[Gllug] ext3 options

salsaman salsaman at xs4all.nl
Tue Jan 17 22:29:29 UTC 2006


salsaman wrote:

> Emon wrote:
>
>> Hi all
>>
>> I made a 11GB partition on my HDD (for storing stuffs like
>> software,songs etc.) with ""cfdisk" and then did "mkfs.ext3" &
>> checked the size with "df -m"
>>
>> It displays the size to be "10321".
>>
>> My first question is where has the (approximately) 900MB gone??
>>
>> Also I found this in "man mke2fs"
>>
>> *****************
>> -m reserved-blocks-percentage
>> Specify  the percentage of the filesystem blocks reserved for
>> the super-user.  This avoids fragmentation, and allows
>> root-owned daemons, such as syslogd(8), to continue to function
>> correctly  after  non-privileged  processes are prevented from
>> writing to the filesystem.  The default percentage is 5%.
>> *****************
>>
>> Since I don't understand the function of "syslogd" (tried
>> reading the man-pages, but that didn't help either) I am asking
>> you guys, do I actually need to keep 5% (500MB approximately for
>> 11GB) of reserved-blocks??
>>
>> Thanks
>> Emon
>>  
>
syslogd is the kernel logging demon. It writes to files like 
/var/log/messages.

An example of the reserved space use would be after you issue a 
"shutdown" command. All other processes are terminated, but syslog 
continues logging the shutdown process.

Regards,
Salsaman.
http://lives.sourceforge.net

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