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Write rate of windows ?

Elixer

Elixer

Lifer
Was looking at the SMART of a MX100, and noticed it has racked up 274GB in writes.
Total hours on is 118.
That means ~2.3GB per hour in writes.

I can break that down to, ~30GB for initial clone, and ~5GB initial testing.
The rest is normal windows stuff going on.
All apps are on a HD.

SSD defrag is off, indexing is off, superfetch is also off, using win 8.1.
All I see is C:\$LogFile (NTFS Volume Log) always writing, via resource monitor.

This can't be normal, so, I am just wondering if anyone else has seen so many writes in so little time ?
 
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My 3 year average for my SSD, set up just about like yours, is 5 GB per day. My average operating day is 14 hours, so less than 1/2 gig per hour. I don't often do anything intensive, so maybe I'm a little below average in writes.

If it's a new installation, I wouldn't draw any immediate conclusions as Windows likes to do housekeeping.

If the installation is several months old, maybe that's another situation.
 
This is certainly not normal and there must be something in the background causing all the writes. My power on hours is 740 and my total written is ~600GB which gives me an average of ~0.81GB an hour. Obviously my install is incorporated into that figure so the hourly average would be lower. This is on Windows 7.

I would keep an eye on resource monitor and see if you can identify the problem.
 
What OS version are you using? Is the host instance virtualized (do you use or have Hyper-V installed)?

$LogFile, $Mft, $BitMap, $Extend \ $UsnJrnl frequently write to the drives (especially to the OS drive), but won't accumulate 2GB/hour (more like .8GB/hour for the system drive and .1 for additional drives, idling.)

Things to investigate: the page file and the memory utilization, hibernation and other power management active options, applications (or even the OS) that logs frequently.
 
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