On 09/14/2006 12:02 PM, Andreas Winkelmann wrote:
> Am Thursday 14 September 2006 07:56 schrieb Warren Howard:
>
>
>> Hi,
>>
>> I've noticed that the size of the folders on disk can be much larger
>> than the size reported by the mail client and I'm wondering why.
>>
>> I'm using Cyrus-imapd 2.2.12 and the mail client is Squirrelmail 1.4.8
>> with the 1.5 version of the Folder Sizes plug-in.
>>
>> In Squirrelmail I can use the Folder Sizes plug-in to show that I have a
>> folder with a "count" of 17120 and a size of 68 MB. The folder is a
>> shared folder that goes by the name "Postfix users". On the mail server
>> the corresponding disk location (to the best of my knowledge) for this
>> folder is "/var/spool/imap/p/Internet\ Mailing\ Lists/Postfix\ users/".
>>
>> This directory has 17123 files in it, exactly 17120 (the count reported
>> by the Folder Sizes plug-in) plus three additional files cyrus.cache,
>> cyrus.header and cyrus.index. The size of this directory with the three
>> additional "cyrus" files is 120 MB - almost twice the size reported by
>> the Folder Sizes plug-in for Squirrelmail. Now cyrus.cache is 24 MB and
>> cyrus.index is 1 MB (cyrus.header is tiny 165 bytes), subtracting these
>> leaves me with mail message files that add up to 95 MB still 27 MB
>> larger than what is reported by the Folder Sizes plug-in.
>>
>> I also checked the size of the "Postfix users" using cyradm (in case the
>> Folder Sizes plug-in was wrong).
>>
>> localhost> info 'Internet Mailing Lists/Postfix users'
>> {Internet Mailing Lists/Postfix users}:
>> lastupdate: 14-Sep-2006 10:35:00 +0530
>> partition: default
>> size: 72033301
>>
>> so why does cyradm and the Folder Sizes plug-in report a size of 68 MB
>> where if I go and check on disk I see the sum of the message files on
>> disk is closer to 95 MB?
>>
>
> Please use:
>
> # du -bs --exclude="cyrus.*" /path/to/folder
>
>
Sure,
# du -bs --exclude="cyrus.*" /var/spool/imap/p/Internet\ Mailing\
Lists/Postfix\ users/
72457932 /var/spool/imap/p/Internet Mailing Lists/Postfix users/
Normally I use du with the -sh options
du -sh --exclude="cyrus.*" /var/spool/imap/p/Internet\ Mailing\
Lists/Postfix\ users/
95M /var/spool/imap/p/Internet Mailing Lists/Postfix users/
That's a big difference in the reported size! I've got no idea why that
might be, and I guess it's now getting a bit off topic for this least,
but thanks for the tip!
>> Is it a file system thing? I'm using reiserfs with the following fstab
>> options
>>
>> /dev/system/var /var reiserfs notail,noatime 0 0
>>
>> I'm worried that "notail" and lots of small message files is chewing up
>> disk space could it be the case?
>>
>
>
----
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