Question Recommended minimum SSD partition size for known data size?

[Pimpom]

What does current wisdom say about the maximum percentage to which an SSD partition should be filled so as to avoid causing a significant slow-down?

To give a hypothetical example: Let's say I have 300GB of data to be dumped into a partition on a new drive and that data is not likely increase to any significant extent in the foreseeable future, but will be regularly accessed. The access will be mostly reads with relatively smaller amounts of deletes and writes.

What is the recommended minimum size for the new partition if the extra space can be spared?

(I know that some people like to have one partition for the OS and the rest as a single partition even on a large disk. But please consider the question as asked.)

 

[hotaru.hino]

If we're talking about overprovisioning, I'm under the impression most SSDs now have firmware enforced overprovision. This is why you don't see SSDs with a capacity in exact powers of 2 (e.g. 240 GB instead of 256)

If it helps you sleep at night though, the general rule of thumb is leave 10% of the drive's capacity open

 

[USAFRet]

Its not a 'partition', but rather the entire drive.

Generally, don't fill it over 80%. No matter what partitions are shown.

Partitions on an SSD are unlike partitions on an HDD>
With an HDD, those are physical spaces.

On the SSD, it is merely a logical representation that the software is showing you.
Having a 1TB drive, with 2 partitions of 500GB each...it is perfectly fine to have 1 of those 'partitions filled to 100%, and the other only filled to 300GB. 800GB total.
The drive firmware does not care about your 'partitions'.

 

[Pimpom]

Its not a 'partition', but rather the entire drive.

Having a 1TB drive, with 2 partitions of 500GB each...it is perfectly fine to have 1 of those 'partitions filled to 100%, and the other only filled to 300GB. 800GB total.

Thanks.