XFS Beta 76
Motor writes: "Things have been a bit quiet on the XFS front over the last few months, but a beta is finally here." They've got a document to to read before installing, as well as some installation notes on the site. It looks like it's a patch for 2.4.0-test5 kernel, and you can also get it as RPMs, or ProPack.
How does this filesystem compare to ReiserFS (Score:1)
Re:Yay!!! (Score:1)
I'm interested to some extent in XFS because, IIRC, it was optimized for insanely large files (like captured video streams). However, Reiserfs is already here today to serve all your journaling needs.
Head down to http://www.devlinux.com/projects/reis erf s/ [devlinux.com] and take a look. Its already included by default in the newer SuSE distributions.
Offers nothing over ReiserFS (Score:1)
If you wan't to play with development FSes, then please give reiserfs on 2.4 a spin.
Re:How stable is this? (Score:1)
Re:compiler problems but yeah SGI DRT (Score:1)
XFS is a type 83 partition?!?! (Score:1)
Re:RTFM (Score:1)
Default blocksize on IRIX is 4K.
Input requested from
Does the Beta linux driver work with very large IRIX created XFS file systems.
Answer apears to be no.
Thanks
Re:64bit? you mean it will work on alpha procs???? (Score:1)
Re:Maximum file size (slightly OT) (Score:2)
With Redhat 7.0 - this problem is history - so you can use kernel 2.2 and create huge files (I think up to 2 terabytes)
Re:Offers nothing over ReiserFS (Score:2)
UPDATE: Starting kernel 2.2.18pre9 - there is the NFS V3 - so people should start thinking about migrate from NFS V2 to V3...
Re:64bit? you mean it will work on alpha procs???? (Score:1)
In the old days however, Tru64 would only work on Digital Mobos, not on alphaPCs.
On alphapcs, only NT and linux would work. I wonder if that's still the case.
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64bit? you mean it will work on alpha procs???? (Score:2)
BUT! It's a 64bit machine... and what I'm reading about XFS sounds interesting. At least I could turn it into a half decent file server.
Anybody knows how stable 2.4.0pre is on the alpha? what about XFS? and what about how optimised GCC is become for the 21x64 processors?
Has compaq got their own journaling fs and a NIX system that works on alphaPC platforms?
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Re:64bit? you mean it will work on alpha procs???? (Score:2)
I don't know about that specific platform you have but Tru64 UNIX (formerly Digital UNIX I believe) is available and has a journaling filesystem. I'm not sure it'd be affordable for home use though.
Re:Maximum file size (slightly OT) (Score:1)
I know for sure current suse's ship with it, and probably redhat does the same.
Re:Yay!!! (Score:2)
Woah there! Do note that although it's great progress for Linux, XFS for Linux is *still* in Beta. I gather IBM's JFS is coming along too, so the race is on.
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Re:Yay!!! (Score:1)
Re:Reiser stabilty (Score:1)
Re:XFS is a type 83 partition?!?! (Score:1)
-adnans
I upgraded to ext3 yesterday (Score:2)
The laptop now goes through a stop-without-proper-umount and reboot without having to check the filesystems again. I had to change the flags that "lilo" tells the kernel, and had to add flags in /etc/fstab, and had to boot with special flags ("rw") once to create the journal on the root filesystem.
Bruce
JFS is nice, but I'm concerned... (Score:2)
Are they only porting the XFS and none of the LVM support? My memory may be slipping, but I don't recall any mention of LVM (for or against porting to Linux) in any of their online documentation (except for some manpages, which are taken from IRIX)..
XFS without LVM? Disappointing...
Your Working Boy,
Re:Compiler version? (Score:1)
Re:XFS for FreeBSD? (Score:2)
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Re:Compiler version? (Score:1)
Compiler version? (Score:3)
Does this mean that gcc 2.9 is officially supported by Linus and co to compile 2.4, or is this just required for XFS?
Re:propack (Score:2)
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Re:XFS is a type 83 partition?!?! (Score:2)
And technically, "83" is a "Linux Native" partition, not ext2, so perhaps it's not so bad.
Just keep it in mind when you use a filesystem tool...
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Re:64bit? you mean it will work on alpha procs???? (Score:2)
I would pay good money to see AdvFS for Linux. I even wrote some code for a work-alike, but got distracted by other things and had to set it aside.
Re:Compatible w. IRIX XFS? Stability??? (Score:2)
I needed XFS support in my Linux box to read a bunch of TGA files from a 18 gigs scsi drive formatted in XFS on a SGI box. Very often my machine crashed and it took me days to get those dawn files. You should wait until the stable version is ready.
Re:Software RAID? (Score:1)
Actually, the RAID code has been fixed in 2.2.<late> and 2.4.0pre<mumble>, but I haven't had a chance to look at it yet. I suspect supporting XFS will still take some work. We'll get there.
