![]() With feature set and ease of use becoming important across all market segments, we believe that a qualitative evaluation of the different commercial NAS operating systems is needed to educate consumers on the options available. Our previous NAS reviews have focused more on the performance aspect. Enterprise users obviously need NAS units with different performance and feature requirements. However, the benefits provided by a NAS in the local network are undeniable, particularly when complemented with public cloud services. The rapid growth in public cloud storage (Dropbox, OneDrive, Google Drive and the like) has tempered the expansion a bit amongst consumers who are not very tech-savvy. To mitigate this you’ll want another external backup, preferably to the cloud.The market for network-attached storage units has expanded significantly over the last few years. If the box just dies, or if something catastrophic happens like a fire, you’ll still lose all your data. Whichever you choose however, don’t consider your NAS to be the only backup of your data. RAID 6 meanwhile requires four drives but offers both striped and dual parity, so two drives could fail and the RAID could still recover. As data is ‘striped’ across three drives, reads are fast, but at the expense of slower writes because of having to also write the parity data. That means a RAID 5 array can withstand a single drive failure without losing data or access to data. RAID 5 requires at least three drives and offers parity data. You can then replace the faulty disk, and rebuild the RAID array. In this scenario, the second drive is a mirror of the first, so if one drive fails completely all your data is safe on the other. Most NAS drives will offer at least two bays, which means that you can set them up as RAID 1. ![]()
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December 2022
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