Subject: Re: Big issues with the T5 From: Ben Combee <[EMAIL PROTECTED]> Date: Thu, 11 Nov 2004 09:17:29 -0600
My understanding is that when the DBs are written to the NAND flash, they are written in a sparse-form where individual records are padded out to larger sizes to make it easier for individual records to be pulled off NAND by the cache. This would mean that a DB made of small records would take up considerable more storage space than a DB using larger records.
This whole caching discussion brings up another issue
I presume the OS only writes 'dirty' records back from the cache, which means that we need to make sure the 'dirty' flag needs to be set so the OS knows the record has changed.
Could you confirm this? If so, people who are modifying records without setting the 'dirty' bit could see their data silently disappear.
Or are all records written back from flash even if there is no indication the record changed.
Roger Stringer Marietta Systems, Inc. (www.rf-tp.com)
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