Question Splitting an SSD partition with existing data into two partitions

[Pimpom]

It's my understanding that the physical location of a particular storage cell or sector on an SSD has little to do with its inclusion in a partition.

As such, let's say I've saved some data on a large partition (or a whole disk) and later decide to split the space into two smaller partitions by moving the existing partition's boundary inwards., Is there some risk of corrupting the saved data or some of it ending up in the second partition?

Assume that the now-reduced partition still has ample space for the existing data. (I'm aware of the general need to be careful regarding any operation involving partitions).

 

[SkyNetRising]

I've saved some data on a large partition (or a whole disk) and later decide to split the space into two smaller partitions by moving the existing partition's boundary inwards., Is there some risk of corrupting the saved data or some of it ending up in the second partition?

Splitting a partition is essentially two step process.
1. Existing partition is being shrinked. Amount of shrinking possible depends on location of on data in the partition.
If end of the partition is unused, it can be shrinked. If you have any data exactly at the end of the partition, then no shrinking is possible (without consolidating free space first). Defragmenting can be used for free space consolidation.
2. A new partition is being created in freed up space.

As with any partition management operations - if process gets interrupted for some reason, you can end up with data loss.
Possible reasons - power loss , hardware error, bsod etc.

 

[geofelt]

What might you wish to accomplish by dividing up the drive?

 

[USAFRet]

It's my understanding that the physical location of a particular storage cell or sector on an SSD has little to do with its inclusion in a partition.

As such, let's say I've saved some data on a large partition (or a whole disk) and later decide to split the space into two smaller partitions by moving the existing partition's boundary inwards., Is there some risk of corrupting the saved data or some of it ending up in the second partition?

Assume that the now-reduced partition still has ample space for the existing data. (I'm aware of the general need to be careful regarding any operation involving partitions).

First off, Why this partitioning?
In an SSD, it serves little purpose. And can even be counterproductive.

As you correctly surmise, partitions shown to the user (Disk Management) have nothing to do with physical chips or cells on the drive.

And any partition manipulation needs to be preceded with a full drive backup. Too many things can go wrong.