Linked by Thom Holwerda on Fri 1st Feb 2008 20:52 UTC, submitted by irbis
"Ext4, being the successor to ext3, may well be the filesystem many of us are using a few years from now. Things have been relatively quiet on that front - at least, outside of the relevant mailing lists - but the ext4 developers have not been idle. Some of their work has now come to the surface with Ted Ts'o's posting of the ext4 merge plans for 2.6.25."
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Member since:
2006-02-15
Then what's the point of having different filesystems? If space is one big pool shared by every filesystem, we just put everything under one big "/" and the effect is the same.
I'm not sure what you mean here, but well... A pool allows one to combine all the physical storage devices to a single blob of space which you can either use as a single mount point (f.ex. "/") or create several mount points in. The more hdds your machine has the more useful a pooled model actually is. LVM2 is a pooled model, ZFS is, and there's several others. They just differ in details, like f.ex. LVM2 allows you to combine all physical devices to one pool (or several pools if you so desire) and then partition that as you would one really big physical device. ZFS acts mostly the same but you don't partition it. You _can_ reserve space for your mount points if you wish, but you don't need to. In the latter case all the available space in the pool is dynamically shared. These features are not that important for home use but in file servers and such they are very important.