These don't last forever and I find the fastest fix is often to swap in a new drive to copy in the content from backups.
I am connecting to a remote server to work. I attached a 3TB external hard drive to this server and to all my work on it since I elaborate very large files. This hard drive has been working for almost 2 years know without stopping. Several times reached the 90% of the storage and was reported to 50% by deleting useless data. In the last days I find it very slow. As an example when I try to use simple linux commands such as ls, grep or wc to interrogate the files info it can takes even ten minutes. Such a behaviour was not followed previously and if I try the same operations in the internal server hard drive I do not experience the same problems.
Do you think these may be symptoms of a hard drive that is on is way to get broken? At the moment I am moving all my precious data to a NAS and planning to reformat the external hard drive. Do you have any suggestions?
thanks for your help