NAS vs Cloud Storage

Choose cloud storage when nobody wants to maintain a server; choose a NAS with an independent backup for shared local storage and a household willing to manage it. Our starting NAS pick is the Synology DS225+; choose hybrid when you want local files alongside cloud sharing and off-site recovery. Decide who restores the files before buying capacity.

Quick choice: cloud-only, NAS or hybrid?

These are workflow recommendations, based on IBM's explanation of NAS responsibilities and the provider recovery documentation below. Cloud-only describes the primary storage location; still plan another copy.

NAS vs cloud storage at a glance

Compare specifications and all conditions

Where working files live

Cloud storage

Provider-hosted storage

NAS plus backup

Your NAS

Hybrid

Assigned folders in each location

Home internet unavailable

Cloud storage

Downloaded files can work offline; online-only files cannot

NAS plus backup

Local access can continue with NAS and LAN available

Hybrid

Local NAS files and downloaded cloud files remain usable

Away from home

Cloud storage

Provider's internet access and sharing

NAS plus backup

Configure remote access; include home upload in the connection path

Hybrid

Use cloud copies for selected shared files

Maintenance

Cloud storage

Provider maintains servers; you manage account access and permissions

NAS plus backup

You manage storage, updates, users and backup jobs

Hybrid

Both sets of responsibilities

Growth

Cloud storage

Check your account's storage entitlement

NAS plus backup

Plan usable capacity, bays and drive replacement

Hybrid

Size each destination for its assigned data

Primary unavailable

Cloud storage

Recover from an independently accessible export

NAS plus backup

Restore from another device or destination

Hybrid

Confirm recovery does not depend on the failed account or NAS

Full comparison table ↔

Swipe to compare. Row labels stay visible.

Decision	Cloud storage	NAS plus backup	Hybrid
Where working files live	Provider-hosted storage	Your NAS	Assigned folders in each location
Home internet unavailable	Downloaded files can work offline; online-only files cannot	Local access can continue with NAS and LAN available	Local NAS files and downloaded cloud files remain usable
Away from home	Provider's internet access and sharing	Configure remote access; include home upload in the connection path	Use cloud copies for selected shared files
Maintenance	Provider maintains servers; you manage account access and permissions	You manage storage, updates, users and backup jobs	Both sets of responsibilities
Growth	Check your account's storage entitlement	Plan usable capacity, bays and drive replacement	Size each destination for its assigned data
Primary unavailable	Recover from an independently accessible export	Restore from another device or destination	Confirm recovery does not depend on the failed account or NAS

Decision	Cloud storage	NAS plus backup	Hybrid
Where working files live	Provider-hosted storage	Your NAS	Assigned folders in each location
Home internet unavailable	Downloaded files can work offline; online-only files cannot	Local access can continue with NAS and LAN available	Local NAS files and downloaded cloud files remain usable
Away from home	Provider's internet access and sharing	Configure remote access; include home upload in the connection path	Use cloud copies for selected shared files
Maintenance	Provider maintains servers; you manage account access and permissions	You manage storage, updates, users and backup jobs	Both sets of responsibilities
Growth	Check your account's storage entitlement	Plan usable capacity, bays and drive replacement	Size each destination for its assigned data
Primary unavailable	Recover from an independently accessible export	Restore from another device or destination	Confirm recovery does not depend on the failed account or NAS

The availability rows are deductions from the file paths. IBM describes provider-hosted storage; Microsoft documents offline downloads. Neither location automatically settles privacy: account permissions and secure administration still matter.

Fill in the household storage worksheet

Inventory every person's files before comparing subscriptions with enclosures.

Our sizing formula is current files + annual growth × planning years + version space + free-space allowance = target usable capacity. Apply it separately to primary and backup destinations.

For example, two 8 TB drives in RAID 1 provide about 8 TB before filesystem overhead, not their combined raw capacity. This calculation follows UGREEN's smaller-drive capacity rule; Synology also documents filesystem overhead.

For our planning estimate, time a representative upload to the intended provider. Divide the full upload set in GB by sustained uploaded GB per hour to estimate the initial transfer; repeat with download throughput for recovery. Backblaze documents competing traffic, file count and network distance as factors that affect speed. Check your internet plan's transfer allowance, and decide whether the daily changes can finish uploading inside your backup window.

Cloud choices: check recovery and export first

OneDrive: our starting point for shared household documents

OneDrive sharing supports links and access for specific people. Check view versus edit permission before sending a family folder. For offline Windows access, select Always keep on this device and wait for downloads to finish.

Microsoft's personal-account recovery window is 30 days for deleted files. Microsoft 365 subscribers can roll back their entire OneDrive within the last 30 days; permanently deleted items cannot be recovered through that route. Files someone else shares with you are outside your own OneDrive restoration scope.

For an independent export, download selected folders outside the synced folder. Microsoft's download instructions describe ZIP downloads and warn that OneNote notebooks are excluded. Personal-account notebooks have a separate OneNote export workflow; verify the result opens in OneNote for Windows before migration.

iCloud Drive: our pick when the household already uses iCloud

Apple documents copying iCloud Drive files to another location; optimized files download before copying. Its archive instructions also cover photo originals. Budget local space for the actual downloaded files.

