Post by J. P. Gilliver (John)[]
Post by PaulAnd something better than a HDD for C: is nice
on a modern OS. For regular bulk storage, I still
Which OSs would you classify as "modern"?
Post by Paullike rotating platters. At least, if the drive
So do I, but for reasons that probably aren't objective. What are _your_
reasons, other than cost?
Post by Paulis a good one. (No shingled crap thank you.)
(What does shingled mean?)
https://en.wikipedia.org/wiki/Shingled_magnetic_recording
That's as opposed to "conventional" PMR.
Since the Wikipedia article is just a pretty bad stub,
a picture will have to do.
The shingled write is on the right hand side of this picture.
Loading Image...Tracks are written in groups of seven. Once a write starts, it is
a continuous process. Seven tracks are written, even if you only
desire to change one byte. This means the simplest operation ends
up as a Read-Modify-Write.
The seven tracks have no clearance visible between them. This
increases the track pitch, but also increase the latency when
doing writes. The cache DRAM on the drive controller board, is
working hard on drives like this.
The conventional drive on the left of the picture, has a gap
between tracks. That size of gap is also present between
groups-of-seven on the right hand part of the picture, but they
neglected to show that.
The first generation of those had terrible (and inconsistent)
write performance. 25MB/sec or so. This has improved enough,
that they're shipping 2TB drives now as shingled models. Who
knows what the reliability is like on an idea like this...
*******
Win10 absolutely needs an SSD. There's too much maintenance
activity to work without it.
If you're using a third party AV, it could be a factor in your
decision too. Even a meek and mild OS like WinXP, with
indexing disabled, might need help if the AV is constantly
scanning.
It's the degree of unnecessary disk I/O that determines
the device type.
And the OS itself has speed limits. There will be times when
you wonder why your NVMe isn't running flat out, and that's
the file system stack you can thank for that.
But at least the NVMe will have nice benchmark results.
Paul