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Forum Discussion
tony359
May 05, 2014Apprentice
ReadyNAS Business 6 crashed
Hi all, After some playing with the box and having fitted two brand new 4GB RED drives in it, today I started my first serious data moving. I have a failing HDD on another RAID I would like to repl...
StephenB
May 08, 2014Guru - Experienced User
Just thinking out loud here...
-The disk throughput varies, since the platters spin fastest at the outer edge (linear speed, the RPM is constant of course). So a large fragmented file could have a speed-shift like that, if the fragments were saved in different parts the disk. Fragmentation could be happening on either the NAS or the PC btw.
-Disk caching could also play a role here, possibly the cache was working more effectively at the end of the test.
-Reading a large file is much faster than reading a lot of small files. That could create a speed shift.
A network bottleneck between the NAS and the PC could also potentially explain it, so bypassing the router and retesting makes sense.
-The disk throughput varies, since the platters spin fastest at the outer edge (linear speed, the RPM is constant of course). So a large fragmented file could have a speed-shift like that, if the fragments were saved in different parts the disk. Fragmentation could be happening on either the NAS or the PC btw.
-Disk caching could also play a role here, possibly the cache was working more effectively at the end of the test.
-Reading a large file is much faster than reading a lot of small files. That could create a speed shift.
A network bottleneck between the NAS and the PC could also potentially explain it, so bypassing the router and retesting makes sense.
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