Deleted iCloud Drive files are recoverable for 30 days, unless permanently removed. Deleting an iCloud Drive file also deletes it from devices using iCloud Drive.

Drive, Photos and device backup are different jobs. Apple says information already synced to iCloud is outside the device backup. Keep the phone-replacement plan separate from the file-archive plan.

Treat these as sharing options. For hybrid backup, check your NAS app's destination list separately: Hyper Backup lists C2 Storage, Google Drive and S3-compatible destinations for folder backups. Verify each person's entitlement and actual export before changing plans.

Starting NAS for household files: Synology DS225+

The DS225+ specifications list two SATA bays, a 2.5GbE port, a separate 1GbE port and 2 GB DDR4 memory. We choose it as the starting point because Hyper Backup documents external-device and cloud destinations for folder and package backups, retained versions and integrity checks. Configure the backup job; owning the enclosure does not create it.

Buying variants: distinguish the enclosure from a reseller's drive bundle. Check the included disks and installed DSM version: Synology's DSM 7.3 announcement permits third-party drive installation and storage-pool creation on its 2025 DiskStation Plus models running DSM 7.3. Its product page still guarantees full functionality only for compatible drives.

More memory and SSD storage: UGREEN NASync DXP2800

The standard DXP2800 has an Intel N100, 8 GB DDR5 memory, two SATA bays, two M.2 NVMe slots and a 2.5GbE port. UGREEN permits the SSD slots to serve as cache or a separate SSD storage pool. Choose it when those resources are part of your plan; prove your chosen backup and restore workflow before migrating everything.

Buying variants: this recommendation covers the standard diskless DXP2800; HDDs and SSDs are separate purchases. UGREEN lists DXP2800GT separately, so match the full name rather than carrying the standard model's specifications across. Mirroring a SATA pair occupies both SATA bays.

Check price on Amazon

Companion NAS disks: WD Red Plus 8 TB, WD80EFPX

The WD datasheet identifies WD80EFPX as an 8 TB, 3.5-inch SATA CMR drive. Its 256 MB cache differs from the 128 MB WD80EFZZ, another 8 TB model. Match the model suffix, quantity and enclosure compatibility; a single drive purchase does not supply a mirrored pair.

Use our NAS hard-drive guide for disk selection and home NAS guide for other enclosure sizes.

For a computer-managed backup destination, the existing TerraMaster D4-320 is a four-bay USB enclosure exposing independent disks without hardware RAID. It needs a host and backup software. Verify NAS USB compatibility separately before attaching it directly to a NAS; our NAS vs DAS guide handles that connection decision.

Plan recovery when the primary is unavailable

The NCSC recommends at least 3 copies, on 2 devices, with 1 offsite. It also explains that this rule alone does not make a backup offline.

• 3 copiesPrimary data plus recovery copies
• 2 devicesSeparate the stored copies
• 1 offsiteA copy outside the primary location

Keep an offline or suitably isolated copy too. NCSC guidance calls for retained versions, backups disconnected from the network, and regular restoration checks. A snapshot residing only on the primary NAS does not cover loss of that appliance.

For a concrete Synology route, create an external multi-version Hyper Backup task for folders and supported packages. Its technical specifications explain that the proprietary .hbk format needs Hyper Backup, Hyper Backup Explorer or Hyper Backup Vault. Entire-system backup requires a supported model and a remote Synology NAS or Synology C2 Storage destination. Test reading the locally accessible backup in the desktop Explorer while the NAS is off. The retrieval instructions require the password for encrypted data; keep the recovery secret separately from the NAS.

Compare complete costs using your own figures

Choose the same planning horizon, usable capacity and recovery target for every column. Enter current quotes and your assumptions about future changes.

Total cash cost = upfront spending + recurring costs over the chosen period + planned replacements + applicable recovery charges. Use annual metered energy and your tariff for power. Count a subscription only to the extent the storage decision changes what you would otherwise pay; include expected capacity upgrades. Record administration hours separately rather than treating your time as free. Check which restore or export charges apply to your chosen service.

1. 1

   Assign ownership

   Name the administrator and an alternate restorer; write down authoritative folders and backup destinations.

2. 2

   Prove independence

   Finish a backup or export, then make the primary NAS or cloud session unavailable during the drill.

3. 3

   Restore and open

   On a clean computer, have the alternate restore sample originals and an older version; record time and missing credentials.

How we choose

We compare official product specifications, drive tables, provider export instructions and recovery documentation. The recommendations, sizing formula and cost worksheet are editorial judgments; interface rates are specifications, not promised transfer speeds. We prioritize a documented restore path and clear household responsibility over raw capacity.

Verdict

Choose cloud-only primary storage if nobody will maintain a NAS, DS225+ plus independent backup for a managed local library, or hybrid for local storage with selected cloud sharing. Consider the standard DXP2800 for its extra memory and SSD slots. Fund and demonstrate recovery before retiring any existing copy.