Linked Questions

6
votes
3answers
16k views

How many writes do I have on my 250GB SSD hard drive on my Macbook Pro High Sierra [duplicate]

I would like to know how many writes I have on my Mac's SSD hard drive? I would also like to know if there is a terminal command I can run to find out this information and how many writes I have left ...
3
votes
1answer
142 views

Tell age of SSD by using iostat? [duplicate]

I did iostat -Id disk0 on my MacBook Pro (MacOS Sierra) and found the total number of reads/writes done on the SSD. Is it true that this is indicative of the age of the MacBook? Should a new ...
17
votes
5answers
40k views

How much data has been written to my SSD over its lifetime?

Is there a Terminal command which will show me how many GB has been written to my SSD through the whole lifetime of the disk? I'm asking because I want to find out how many cycles have been done. SSD ...
11
votes
3answers
1k views

How can I isolate macOS 10.14.6 Mojave freezing 1-2 seconds every few minutes except for sound and the mouse?

Since a week or two I am experiencing a very strange problem on my MacBook Pro running macOS 10.14.6 Mojave. (Build 18G103) No matter what I'm doing, typing something in a browser or text editor or ...
2
votes
3answers
2k views

Does macOS monitor drive health?

My 2017 15" MacBook Pro does not appear to support SMART on any drive. For its internal PCIe drive diskutil reports: $ diskutil info disk0 | grep SMART SMART Status: Not Supported ...
1
vote
2answers
1k views

Does downloading big files reduce my SSD lifetime significantly?

I love downloading movies from the internet, and download files with sizes usually around 600 MB - 1 GB. I have a MacBook Pro with a Retina display, which comes with an SSD. Will downloading and ...
3
votes
1answer
1k views

What tools read SMART data and can run on USB bootable media?

I'm looking for a bootable tool that provide SMART values from my HDD if there is such a thing. So far I'm only able to get into the recovery mode of my MacBook Pro and I need to confirm a ...
2
votes
1answer
580 views

Error -36 on a brand new Samsung 850 SSD drive

I, after some adventure (as described here), have successfully booted OS X installation from a brand new SSD by Samsung (EVO 850). I am running OS X 10.11.6 (Trim is not enabled). My Mac is mid-2009 ...
2
votes
1answer
97 views

Is my HDD throughput normal?

I am a musician, and was finding my 2011 iMac was getting sluggish with more complex tracks. It was topping out the CPU so I bought a second hand 2015 iMac with a much more powerful CPU. I am finding ...
0
votes
0answers
26 views

How do I diagnose a slow Mac from command line? (OS X El Capitain)

I have a very old (I think circa 2009) Mac Mini, which effectively just acts as a NAS for our TimeMachine backups these days. It was working fine until about 2 days ago, when all of a sudden those ...