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Old 05-09-2007, 08:20 AM   #1
amitabhm
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disk space lost in mke2fs


What percentage of disk space is lost when we create ext3 filesystem with "mke2fs -j" for making journal and superuser space etc.
I need to automate the filesystem creation process for every new server for installing database which has specific size reqirements for all the partitions. So to be on safe side , i need to add that lost percentage of disk space while creating the RAID.
 
Old 05-09-2007, 08:41 AM   #2
bigrigdriver
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See the man page for mke2fs. For the -J option, you can specify the filespace to allocate for the journal (minimum 1024 blocks), See also -m (space reserved for the super-user defaults to 5%, but can be changed).

Note: that's -J (uppercase) as opposed to -j (lowercase).
 
Old 05-10-2007, 12:39 AM   #3
amitabhm
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Quote:
Originally Posted by bigrigdriver
See the man page for mke2fs. For the -J option, you can specify the filespace to allocate for the journal (minimum 1024 blocks), See also -m (space reserved for the super-user defaults to 5%, but can be changed).

Note: that's -J (uppercase) as opposed to -j (lowercase).
Thanks for your help.
Ok but if we don't specify anything , in that case 5% would be taken up for super-user and what is the default % taken up for journal?
 
  


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