Which hard drive to choose for a family NAS?
Simple guide to choosing a reliable NAS hard drive: capacity, CMR, SMR, noise, warranty, RAID, backup and good compromise 4TB / 8TB.
À retenir
Le bon disque NAS ne se choisit pas seulement au prix
Pour un NAS familial, il faut vérifier la technologie CMR, la capacité utile, le bruit, la garantie, l’usage 24/7 et la stratégie de sauvegarde. La marque compte, mais la référence exacte compte encore plus.
Critères clés
Ce qu’il faut vérifier avant d’acheter
Un disque peut être bon sur le papier et mal adapté à ton NAS si la référence exacte n’est pas la bonne.
Capacité
4 To, 8 To ou plus ?
- 4 To : bon départ si budget serré ou peu de vidéos.
- 8 To : meilleur confort familial sur plusieurs années.
- 12 To et plus : utile si beaucoup de vidéos, plusieurs utilisateurs ou gros historique.
Le piège classique est de dimensionner uniquement avec les photos, alors que les vidéos de smartphone peuvent devenir le vrai poste de stockage.
Erreurs fréquentes
Les pièges à éviter
- Acheter un disque uniquement parce qu’il est moins cher.
- Ne pas vérifier CMR / SMR sur la référence exacte.
- Confondre RAID et sauvegarde.
- Oublier le bruit si le NAS est dans une pièce de vie.
- Comparer WD et Seagate sans regarder le prix du moment.
Deux disques de 4 To
Suffisant pour démarrer avec photos, documents et usage familial léger. Prévois quand même une sauvegarde externe.
Deux disques de 8 To
Plus cohérent si tu gardes beaucoup de photos, vidéos et sauvegardes d’ordinateurs. C’est souvent le meilleur compromis long terme.
NAS 4 baies + capacité évolutive
À envisager si vidéos 4K, plusieurs utilisateurs, Immich, ou volonté de garder le NAS longtemps.
NAS Easy ne recommande pas “WD” ou “Seagate” en général. Il faut comparer les références exactes, la technologie CMR, le bruit, la garantie, la disponibilité et le prix au moment de l’achat.
#1
Why not buy any disc?
A NAS often works several hours a day, sometimes 24 hours a day. It can contain important photos, videos, backups and documents. It is therefore better to choose a disk for this use rather than a chosen desktop disk only because it is cheaper.
#2
NAS disk or classic disk?
A NAS disk is designed to rotate for a long time, better manage vibrations and operate in a housing with multiple discs. Ranges like WD Red Plus or Seagate IronWolf are designed for this use. A classic disk can work, but it is less reassuring for a main storage.
#3
CMR or SMR: the point to be checked
For a main NAS, CMR disks should be preferred. SMR discs can be problematic when writing supported or rebuilding RAID. Before purchasing, check the exact reference of the disc, not just the mark or capacity.
#4
4TB, 8TB or more?
4 TB can be enough to start with photos, documents and some videos. 8 TB give more margin and are often more comfortable for a family over several years. Beyond that, choice depends mainly on videos, computer backups and budget.
#5
Videos change the calculation
The photos take place, but the videos weigh much heavier. If you often shoot in 4K with a smartphone, storage can climb quickly. For a family that shoots a lot, 8TB quickly become more coherent than 4TB.
#6
The noise really counts
A NAS in a living room, bedroom or quiet office can become awkward if the discs are noisy. Some discs are more audible, especially depending on the speed of rotation, capacity and NAS housing. If the NAS is in a living room, silence becomes a real criterion.
#7
RAID: Choose two identical disks?
For a 2-bay mirror NAS, it is often easier to use two disks of the same capacity. This avoids the unnecessary loss of space. RAID helps in case of disk failure, but it does not replace a true external or remote backup.
#8
Guarantee and reliability
The guarantee, the reputation of the range and the intended use count more than just a low price. A NAS disk is a central component: saving a few euros on a questionable reference can be a bad idea if the NAS contains important memories.
#9
WD Red Plus or Seagate IronWolf?
Both ranges are relevant. The choice often depends on the price of the moment, expected noise, availability and exact reference. NAS Easy prefers to compare specific models rather than declare a winning brand in any case.
#10
Should we mix the marks?
Some users like to mix two brands to avoid a batch-related breakdown. For a beginner, this is not mandatory. The most important thing is to choose suitable NAS references, CMR, with a consistent capacity and a backup next door.
#11
Do not forget the inverter
An inverter does not protect against the failure of a disc, but it avoids sudden cuts. It can help the NAS shut down cleanly and reduce the risk of corruption. For an important family NAS, it is a useful protection.
#12
Easy NAS Recommendation
For a family, the right choice is often two 4TB or 8TB CMR NAS drives depending on the expected volume. 4 TB for tight budget or light use, 8 TB for more tranquility. But the real key point remains: adapted NAS disk, separate backup and tested restoration.