Solved

Spooky USB HD general query

Posted on 2014-03-26
4
314 Views
Last Modified: 2014-03-26
This is just something which spooked me out. PC #1->plugged in USB HDD, removed it, plugged into PC #2 modified file structure + edited a text file on it on a different PC, plugged it back in to PC #1.
The old file structure was still there, and the text file was the old version.

Re-plugged into PC#1 and the new stuff could be seen (although I don't know what was different about the replug)

I'm curious, I suppose it cached stuff from the USB drive and worked from the cache, but this must be quite a persistent cache, and how do I know when I'm working on the Cache? How do I clear the cache if I want to be sure what I'm looking at?
0
Comment
Question by:Silas2
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 49

Assisted Solution

by:dbrunton
dbrunton earned 125 total points
ID: 39957073
It appears that PC #1 did not recognize the first disconnection and the reconnection and thus the file structure was the same on reconnection.

Did you do just a straight pull out without informing the OS that you wanted to disconnect the drive?
0
 
LVL 35

Accepted Solution

by:
Dan Craciun earned 125 total points
ID: 39957075
You can click on the "Safely remove hardware" icon next to the clock. This will force the cache to be written to the external device.

HTH,
Dan
0
 

Author Comment

by:Silas2
ID: 39957089
Oh, that's what the safely remove does, it clears the cache! I always wondered what the point was.
So with USB HDD's it's (the OS) really working from a local drive and caching loads of stuff onto that.
0
 
LVL 44

Expert Comment

by:Darr247
ID: 39957094
You can also optimize the drive for data safety instead of speed, but you have to do that on every computer you plug it into. Since this question's already closed, I'll let you figure out how to do that on your own.
0

Featured Post

Creating Instructional Tutorials  

For Any Use & On Any Platform

Contextual Guidance at the moment of need helps your employees/users adopt software o& achieve even the most complex tasks instantly. Boost knowledge retention, software adoption & employee engagement with easy solution.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Great sound, comfort and fit, excellent build quality, versatility, compatibility. These are just some of the many reasons for choosing a headset from Sennheiser.
A clone is a duplicate copy. Sheep have been cloned and maybe someday even people will be cloned, but disk cloning (performed by the hard drive cloning software) is a vital tool used to manage and protect data. Let’s look at what hard drive cloning …
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question