Re:Software RAID? (Score:3)
XFS works with RAID0. RAID1/5 is a bit more tricky, but we'll get to it.
Re:JFS is nice, but I'm concerned... (Score:4)
You can use XFS on Linux with LVM and MD RAID0. RAID1 and RAID5 might cause problems, because both they and XFS do nasty VM tricks. Since we're determined to go the kiobuf route in terms of I/O, that's were our efforts are concentrated. I'm working on adding kiobuf support to LVM as I type this. MD is next on my list.
Finally, the man pages have been updated for Linux. They're just not on the web page yet. We weren't supposed to release the beta until Friday, but we accidentally published the beta release web page and it was on Linuxtoday/Slashdot in no time. We're updating the docs as fast as we can. Hang in there.
Re:Compiler version? (Score:5)
We had a lot of issues when using gcc 2.95.2, and we didn't want to fight broken compilers during the beta testing period. Consequently, we've
set a fairly restrictive set of prerequisites.
Re:compiler problems but yeah SGI DRT (Score:5)
We're working on replacing the current block I/O subsystem in Linux (aimed at 2.5, but will exist in the XFS tree in 2.4). Currently, Linux does block I/O in entities known as buffer_heads, which carry 512 byte payloads. The new scheme is based upon Stephen Tweedie's kiobuf model, and will support big (SCSI supports up to 16 MB/req) I/Os. XFS was primarily designed for big sustained I/Os and once we're done with the kiobuf support we'll start profiling the code and push it to the limits.
Regarding ports to other architectures: My Alpha here at the office is running XFS, but I haven't committed the changes yet. I ported XFS to it for fun a month ago but never got around to committing the changes. I'll do that at some point. And possibly look at SPARC.
But then again. This is Open Source. Feel free to hack on it and send us patches!
XFS for FreeBSD? (Score:1)
Sorry, I'm not trying to be a troll or anything, I just happen to like FreeBSD a bit better...
Re:XFS for FreeBSD? (Score:2)
"I want to use software that doesn't suck." - ESR
"All software that isn't free sucks." - RMS
maybe by 2.4 (Score:2)
Currently there seems like a lot of limitation on what software you need and all. glibc 2.1.3, kernel 2.4.test-5, etc.
It is good to see that SGI is still working on this after such a long time of silence. I guess working in the Internet world I kinda expect projects to move at internet time. After all that is what kind of pressures I have to work under. But atlas I am not writing filesystems and drivers.
I don't want a lot, I just want it all!
Flame away, I have a hose!
compiler problems but yeah SGI DRT (Score:2)
SGI have DRT (Done the Right Thing) so THANK YOU SGI
XFS is compaterble with the IRIX file system but the implementation is differant in parts
I wonder how fast this is compared to others, ext2 blew alot of FS out of the water in terms of speed
anyone got benchmarks of XFS on IRIX and on Linux ?
Well done for geting the PPC port working but what about ARM/MIPS ?
I am compileing it on redhat 7 as I type so will try it out
yes you can compile linux with 2.95.2 but there where problems I would stick to EGCS at the moment and thats what SGI recomend but redhat want 2.96 to work and they are trying to get everything working for the upcoming 3.0
have fun
john jones
(a deltic so please dont moan about spelling but the content)
Beta Caveats (Score:3)
Size and Memory Limitations 2 Terabyte filesystem limitation
Currently XFS is limited to filesystem smaller that 2 terabytes. This is due to limitations in the Linux block device I/O layers.
The XFS team is working with Linux developers to improve the Linux I/O layers. The improvements will include the support neccesary to exceed 2 Tbyte filesystems.
4 Gbyte memory limitation
Well, those "caveats" won't prevent my servers running for a long time!
Hrm (Score:2)
Cheers,
levine
Re:Yay!!! (Score:2)
ext3 is available as kernel patches from ftp://ftp.uk.linux.org/pub/linux/sc t/f s/jfs/ [linux.org]; there's still a bunch of issues to be aware of.
Pro: very nice transition from existing ext2 filesystems and back again. Does journaling so bye-bye long fsck times.
Con: Does data+metadata journaling so write performance is about 1/2 ext2. Must still be classed as experimental, I wouldn't yet go production with ext3 - reiser seems to be stable enoug to use on production systems right now.
If you're interested in stuff increasing the availability of your system (journaling filesystems, hardware monitoring, cluster configurations..) the site to visit is http://www.linux-ha.org [linux-ha.org], it's got a nice colection of links to the relevant projects.
Re:Yay!!! (Score:2)
How stable is this? (Score:1)
I Really wanna try it, but I don't have a box i can run it on where eat the disk(tm) can be tolerated.
If anybody has any info on how well it works please share..
BullSheeee... (Score:3)
HOWEVER.....
