I am not looking for a performance improvement. I have a 750GB 7200rpm HDD to store files. Technically this is not a backup, as the only copy of these files reside in this HDD. In the last two weeks I have a heck of a time getting the drive to mount, sometimes it takes three or four unplugs and plugging it back in. As I am typing I am transferring every file on the problematic HDD to a 1TB HDD.Did not honestly see any real improvement over the straight HD when working in Snow Leopard. Probably because I have completely disabled Stoplight, which is a huge drag on HD response.
Personally, I would opt for a higher capacity HDD rather than an SSD for backups. Perhaps some sort of NAS enclosure, with two 5400RPM drives in a RAID configuration might come out to the same price, and give a little more peace of mind?Now that prices of some SSDs have dropped to about $50 more than the same capacity 7200rpm 2.5 in. HDD, or even less of a price gap if there is an amazing sale, would it make sense to use a SSD to back up files instead of a HDD?
I had the same problem a while ago with an External HDD.I am not looking for a performance improvement. I have a 750GB 7200rpm HDD to store files. Technically this is not a backup, as the only copy of these files reside in this HDD. In the last two weeks I have a heck of a time getting the drive to mount, sometimes it takes three or four unplugs and plugging it back in. As I am typing I am transferring every file on the problematic HDD to a 1TB HDD.
If I go get a 1TB SSD since it is on sale and pay only $30-40 more than a 1TB 7200rpm HDD, I may have a peace of mind that there won't be a mechanical failure to the SSD as it does not have moving parts. Does it make sense?
As to the problem HDD, I don't know if it is failing or there is an issue with the USB cable or the drive enclosure. Once all the files are transferred to another HDD, I will test if the cable or the enclosure causes the problem. But I have a feeling that the 750GB HDD is showing signs of problem. The drive has never been trustworthy. I bought it in 2012 or 2013 to replace the stock 500GB 5400rpm HDD in my MacBook Pro. The 750GB drive started to have the problem of not booting up in three months or so. I abandoned using it, reformatted it and put it away until two years ago when I used it to store files again.
I would like to know why you choose such a large capacity HDD to store your files, particularly when you say that they are precious. What if the drive fails, that's a lot of stuff to lose. Would it be better to use a few HDDs of smaller capacity so you don't have "all the eggs in one basket"? I know that there is no HDD/SSD and enclosure that is guaranteed not to fail.Just recently bought a 8tb HDD "regular mechanical" to store only my precious files like games, pictures, Music and all, but all my stuff are backed up to a SSD disk Via TimeMachine.
I am aware of that, a sudden silent death without any warning.
Are 2.5-in. 7200rpm HDDs still being made?
Advice I got from a professional data recovery expert: Backup your Data... and Backup your Backups... and label your drives! Also, keep a record of what is on your drives.
Like other posters here, I use mechanical drives for backup and mirror them for data security. You can generally get at least two mechanical drives for the price of a single SSD, and if you duplicate your backup then your data is still there if one of the drives fails. If you only have the SSD and it fails, your data is gone for good.
To keep track of what is on all my offline backup drives, I use this indispensable app: https://diskcatalogmaker.com/