You're right, but for EXT 2/3 they're not part of the mainstream kernel, then need to be added as patches. I believe this may have changed now so that ACL/EA are included with the kernel for EXT 2/3, but they used to be a seperate piece maintained independantly. Without a kernel patch, they were unavailable. They also needed updates to some file system utilities, for full support. I've seen warnings (for example) that file moves with Konqi will kill the ACLs. Only STAR backs them up AFAIK.
I've done some looking, and ACLs are useable on ReiserFS, Ext2/3, JFS, and XFS. I'm still not sure about Quotas though. I'm guessing the situation would be similar, but I don't know that for sure. I was mostly just curious to know if anyone else knew. I'll look into the quotas tomorrow... Kev. ----- Original Message ----- From: "Shawn Grover" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, August 19, 2003 12:03 PM Subject: RE: (clug-talk) Ext3 VS ReiserFS ? > I'm far from an expert on these topics, but I believe Quotas and ACLs are > implmented in the kernel (or as modules), and don't really depend on the > type of file system. I've seen references to compiling the kernel with ACL > support, and the sub options did not have any reference to file type... > > Perhaps someone more knowledgeable about Quotas and ACLs can respond? > > Shawn > > -----Original Message----- > From: Kevin Anderson [mailto:[EMAIL PROTECTED] > Sent: Tuesday, August 19, 2003 11:16 AM > To: [EMAIL PROTECTED] > Subject: Re: (clug-talk) Ext3 VS ReiserFS ? > > > Does Reiser support Quotas and ACLs? > > Kev. > > > > ----- Original Message ----- > From: "Shawn" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, August 18, 2003 11:11 PM > Subject: Re: (clug-talk) Ext3 VS ReiserFS ? > > > > The excerpt below is in the Gentoo install guide > > (http://www.gentoo.org/doc/en/gentoo-x86-install.xml#doc_chap6), but it > > applies to any system... > > > > ---------------------- > > Creating filesystems > > > > Now that the partitions have been created, it's time to set up filesystems > on > > the boot and root partitions so that they can be mounted and used to store > > data. We will also configure the swap partition to serve as swap storage. > > > > Gentoo Linux supports a variety of different types of filesystems; each > type > > has its strengths and weaknesses and its own set of performance > > characteristics. Currently, we support the creation of ext2, ext3, XFS, > JFS > > and ReiserFS filesystems. > > > > ext2 is the tried and true Linux filesystem but doesn't have metadata > > journaling, which means that routine ext2 filesystem checks at startup > time > > can be quite time-consuming. There is now quite a selection of > > newer-generation journaled filesystems that can be checked for consistency > > very quickly and are thus generally preferred over their non-journaled > > counterparts. Journaled filesystems prevent long delays when you boot your > > system and your filesystem happens to be in an inconsistent state. > > > > ext3 is the journaled version of the ext2 filesystem, providing metadata > > journaling for fast recovery in addition to other enhanced journaling > modes > > like full data and ordered data journaling. ext3 is a very good and > reliable > > filesystem. It offers generally decent performance under most conditions. > > Because it does not extensively employ the use of "trees" in its internal > > design, it doesn't scale very well, meaning that it is not an ideal choice > > for very large filesystems, or situations where you will be handling very > > large files or large quantities of files in a single directory. But when > used > > within its design parameters, ext3 is an excellent filesystem. > > > > ReiserFS is a B*-tree based filesystem that has very good overall > performance > > and greatly outperforms both ext2 and ext3 when dealing with small files > > (files less than 4k), often by a factor of 10x-15x. ReiserFS also scales > > extremely well and has metadata journaling. As of kernel 2.4.18+, ReiserFS > is > > now rock-solid and highly recommended for use both as a general-purpose > > filesystem and for extreme cases such as the creation of large > filesystems, > > the use of many small files, very large files and directories containing > tens > > of thousands of files. ReiserFS is the filesystem we recommend by default > for > > all non-boot partitions. > > > > XFS is a filesystem with metadata journaling that is fully supported under > > Gentoo Linux's xfs-sources kernel. It comes with a robust feature-set and > is > > optimized for scalability. We only recommend using this filesystem on > Linux > > systems with high-end SCSI and/or fibre channel storage and a > uninterruptible > > power supply. Because XFS aggressively caches in-transit data in RAM, > > improperly designed programs (those that don't take proper precautions > when > > writing files to disk and there are quite a few of them) can lose a good > deal > > of data if the system goes down unexpectedly. > > > > JFS is IBM's high-performance journaling filesystem. It has recently > become > > production-ready and there hasn't been a sufficient track record to > comment > > positively nor negatively on its general stability at this point. > > > > If you're looking for the most rugged journaling filesystem, use ext3. If > > you're looking for a good general-purpose high-performance filesystem with > > journaling support, use ReiserFS; both ext3 and ReiserFS are mature, > refined > > and recommended for general use. > > ---------------------- > > > > The best answer I can give you is "it depends on what you're doing". I > > personally use Ext3 for my /boot partition, and reiserfs for my root > > partition (I don't have need to break up into other partitions.... > yet...). > > If your partition will host lots of smaller files that may be critical, > the > > Reiser is probably the better choice as it has better performance for > small > > files, and is a journalized system to (help) ensure file integrity. > > > > Hope this helps. > > > > Shawn > > > > On August 18, 2003 07:23 pm, Mathieu Jobin wrote: > > > How to choose between thoose file system ? > > > > > > Mathieu > > > > > > > >
