On Thu, 2 Dec 2004, Jules Agee wrote:

Date: Thu, 02 Dec 2004 10:11:21 -0800
From: Jules Agee <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: best filesystem for imap server

David Lang wrote:
also note that if you are useing IDE drives you have no way of really knowing when the data has hit the platter (as opposed to just being in the buffer of the drive) as many of the drives will lie to you and tell you the write is complete once it hits the buffers.

I think they use capacitors that will hold enough charge to allow flushing the buffers to disk when there's a power loss.

they used to, but nowdays when the bugger is 8M (or larger), potentially with many seeks they don't have any capacitors large enough to hold that much power (disassemble a failed drive sometime and try to find any significant capacitors in it)


David Lang

--
Jules Agee
System Administrator
Pacific Coast Feather Co.
[EMAIL PROTECTED]      x284
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