With a NAS share mapped over a Gigabit connection to our Dell PowerEdge T640 Windows host server, we recorded Iometer sequential read and write rates both of 113MB/sec for the DS220j and 113MB/sec and 108MB/sec for the DS220+. The DSM Drive app suite provides a wealth of file syncing and collaboration tools Overall performance for both appliances was very good although we did see some interesting variations. Performance comparisonsįor testing, we fitted two high-capacity 16TB Seagate IronWolf NAS drives in each appliance and used the DSM Storage Manager app to create RAID1 mirrored arrays. You also get twice as many Gigabit ports plus the obligatory dual USB 3 ports and we found the single cooling fans employed by both appliances were exceedingly quiet. The charcoal-black chassis has a magnetic front cover and behind this are tool-free hot-swap carriers so drive installation will be much quicker than for the DS220j. Memory is boosted to the DDR4 variety and the base 2GB can be upgraded to 6GB using the single SO-DIMM slot hidden behind the right-hand drive bay. The DS220+ replaces the DS218+ and elbows out the old 2GHz dual-core Celeron J3355 CPU with the same 2GHz dual-core Celeron J4025 as found in the new DS420+. Hard disk installation hasn’t changed either as you separate the two case halves and fit your drives in the fixed metal cage which is also designed to accommodate SSDs. The DS220j employs the same sleek white chassis and also offers a single Gigabit port and dual USB 3 ports. Both appliance have access to an impressive range of multimedia services including the Video Station and Moments app
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