Linux File Systems: Ext2 vs Ext3 vs Ext4(thegeekstuff.com)
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Linux File Systems: Ext2 vs Ext3 vs Ext4
http://www.thegeekstuff.com/2011/05/ext2-ext3-ext4/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TheGeekStuff+%28The+Geek+Stuff%29&utm_content=Google+Reader
4 comments
Linkbait rubbish. Lists that look like they were copied together from various sources with no attribution. And then some linux shell commands.
Data is plainly wrong. Ext[234] don't support file system over 16TB. This stems from the limit of 32bit addressing * 4kb per block/cluster.
* note : I am aware of ability on certain hardware to run 8kb blocks, but this is non standard, not recommended, unsupported, and recovery tools will have problems.
* note : I am aware of efforts to get ext4 larger addressing (be it 48 or 64bit addressing), but currently this is unfinished, tools have problems, and no way to migrate from 32bit addressing to them.
* note : I am aware of ability on certain hardware to run 8kb blocks, but this is non standard, not recommended, unsupported, and recovery tools will have problems.
* note : I am aware of efforts to get ext4 larger addressing (be it 48 or 64bit addressing), but currently this is unfinished, tools have problems, and no way to migrate from 32bit addressing to them.
in my experiences, xfs is still faster than ext4.
in particular, if you are appending to a file.
especially with ext4, consider calling fallocate() to preallocate the size of the file you are appending to and keeping track of the offset yourself, i've seen that help performance immensely.
in particular, if you are appending to a file.
especially with ext4, consider calling fallocate() to preallocate the size of the file you are appending to and keeping track of the offset yourself, i've seen that help performance immensely.
Is there something like explore2fs for ext3 and ext4 so that you can access it while in windoze?
you mean http://www.fs-driver.org/ ?
ext3,ext4 are backwards compatible to ext2 (you lose journaling and some other nice features as you roll back).
When you revert to ext3/4 you usually end up having run a checkfs on boot though.
When you revert to ext3/4 you usually end up having run a checkfs on boot though.