Building External Hard Drive (Time Crunch)

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Discussion Overview

The discussion revolves around setting up an external hard drive, specifically focusing on jumper settings for a Western Digital hard drive and concerns about data integrity during travel, particularly through airport security. It includes technical considerations, user experiences, and practical advice related to external hard drive usage.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant inquires about the appropriate jumper setting for their hard drive, questioning whether to use cable select, master, or seek tech support.
  • Another participant suggests setting the jumper to master if it is the only drive on the IDE channel, while noting that cable select would make the drive inaccessible.
  • A different participant counters that cable select is necessary for Western Digital drives when they are the only drive on the channel, indicating a potential issue with the drive's configuration.
  • A participant shares their experience of removing the jumper shunt and successfully using the drive set to master without issues.
  • Concerns are raised about the need for a battery pack to maintain data integrity during air travel, with one participant expressing worry about unplugging the drive.
  • Another participant clarifies that hard drives do not have batteries that would affect data retention and suggests handling the drive carefully during airport security checks.
  • Further reassurance is provided that hard drives retain data even when unplugged, and that passing the drive through x-ray machines is generally safe.
  • A participant explains the non-volatile nature of hard drives, stating they do not require batteries to keep information intact.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of jumper settings, particularly regarding cable select versus master configurations. There is also a mix of opinions on the need for a battery pack and concerns about data loss during travel, indicating that the discussion remains unresolved on these points.

Contextual Notes

Participants reference specific behaviors of Western Digital drives and the implications of jumper settings, but there are no consensus definitions or clarifications on these technical aspects. The discussion also touches on practical considerations for traveling with external hard drives, which may vary based on individual experiences.

physicsCU
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Hey,

I bought a Western Digital hard drive to put into an enclosure. I have an HP pavilion zv5000 notebook.

I have no idea what jumper setting on the hard drive I should use. Should I leave it as cable select, move it to master, or call tech support?

The box from the enclosure says master. The hard drive's manual says if you are unsure, move it to master.

Opinions?
 
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If it is the only drive on the IDE channel (which is probably the case if you have only one drive) then you set the jumper to master. If it is the second drive, you would set it to slave.

Cable select will render the drive inaccessible.
 
No, cable select must be set if the drive is the only drive on the channel. This is some "bug", "thing", etc. that only Western Digital drives must have as far as I know.
 
Actually, I removed the jumper shunt, setting the drive to master and it works just fine.

Been using it all of today with no problems. Done all the normal testing, shut down, removing from power.

btw, how long does the battery in a hard drive last?
 
Hard drives don't have batteries (unless maybe a small, unaccessable battery used for keeping some info alive... except you'd expect those to be non-volatile)

If you have an external inclosure, its either taking power from a separate power cord or the USB cord that the external inclosure is connected with
 
I guess since I am taking it on a plane, I am worried about losing my data. Should I buy a battery pack or something to keep my data intact? I tried unplugging it today for a little while, about 10 minutes and didn't lose anything.

Or should i plug into my computer? Only problem there is that the computer is in a separate compartment. So the cord would be sticking out.

And should i leave the drive in my bag going through the x-ray machine at the airport?
 
Last edited:
The hard drive doesn't have a battery that will go out in under... a few years at the least. Just keep it unplugged and hand it to the attendant and ask for it to be hand-checked or something because your afraid hte detectors might do something to it. I highly doubt they would... but I am sure they would do a manual check instead.
 
Thanks for the answers!

Yes, I just need a battery to keep data intact, planning on sleeping/reading on the flight.

I will certainly pass the drive to a screener. Shouldn't be too busy on a Monday.

But as long as my data is intact, I am happy.
 
Don't worry about batteries. The hard drive in a desktop computer doesn't lose data when the computer is unplugged. The hard drive in your laptop doesn't lose data when it is unplugged -- even if you remove the laptop's battery. So your external hd will do just fine.

Also, don't worry if they put it through the xray machine. Laptops go through those machines all the time with no problem.
 
  • #10
Hard drives are non-volatile storage. They record information in patterns of the magnetic field on a ferromagnetic platter. They do not need any kind of battery to keep the information intact.

- Warren
 

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