 6 TB drives in a year or two.
  • Data protection: Drives fail, but some NAS devices can ensure that you don’t lose data if that happens by combining multiple drives into RAID arrays.
  • Network backups: Because a NAS is always available on your network and provides lots of storage, it can work well for on-site backups.
  • Laptop access: It’s fussy for mobile users to attach external hard drives to laptop Macs. An always-available NAS eliminates that annoyance.
  • Remote access and cloud storage: You can usually configure your NAS so it’s available over the Internet from outside your network. That means it can work like a private version of Dropbox that’s entirely within your control and has no monthly fees.
  • Streaming media: Home users with massive movie libraries can take advantage of NAS features that make it easy to stream video to computers, TVs, tablets, and smartphones.

NAS Features

Quite a few manufacturers make NAS devices, including WD, QNAP, Drobo, and my personal favorite: Synology. Prices vary widely depending on the feature set. Things to consider include: We are a Synology Authorized Partner and can help you with all of your Network Attached Storage needs from the basic to the most complex.

  • Number of drive bays: The most important decision to make when choosing a NAS is the number of drive bays. It may be tempting to start with a less-expensive two-bay model, but particularly if you want to use RAID to protect your data, that limits your storage significantly.
  • RAID support: RAID works well for preventing data loss if a drive dies. RAID 1 constantly mirrors the data from one drive to another so if one fails, all the data is on the other. RAID 5 uses data striping techniques with at least three drives to preserve data even if one drive fails. Proprietary technologies may be more flexible in terms of the number and size of the required drives. Synology’s RAID Calculator is helpful for figuring out how much space you get with different collections of drives.
  • Ethernet speed and ports: Most NAS devices have Gigabit Ethernet, but you can pay more to get 10 Gigabit Ethernet. That’s helpful only if you have an iMac Pro or a Thunderbolt 3 adapter. Also, some NAS devices have a feature called link aggregation that uses multiple Ethernet ports and an LACP-enabled Ethernet switch to balance traffic across ports for higher performance in multi-user setups.
  • Hardware encryption: For additional security, some NAS devices offer hardware encryption. It requires more CPU power but ensures that a stolen NAS won’t reveal your data.
  • Hardware transcoding: Those who host media libraries on a NAS may find this feature useful. It automatically converts high-resolution video files to versions that are optimized for the destination—there’s no reason to send 4K video to a 1080p TV.
  • CPU and RAM: Since a NAS is a full-fledged computer, it has a CPU and needs RAM to accomplish its tasks. If all you’re doing is serving files, the CPU doesn’t matter much, but for hardware encryption and transcoding, a faster CPU will be helpful. Similarly, those functions, or support for lots of users, may benefit from more RAM, so look for a NAS whose RAM is expandable.
  • Physical factors: Since a NAS runs all the time, pay attention to how much power it draws and how much noise it makes. In general, the less of each, the better.

Use NAS-specific Drives

One final piece of advice. It’s tempting to use old drives you have around, but doing so may be problematic for a few reasons:

  • Combining drives of different capacities can result in unusable disk space in some RAID configurations.
  • The likelihood of failure is higher with older drives, and even if a RAID prevents data loss, dealing with a dead drive is still stressful.
  • NAS-specific drives, as opposed to garden-variety drives, sport features designed to minimize data corruption, minimize vibration, and adjust rotation speeds for longer life.

Instead, look for NAS-specific drives, such as those in the WD Red and Seagate IronWolf lines.

Honestly, while a NAS is a great investment and effective addition to your technical infrastructure, picking the right one is a complex decision. If you need help, get in touch with us to see what we recommend for your specific situation.

(Featured image by Alex Cheung on Unsplash)

Understanding the Relationship between Thunderbolt 3 and USB-C

Apple’s new MacBook Pro with Touch Bar models rely on a new kind of connection port: Thunderbolt 3. Unfortunately, while this switch is great from a technical standpoint, it has caused confusion in the Mac world. Let’s sort it all out.

The root of the confusion is the fact that Thunderbolt 3 uses a different physical connector than Thunderbolt 1 and 2. They relied on the physical Mini DisplayPort connector, which made sense since they are commonly used to connect monitors. Thunderbolt 3 instead relies on the reversible USB-C connector that has previously appeared in the Mac world only on the 12-inch MacBook, where it replaces USB-A.

thunderbolt-3-cables

Here’s the key fact to remember: all USB-C devices, cables, adapters, and chargers should work when plugged into a Thunderbolt 3 port, but Thunderbolt 3-specific peripherals will not work when plugged into the USB-C port of a 12-inch MacBook. In short, Thunderbolt 3 is a superset of USB-C.

The only visible difference between a Thunderbolt 3 cable and a USB-C cable is that a Thunderbolt 3 cable is labeled with the same lightning logo used on previous Thunderbolt cables. USB-C-only cables may be labeled with SS+ for SuperSpeed+.

If you buy a new MacBook Pro and want to connect it to older devices that lack Thunderbolt 3 or USB-C ports, you’ll need a special cable, adapter, or dock. Apple makes a number of these, and more are available from numerous independent manufacturers. The two most important adapters to get are Apple’s Thunderbolt 3 to Thunderbolt 2 adapter and a USB-C to USB-A adapter.

thunderbolt-3-tb2-usb-c

With those handy, you can connect to any Thunderbolt device (including many older Macs and Apple’s Thunderbolt Display) and any USB device. You can also add Apple’s older Thunderbolt to Gigabit Ethernet Adapter and Thunderbolt to FireWire Adapter to connect to Ethernet networks and FireWire hard drives.

thunderbolt-3-ethernet-firewire

Connecting to other displays requires additional adapters, which are specific to the different video standards. Apple makes adapters for USB-C to HDMI and VGA, but not for USB-C to DisplayPort, Mini DisplayPort, and DVI, so you’ll have to turn to another manufacturer for displays that rely on those last three standards.

thunderbolt-3-hdmi-vga

The practical upshot of all this is that if you have a new MacBook Pro with Thunderbolt 3, you may need to get a couple of adapters to be able to migrate data from an older Mac, connect to your existing accessories, and drive external displays and projectors. (Macworld has a nice guide to all the possibilities.) That’s an unfortunate fact of life right now, but in a few years, once most peripherals support USB-C and new Macs come with Thunderbolt 3, there will be one cable to rule them all.