UNAS2 slow RAW photo copies raise a Mac mini storage question
In a setup, copying CR2 camera files to a UNAS2 was extremely slow. Moving 30 files totaling 722 megabytes took 9 minutes and 30 seconds, which works out to about 1.3 megabytes per second. CR2 s were repeatedly slow.
By contrast, 4K video files sometimes copied at roughly 3 to 4 gigabytes per minute. The experience made the first NAS purchase feel questionable, because an always-on with an external drive might have been enough.
Key points
- 30 CR2 files totaling 722 megabytes took 9 minutes and 30 seconds to copy.
- The measured speed was about 1.3 megabytes per second.
- CR2 s were consistently slow in this setup.
- 4K video files sometimes copied much faster, around 3 to 4 gigabytes per minute.
- An always-on with an external drive became a serious alter.