2x SSD + 2x Spinners

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Cozmo

Active member
Oct 8, 2020
27
3
Montreal, Canada
Hey folks - just wanted to post mine. No real issues here, just wanted to add the the stats.
Kind of disappointed from both SSD's, while pretty much what I expected on the HDD's...

1609372445887.png

Workstation #1, SSD is about 1yo, while HDD is waaaaaay old...

1609372502821.png

Workstation #2, SSD IS ABOUT 1 MONTH OLD, *that* was VERY disappointing... HDD is waaaaay old again...

I guess I might look into possibly running deeper/surface tests on both HDD's to try and figure out how close they are to dying.

Thanks @Steve !!! Great work, as usual !
 
@Cozmo Max transfer rate on a SATA 6 interface (if that's what you have) is 600 MB/s. So, numbers over 500 MB/s don't look bad to me. If you're on a different interface, that may not apply. You could try running SpinRite Level 2 if you have the program available and see if it reduces the variability. I tried that on my drive documented in this thread:


Level 2 will read the entire drive and try to correct errors. That seemed to make some improvement on mine but not so much that I'm sure it was SpinRite that did it. You could run a Level 3, which will read AND WRITE the entire drive. That adds a write cycle to the drive, which reduces the life of SSD's somewhat, so you want to consider if that's what you want to do. I'm doing the Level 3 on my drive for testing purposes and mainly for curiosity. But, that's definitely not something I would do often.

Just for kicks, I googled 860 evo longevity, which is also called endurance or TBW (total bytes written). My laptop has the same drive, by the way, except it's 1 TB. I found this:


According to that, the 500 GB drive can handle 300 TB of writes. So, if you write the whole drive once at 500 GB (or 1/2 TB) of writing, you're using up 1/600th of the drive's life.

Just FYI, it is possible to paste a text table into a message, and have it aligned, by highlighting it and flagging it as code. That setting is under the right hand "dots" on the tool bar and the menu item looks like "</>". That way, you don't have to embed an image. :cool: Hope this helps.

Ron
 
Hey folks - just wanted to post mine. No real issues here, just wanted to add the the stats.
Kind of disappointed from both SSD's, while pretty much what I expected on the HDD's...

Workstation #1, SSD is about 1yo, while HDD is waaaaaay old...

Workstation #2, SSD IS ABOUT 1 MONTH OLD, *that* was VERY disappointing... HDD is waaaaay old again...

I guess I might look into possibly running deeper/surface tests on both HDD's to try and figure out how close they are to dying.
It is normal for the apparent spinner speed to drop off roughly 2:1 from 0% to 100%. This is due to decreasing track circumference going from 0 to 100; thus less data per track, thus more revs to read 1 GB of data, thus more time to read, thus "slower" speeds.
 
HDD's (Spinners) are inherently much slower than SDD's.

With HDD's, speed varies with location on the physical platters. SDD's, being solid state, are generally uniform through-out.
 
Code:
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  500GB WDC WDS500G1B0A-00H9H0        456.6   378.5   426.0   529.5   514.1
 82  1.0TB Samsung SSD 860 EVO 1TB       520.3   543.2   542.7   543.2   543.2

                  Benchmarked: Friday, 2021-01-01 at 12:53

The first drive a few slow at 25%