Mark Twain wrote:
I do have a backup drive for the 780 but I want to
buy 2 more HD's since you said they are becoming
hard to find and I want to be prepared just in case
while I can still get them.

I want to make another backup HD for the 780 and
then have a second for either the 8500 or 780 which
is why I asked the question could I put both.

Robert

Backup drives aren't getting hard to find.

"Enclosures I like" are harder to find.
The next enclosure I use, will be parts from
an enclosure I don't like, plus a housing I make
myself for the thing (metalwork and fan).

Quality hard drives I can trust, are getting hard to find.
Seagate switching to SMR doesn't please me very much.
Finding the more expensive WDC drives spinning down in
mid-session, doesn't make me very happy either.

I'm just a hard-to-please customer :-)
I won't accept any old piece of dreck.

I have a drive here that's been spinning for 40000
hours, and there's not a scratch on it. *That's*
the kind of drives I like. You don't get those
every day.

If you like your new DM001, you could buy a
couple more bare mechanisms today, and worry
about enclosures later. Then you'll have stock
in hand (the storage part, being the most
important part of your project).

*******

For *any* drive, it pays to transfer some files
to them ("test" files) and make sure there are
no issues with the drive itself. So while I can
suggest buying a couple DM001, you don't leave
them "cold in the closet". Try them out, fill the
drive with files, and see if it's healthy afterwards.
As you will get pretty shabby warranty treatment if
you wait too long to return them. You don't even
need to clone an OS onto them, to do the file
test part. Just create one big partition in Disk
Management, and... start testing.

To make a test file (source), this would make a 10GB file
in your current working directory.

cd /d %userprofile%\Downloads

fsutil file createnew test01.bin 10000000000

Then, from File Explorer, copy the 10GB file from
your Downloads folder to your new E: drive or whatever.

You can adjust the fsutil size, as space dictates.

The Microsoft fsutil utility is a bit tricky, in
that it makes an empty file in no time at all.
This is the reason we need to "copy" the file,
and the copy operation converts the "sparse" test
file, into a "real" file on the E: drive. The "real"
copy step, takes "real" time to carry out, and that's
what we're using as a test mechanism. To copy the
10GB file, might take a minute on your Seagate.

There are other utilities that can be used to write
a test file on the new drive directly. But that's more
complicated. Whereas the "fsutil" command is a built-in
command in the OS.

Paul