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

=== "UGREEN DXP6800 PRO"

- `1x` QNAP TS-673A 6-Bay `$1199 USD`
- [QNAP Product Page](https://www.qnap.com/en-us/product/ts-673a)

=== "TeamGroup 32GB DDR5 SODIMM"

- `2x` 16GB DDR5 SODIMM `$85 USD`
- [TeamGroup Product Page](https://www.teamgroupinc.com/en/product-detail/memory/TEAMGROUP/elite-so-dimm-ddr4/elite-so-dimm-ddr4-TED432G3200C22DC-S01/)

=== "TeamGroup MP44Q 2TB NVMe"

- `2x` 2TB M.2 NVMe `$234 USD`
- [TeamGroup Product Page](https://www.teamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101/)

Storage

=== "Seagate Exos X20 20TB"

- `6x` 20TB Enterprise HDDs `$2490 USD`
- [Seagate Product Page](https://www.seagate.com/products/enterprise-drives/exos-x/x20/)

Networking

=== "D-Link 5-Port 2.5Gb Switch"

- `1x` 2.5Gb/s Ethernet Switch `$80 USD`
- [D-Link Product Page](https://shop.us.dlink.com/products/dms-105-d-link-5-port-multi-gigabit-unmanaged-ethernet-switch-dms-105)

=== "CAT 8 Ethernet Cables"

- `2x` 10-ft Cable `$30 USD`
- `1x` 3-ft Cable `$5 USD`
- [Vabugo Amazon Store](https://www.amazon.com/stores/VABOGU/page/20815F77-3E58-4871-A2EB-1772920695D9?ref_=ast_bln)

=== "USB-C Ethernet Adapter"

- 1x USB-C to 2.5Gb/s Ethernet Adapter `$28 USD`
- [uni Product Page](https://uniaccessories.com/collections/all-usb-c-products/products/usb-c-to-ethernet-adapter-2500mbps)

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`

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

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