Can you put SSDs in a NAS?

Most NAS drives will accept SSDs as well as mechanical hard drives - but is it a good idea?

Most NAS drives will accept 2.5in drives, opening up the intriguing option of populating them with SSDs. But is it a good idea? The main attraction of solid-state storage is its exceptional performance - but in this context that's largely moot. A gigabit Ethernet connection can only handle transfer speeds up to around 110MB/sec, so unless you're willing to spend serious cash on 10GbE hardware, you'll see no benefit from faster drives.

That's not to say the SSD route is completely without merit. We tested the Qnap TS-453B using four 2.5in SATA SSDs, and saw a slight improvement in 4K read speeds - up from 10.4MB/sec to 11.4MB/sec.

And if you've ever sat next to a four-bay NAS appliance, you'll know that the combined noise of four mechanical hard disks all grinding away can be quite distracting. Since SSDs have no moving parts, they run silent, so the only sound from your NAS will be the internal fan.

SSDs also use less power than mechanical disks. Our four-bay Qnap TS-453B, populated with four 1TB Seagate Barracuda 3.5in hard disks, drew 32W from the mains while sitting idle, and 38W while streaming video; switching to four SSDs saw this plummet to 14W idle and 16W while streaming. You'll see a similar drop regardless of which NAS enclosure you choose.

Advertisement
Advertisement - Article continues below

The catch is the cost. A 1TB mechanical disk can be had for 40, so you can set up a 3TB RAID 5 array for 160. The very cheapest 1TB SSD, will set you back around 250 - so you're looking at a cool grand for the same amount of storage. Even for a quieter, more energy-efficient NAS appliance, it's hard to justify such a huge price differential, especially when you remember that performance will be basically identical.

This article originally appeared in PC Pro issue 276

Featured Resources

The IT Pro guide to Windows 10 migration

Everything you need to know for a successful transition

Download now

Managing security risk and compliance in a challenging landscape

How key technology partners grow with your organisation

Download now

Software-defined storage for dummies

Control storage costs, eliminate storage bottlenecks and solve storage management challenges

Download now

6 best practices for escaping ransomware

A complete guide to tackling ransomware attacks

Download now
Advertisement

Most Popular

Visit/operating-systems/microsoft-windows/354297/this-exploit-could-give-users-free-windows-7-updates
Microsoft Windows

This exploit could give users free Windows 7 updates beyond 2020

9 Dec 2019
Visit/security/identity-and-access-management-iam/354289/44-million-microsoft-customers-found-using
identity and access management (IAM)

44 million Microsoft customers found using compromised passwords

6 Dec 2019
Visit/cloud/microsoft-azure/354230/microsoft-not-amazon-is-going-to-win-the-cloud-wars
Microsoft Azure

Microsoft, not Amazon, is going to win the cloud wars

30 Nov 2019
Visit/hardware/354237/five-signs-that-its-time-to-retire-it-kit
Sponsored

Five signs that it’s time to retire IT kit

29 Nov 2019