[CentOS] EXT4 mount issue
Miguel Medalha
miguelmedalha at sapo.ptMon Oct 4 20:11:43 UTC 2010
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Can you give us the output of "tune4fs -l /dev/sdb" ? Does it show " has_journal" under "Filesystem features"? If it doesn't, you can input the following: tune4fs -o journal_data The option "journal_data" fits the case in which you don't care about the fastest speed but you put your focus on data integrity instead. By the way, if you only used the defaults when creating the ext4 filesystems, I am afraid that you didn't use the ext4 specific features that give it a real advantage over ext3. Some of them cannot be configured latter, they have to be specified when you create the filesystem.
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