On Saturday 27 September 2008 12:17, Hylton Conacher (ZR1HPC) wrote:
Hi,
I recently setup a couple of partitions with ext3 with a journal mode of journal ie not the default of ordered. I loaded OpenSuSE 11.0 onto it and have done a fair bit of configuring but would like to change the journaling mode to the default of ordered.
Using my friend Google I found:
http://en.opensuse.org/Speeding_up_Ext3
but am confused by what is under 'Enabling Writeback Mode' and which command to use as to my knowlege I do not have writeback mode but journal mode.
I would assume I use the journaled command but would like to make sure.
I'm not entirely sure what you're asking but, the acceptable values of the "-o" option are given in the tune2fs manual page and are: journal_data When the filesystem is mounted with journalling enabled, all data (not just metadata) is committed into the journal prior to being written into the main filesystem. journal_data_ordered When the filesystem is mounted with journalling enabled, all data is forced directly out to the main file system prior to its metadata being committed to the journal. journal_data_writeback When the filesystem is mounted with journalling enabled, data may be written into the main filesys- tem after its metadata has been committed to the journal. This may increase throughput, however, it may allow old data to appear in files after a crash and journal recovery. So if you're currently in the fully journalled mode (journal_data) and and to revert to the openSUSE default, you'd include this: -o journal_data_ordered in your tune2fs invocation. And if you want the fastest but most vulnerable mode, it would be: -o journal_data_writeback
Appreciated Hylton
By the way, would you mind asking your friend not to spy on us? Thanks. Randall Schulz -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org