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Personal NAS

Brief

Scoping an 76 terabyte onsite Network Attached Storage (NAS) and Networking solution for personal usage

  • by rskntroot on 2025-02-15

Assumptions

To acheive redundant 76TB, RAID 6 will be used. This requires a total of 6x 20TB drives. The max supported size would be 96TB using 6x24TB drives.

At a minimum, the storage solution must provide redundant copies of the data. The solution must function in the event of a single-drive failure. Individual storage drives used must be enterprise-grade, warrantied, with the expectation of 1 million hours MTBF.

Given standard network connectivity is at or under 1Gbps speeds, 10Gb/s internal networking is not expected. 2.5Gb networking can be achieved between a NAS a client with a 2.5G switch. However, the storage solution should provide future expansion options for 10Gb/s networking.

Concerns regarding redudant power or battery backup for the solution are outside the scope of this document and would be handled by the customer. Recommened best practice for storage solutions is to keep on a battery backup to allow for graceful shutdown.

Hardware

Chassis

Storage

Networking

Price Breakdown

Hardware pricing can vary greatly. The prices included are meant to serve as an estimate and are provided based on the items' list prices.

Type Description Quantity Base Price
System QNAP TS-673A 6-Bay 1 $1199 $1199 USD
> TeamGroup 2x16GB DDR4 SODIMM 1 $85 $85 USD
> TeamGroup 2TB M.2 NVMe 2 $117 $234 USD
Storage Segate 20TB Enterprise HDDs 6 $415 $2490 USD
Network D-Link 5-Port 2.5Gb Switch 1 $80 $80 USD
> Vabugo 10ft Ethernet Cable 2 $15 $30 USD
> Vabugo 3ft Ethernet Cable 1 $5 $5 USD
> uni USB-C to 2.5Gb/s Ethernet Adapter 1 $28 $28 USD
Total $4151 USD

Depending on customer requirements, budget, and risk appetite the price you see above is likely the most you could expect to pay.