There is a tool available (called hIOmon) that can capture the extent to which the Windows operating system is actually issuing SSD TRIM commands.
The tool includes a "Windows Sidebar Gadget" that can display a subset of TRIM-related metrics during everyday, normal usage of your computer...
To help answer your second question, you might want to check out the "hIOmon SSD TRIM Metrics" display gadget (30-day free demo version available for download):
http://www.hyperIO.com/hIOmon/AddOns/Gadgets/hIOmonSSDTrimMetricsDisplayGadget.htm
It is my understanding that basic hard drives (such as Seagate drive mentioned) have no inherent knowledge of "files". They basically and simply handle the data transfer of sectors/blocks as addressed by means of LBAs (logical block addresses). And they have no knowledge that a particular...
There is a full-feature version of the software for personal use on Windows 7/Vista/XP for $75, but there is a free demo version (full feature) that can be downloaded and used for 30 days.
Regarding the performance impact of file fragmentation, the fact is that a single file I/O operation to a "fragmented file" can incur two (or more) disk I/O operations in order to satisfy the data transfer required by the single file I/O operation.
Such "split I/O operations" can result in a...
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