Re: Block_Size on NTFS

postgresqlgeneral(dot)domain(dot)thewild_codata(at)spamgourmet(dot)com wrote:
> Hi all !
>
> Reading through the list of settings returned by "SHOW ALL", I noticed
> the "block_size" variable, which defaults to 8192.
>
> Running on Windows Server, my data directory is on an NTFS partition.
> Running CHKDSK on this partition tells me that there are "4096 bytes in
> each allocation unit."
>
> Are these allocation units the same as the "block_size", or does this
> only have to do with disk geometry ?
> If they are the same, is it important that they match ?

It is not necessary they match. It just means that Postgres extends
files in 8k chunks while your file system extends them in 4k chunks.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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