Synology DiskStation DS1823xs+ 8-Bay NAS: features, specs and who it suits

The Synology DiskStation DS1823xs+ is an eight-bay network attached storage (NAS) server sold without drives. Synology positions it as central data storage and sharing for a business, along with backup, virtual machine storage and surveillance management, in places where there is no server rack or data centre. Here is what its features mean and what to plan before buying.

What a NAS does

A NAS is a small computer built to keep files and serve them over your network. Several people and devices can reach the same data, and the NAS can back up laptops, desktops and servers. It also runs applications. Synology says the DS1823xs+ can be deployed easily anywhere to handle central storage and sharing, endpoint and server backup, VM storage, surveillance management and other business applications.

Diskless: you supply the drives

"Diskless" means no hard drives or SSDs are included. You choose and install them yourself in the eight bays. The choice of drives sets your capacity and performance, and Synology publishes compatibility information for its models, so check it before buying drives. Make sure the drive type and size suit the enclosure, as the manual explains.

Eight bays and expansion

Eight bays give you room for redundancy. Storage setups such as RAID spread data across drives so that a single drive failure doesn't have to mean lost data. The listing says you can attach up to two Synology DX517 expansion units, for up to 18 drive bays in total. Redundancy isn't a replacement for backup, so a separate copy of important data is still recommended.

Uptime features

Synology highlights several features for keeping the system running:

• Hot-swappable drives: a failed drive can typically be replaced without shutting the unit down.
• Online volume expansion: capacity can be added while the system keeps running.
• Synology High Availability clustering: according to Synology, two units can be paired so one takes over if the other fails. This usually calls for two compatible units, so check the documentation.

Backup and recovery

The listing describes licence-free solutions for backup, replication and recovery to help protect IT infrastructure. Replication means keeping a copy of data on another device or location, which helps guard against a single point of failure. Check Synology's specification page for the software or application you want to use, since features depend on the package.

Size and placement

It measures about 14.6 x 18.1 x 12.6 inches (37 x 46 x 32 cm). That is a desktop or shelf unit rather than a rack mount, in line with Synology's description of use where no server rack is available. Allow room for airflow and for the cables, and expect a fully loaded eight-bay NAS to be heavy, as hard drives add weight.

Who it suits

It suits small and medium businesses, home offices with large data collections, and IT teams that want a central server for files, backups and virtual machines without a rack. For a simple home backup, a smaller NAS would typically be enough.

What to check before you buy

• Drives: plan the number, size and type, and check Synology's compatibility list.
• Redundancy: decide on a RAID level that matches how much capacity and protection you need.
• Software: check the specification page for the apps you intend to run.
• Network: confirm your switch and cabling suit the speeds you want.
• Expansion: the DX517 units are separate, so check what you need to buy.
• Power and cooling: check the manual on placement, ventilation and power.

The short version

• Synology 8-bay DiskStation DS1823xs+, supplied without drives.
• Expandable to 18 bays with up to two DX517 expansion units.
• Hot-swappable drives, online volume expansion and High Availability clustering.
• Licence-free backup, replication and recovery solutions.
• Aimed at central storage, backup, VM storage and surveillance without a server rack.

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