Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

question for computer gurus regarding hard drive cache

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » The DU Lounge Donate to DU
 
Barad Simith Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-06-04 04:25 AM
Original message
question for computer gurus regarding hard drive cache
Can anyone tell my why 8mb cache is better than 2mb? I know it must be better, but I guess what I'm getting at is this:

I'm replacing my secondary hard drive. The main drive is an 80 gig with 8 mb cache.

For the secondary, I can get another 80gb/8mb drive, or I can save $20 and get an 80 gig with only 2 mb cache.

I'm just going to use the secondary drive to mirror the saved files on my C drive in case it crashes.

So, is the extra 6 mb cache necessary? What does hard drive cache do?

I appreciate any help anyone might have.
Printer Friendly | Permalink |  | Top
mwar Donating Member (128 posts) Send PM | Profile | Ignore Sun Jun-06-04 04:36 AM
Response to Original message
1. speed
Edited on Sun Jun-06-04 04:44 AM by mwar
A cache is a memory buffer that can be accessed more quickly than getting the data directly to and from the drive. So on a write operation, for instance, the computer can quickly fill up the cache memory of the drive and go off to do other things, leaving the drive to do the work of writing the data from cache to the media. The bigger the cache, the more data can be buffered in this fashion. The net benefit is speeed on certain disk operations. If you are looking for increased performance spend the twenty bucks.
Printer Friendly | Permalink |  | Top
 
Barad Simith Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-07-04 01:23 AM
Response to Reply #1
4. thanks! (nt)
Printer Friendly | Permalink |  | Top
 
benburch Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-06-04 06:54 AM
Response to Original message
2. If it is purely a backup drive...
then the cache does not matter so much. If by "mirror", however, you mean live mirroring, then I'd buy the drive with the bigger cache. I'd also make sure that it had a high spindle speed.

You did not say how much you were spending on the drive, total, but here is a 80GB/8mb/7200 drive for $79; http://www.newegg.com/app/viewProductDesc.asp?descripti...

Printer Friendly | Permalink |  | Top
 
Barad Simith Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-07-04 01:23 AM
Response to Reply #2
3. yes, a backup drive
I guess I used 'mirror' incorrectly. When saving files, I save them to both drives, so I think of it as a 'mirror' because I do a daily properties-check on the saved folders of both drives, to make sure they're identical in size and number of files/folders.

Thanks for the link.
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Tue Sep 02nd 2014, 12:04 PM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » The DU Lounge Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC