TriX wrote:
It seems that storage and storage failures are a weekly conversation on UHH, so let me please add the following:
1) RAID systems allow the use of multiple drives to increase capacity, speed or reliability over a single drive depending on the configuration, BUT as has just been seen: (a) dual drive failures and corruption from various causes do happen and can kill all the data in a RAID array. A detailed discussion of the types of RAID configurations is a subject for a different conversation.
2) because of the above, a local backup and a backup/restore strategy that has been TESTED is a must.
3) there is a difference between a backup and an archive, but CDs, DVDs and thumb drives are not ideal media for either.
4) the third piece of your data protection is a off-site copy for disaster recovery (DR) and is critical to protect against all manner of disasters that kill both your primary copy and local backup. If you have decent internet access, a MAJOR cloud provider is the most robust system available. Lacking that, regularly exchanged off-site disks are second best.
5) finally, a NAS (network attached storage) is a storage device (often a RAID) that’s attached to the network, usually via ethernet. It may be accessed using CIFS, NFS or HTTP (for web access). Unlike server attached storage, the file system resides on the NAS. It is speed limited by the network,but may be accessed remotely IF you implement good security protocols.
6) whatever type of storage you choose, local or remote, you should incorporate versioning so you can revert your data to a previous point in time before a corruption or data loss occurred.
Hope this helps
It seems that storage and storage failures are a w... (
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Thank you for this detailed advice. I will definitely be changing and testing my backup system