# Synology RS816
The Synology RackStation RS816 is a 4-bay rackmount Network Attached Storage device, that was acquired by the KH3 before 2020. Currently it used to store and synchronize design files and backup data from employees that have left the KH3.

![rs816](../../assets/rs816.png)

## Device Information
The Synology NAS runs on DSM 7.0-41890, which is the operating system for Synology's NAS devices. 
Below is a summary of additional information about the device

| Specification      | Value                       |
| ------------------ | --------------------------- |
| Server Name        | kh3-fileserver              |
| OS                 | DSM 7.0-41890               |
| Model              | RS816                       |
| CPU                | MARVELL Armada 385 88F6820  |
| RAM                | 1GB                         |
| Capacity           | 3.6TB                       |

![rs816-info](../../assets/rs816-01.png)


## Configuration
The device is set up with four 4TB drives, utilizing Synology Hybrid Raid (SHR) for data redundancy. This means that up to two drives can fail without any data loss, although the usable storage capacity is limited to around 4TB. which provides a flexible and easy-to-use solution for managing and protecting data. It has several applications installed, including DHCP Server, DNS Server, LDAP Server, Log Center, Storage Analyzer, Synology Drive Server, and Universal Search.

It is connected to the same local network and subnet as other office client PCs, but it has two statically assigned IP addresses. Synology sync client is installed on the PCs of all designers and selected design folder from the designer's PCs are synced to their personal folders on the NAS. Additionally, data is copied from various sources and manually backed up to the NAS.

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## Security Measures
Access control is implemented using local DSM users accounts, each KH3 employee has a local DSM account on the NAS and a personal folder.  There's just a single administrator account to reduce the attack surface of the NAS and improve security. 

## Maintenance

Currently Synology NAS RS816 is running low on disk space and needs to be decluttered, however the medium term plan is to replace the NAS with a primary storage device and use the NAS for backups primarily.

## Conclusion
In summary, the Synology NAS RS816 is a valuable device for the KH3's business operations. However, it is important to take additional steps to ensure data security and perform regular maintenance to keep the device running smoothly.
