This DS1520+ was a warranty replacement from Synology, so the chassis itself is basically a fresh replacement unit and has seen very little use. It has since been replaced by a newer system and is no longer needed. All-in-one ready to go and fast to deploy! Wonderful for home networks, business backups, and tinkerers.
The included HGST drives and SSD each show a few years of power-on time based on SMART data (most sitting around 20-35k hours). The system was used in a home / light-duty environment as a backup media server and has been stable, but as with any used storage equipment, I recommend buyers review the provided SMART screenshots and plan accordingly.
Configured with Synology Hybrid RAID (SHR) and 1-drive fault tolerance, the 5x8TB array provides nearly 30TB of usable storage while allowing for a single drive failure without data loss. Synology’s online RAID calculator shows an estimated usable capacity for this type of setup, and the DS1520+ also supports built-in M.2 NVMe slots as an SSD cache.
The unit will be dusted, wiped, factory reset, and ready for setup before shipment. This unit is installed with DSM 7.3.2 and still receives updates from the manufacturer.