Storage forum

General discussion

Hard Drives - 8MB buffer vs. 16MB buffer

by jngnyc / November 19, 2005 3:58 AM PST

Hi everyone, just want to thank everyone in advance for reading my post.

I'm considering buying a new hard drive and i have options of a hd with a 8 mb buffer and 16 mb buffer. The price difference isn't that large BUT if the 16 doesn't perform that much better than the 8, I'm gonna get the 8.

Can someone give me a quick and dirty regarding the differences in performance between these two options? If the performance difference is depenedent on components in my computer, please let me know what those dependencies are. Thanks

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The OS helps here immensely.
by R. Proffitt Forum moderator / November 19, 2005 4:30 AM PST

Let's say we have an OS with a better disk cache system. This renders this drive cache not so big a deal.


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Windows XP?
by jngnyc / November 19, 2005 11:30 AM PST

Does Windows XP have a good file system cache? Thanks for your help

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It can.
by R. Proffitt Forum moderator / November 19, 2005 11:44 AM PST
In reply to: Windows XP?

XP, Windows 2000, Linux all have pretty good disk cache systems. If I look at my system, it's 283 megabytes of disk cache which the difference of that 2, 8 or 16 MB on the disk drive would not make much difference. may have some benchmarks if you want to look further.

The RPMs seem to be what you can't skimp on.


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Check it?
by jngnyc / November 19, 2005 12:26 PM PST
In reply to: It can.

last thing i promise =). Any idea on how to check how much disk cache i have like you did? And i'm assuming the amount that you have 283, is a pretty good set up to not really need the 16mb cache from the HD. Thanks!!!

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In XP, it's in the Task Manager under Performance.
by R. Proffitt Forum moderator / November 19, 2005 12:32 PM PST
In reply to: Check it?

Look at the System Cache entry.



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Thanks again
by jngnyc / November 19, 2005 3:28 PM PST

Thanks so much for your help. I think i'm good with the 8MB buffer HD. Take it easy!

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