|Product||Synology Single Bay NAS (DS118) [Website]|
|Summary||Single bay NAS powered by quad-core Realtek SoC with single Gigabit Ethernet and two USB 3.0 ports.|
|Pros||• Performance comparable to the top-rated DS218play
• 4K Ultra HD real-time transcoding
• Very quiet low-power operation
|Cons||• Expensive for a single bay NAS|
It’s been almost three years since we last reviewed a single-bay NAS – and with good reason. The market for single-bay NASes has shrunk significantly. In fact, if you shop for single-bay NASes on Amazon, many that you see are discontinued models.
It’s not that single-bay NASes are bad devices – they just don’t provide the fault tolerance that most NAS buyers want. Single disk devices, by definition, don’t have any fault tolerance. If/when the disk dies, your data is gone unless you have a backup on another device.
That being said, since most NAS manufacturers use a common NAS operating system, many of the features found in more expensive multiple-bay NASes, such as file sharing, media server support, downloadable applications, personal cloud support, etc., are also found in some single-bay NASes, but at a lower price.
This review will focus on Synology’s single-bay DS118, which was announced last October. The DS118 isn’t Synology’s least expensive single bay product. That would be the DS115j, at around $120. The DS118 will be replacing the DS116 to become the entry-level offering in Synology’s “Value” family.
Single bay NASes typically have a Marvell processor and either 256 or 512 MB of RAM; the DS115j has a Marvell Armada 370 and 256 MB. The pricier DS118 has more processing power and RAM. In fact, the DS118’s quad-core Realtek processor, 1 GB of RAM, two USB 3.0 ports and single Gigabit Ethernet port are exactly what you’ll find in the recently-reviewed, top-rated, 2-bay DS218play.
The chart below, generated from the NAS Finder, shows the basic differences between the DS118 and the DS218play. Other than the number of bays, the only major differences are power consumption, price and the version of firmware used for testing. Both NASes require case disassembly to install/change drives.
Synology DS118 and DS218play feature comparison
The callout chart below shows the front and rear panel layouts for the DS118. There are three status LEDs on the front panel along with the power switch. Both of the USB 3.0 ports are on the rear panel. The legacy USB 2.0 ports found on older single-bay NASes are a thing of the past, and, as you’ll see below, USB backup performance on both NASes takes advantage of the USB 3.0 ports.
Synology DS118 Front & Rear panel callouts
Setup is fairly simple, but as noted in the introduction, installation of the disk requires case disassembly to mount your disk with screws into the mounting bracket. You can download the Hardware installation guide for the details. While visiting the DS118 download center, you might want to also download the datasheet or the updated User’s Guide for the DSM 6.1.5 operating system.
The image below shows the main board for the DS118. This board has a large heat sink on the processor.
Synology DS118 board
The image below shows the main board for the DS218play. Both of the boards share the same physical dimensions and have a similar layout of components. That’s not too surprising considering that both the DS118 and the DS218play have similar case sizes that vary only by the width. The boards have very similar part numbers, but the DS218play, as you might expect, has a few additional components.
Synology DS218play board
The table below shows the key component summary for the two Synology NASes. As noted in the introduction, the key components in the two models are the same.
|Synology DS118||Synology DS218play|
|CPU||Realtek RTD1296 quad-core @ 1.4 GHz ARM Cortex A53||Realtek RTD1296 quad-core @ 1.4 GHz ARM Cortex A53|
|RAM||1 GB||1 GB|
|Flash||Macronix 25L6433E 8 MB||Macronix 25L6433E 8 MB|
|Ethernet||In SoC||In SoC|
|SATA||In SoC||In SoC|
Table 1: Key component summary
The DS118 drew 7 W with one of our stock WD Red 1 TB (WD10EFRX) drives spun up and 3 W in power save mode with the drive spun down. By comparison, with the same complement of installed drives, the DS218play with two drives drew slightly more power (10 W) in the active mode and 3 W in power save mode. Fan and drive noise was rated very low for both NASes.