XFS is totaly designed as a high performance FS. It is fully 64bit (on 64 bit platforms, not a concern on x86), it is growable (very slick), and has basically everything you'd expect from a high-end "commercial-grade" journaling FS. Why? Cause it is. It's the Journaling FS that SGI designed and uses in all of their completely badass servers.
As for stability, XFS is pretty good now. There are a few issues. I had problems with XFS+Athlon+Ultra/ATA66, but for highend SMP machines with SCSI, XFS can't be beat!
Also, keep an eye out for IBM's JFS in the future.
Hobbyist licence available (Score:1)
Tru64 has a hobbyist license for $99.
Check out http://www.unix.digital.com/noncommercial-unix/ [digital.com]
Re:Compiler version? (Score:2)
Re:XFS for FreeBSD? (Score:1)
Re:compiler problems but yeah SGI DRT (Score:1)
Hmmm, so a deltic must be one who writes postcards... so his spelling would be bad, because he's not used to being able to write full sentences... a holdover from the telegram days...
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Re:Maximum file size (slightly OT) (Score:1)
Personally (Score:2)
But, I know of servers (Alphas) that already exceed these limits. How am I supposed to convince these servers owners to switch OSes (not that I'm trying anyway)?
Devil Ducky
Re:Beta Caveats (Score:1)
on 64 bit operating systems like an Alpha. For example Wildfire.
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www.alphalinux.org
Re:Compiler version? (Score:1)
Per Alan Cox this compiler is OK for kernel.
JFS Flavors for Linux (Score:1)
ext3 (which was pretty good but only available for the 2.2.17pre series of kernels), and finially reiserfs (which 100% totally rocks). I'm hoping that reiser
will become the defacto standard journaling filesystem for linux and actually be included in the kernel. It's much faster and allows you to do things that you
couldn't dream of doing with ext2 (i.e., creating 100,000 files in 30 seconds!). It also allows you to choose the hashing algorithm used to store files based on
your filesystem needs (squid caches, giant files, many small files etc...). My only gripe about all the JFS's for linux is that none of them seem to support
quotas yet. Anybody know why this is an issue? I'm not saying that it's not great news to have another option available with XFS though. SGI has a superb
team of engineers, and I'm sure that XFS will be quite useful and dependable when it's done.
Stackable block devices? (Score:1)
Re:Software RAID? (Score:1)
Re:Offers nothing over ReiserFS (Score:1)
What about NFS exports and ReiserFS on very large disk arrays? We have a raidzone (~500GB Raid 5 Linux box using ReiserFS) in house, and the NFS performance is pitiful (not just because we are limited to NFSv2 exports due to kernel 2.2.16)
-Jeremy
Re:Offers nothing over ReiserFS (Score:1)
I am aware that NFS v3 will be in kernel 2.2.18
What about reiserfs and NFS interactions though? I have read that there is some "fighting" going on there...
Anyone else have performance issues in that combination?
Re:Apples to oranges. (Score:1)
I'm just talking from personal experience. I have a system that needs to serve gigabytes of data (very large files). Right now its performance needs to be improved. I'm interested in moving this product to 2.4, after it stablizes. Right now I'm stuck with using kernel 2.2.x Why? This hardware must be stable _and_ usable to my users. Having to wait seconds on a 'ls' on a NFS mounted reiserfs partition on a 500 GB raid is not my idea of a good time.
I'm all for having a high performance journalling filesystem, and I don't care which one it is. I'd be more than happy to continue using reiserfs, since I believe it to be the most stable fs for this task right now. What I don't like is, again, the poor 2.2.x NFS performance.
-Jeremy
Software RAID? (Score:2)
I keep hearing "kernel people" say that "Journaling Filesystems don't work with Linux' software RAID" but I've been using ReiserFS on a 60GB RAID0 device at home for several months with no problems at all...
For those of us on a budget (like 90% of us are...) and have to use cheap IDE hardware with software RAID, but want the reliability of a journaled filesystem, this is an important question!
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Re:BullSheeee... (Score:1)
Re:RTFM (Score:1)
(Shame about that 2 Terabyte size limit, though. I guess I'm gonna have to go buy myself a couple dozen extra hard disks. (that and a RAID controller). :-)
Re:XFS for FreeBSD? (Score:1)
propack (Score:1)
i looked at xfs web page and couldnt find any info on it.
journaling FS (Score:5)
it explains different features and concepts related to the 4 different journaling filesystems. XFS, JFS, Ext3 and ReiserFS.
Re:Yay!!! (Score:1)
Yay!!! (Score:1)
Now if we could only communicate Linux's amazing uptime without being anecdotal.
Re:compiler problems but yeah SGI DRT (Score:1)
Re:propack (Score:2)
Re:JFS is nice, but I'm concerned... (Score:1)
from the FAQ [sgi.com]:
Q: Can I run XFS on top of LVM? /proc/partitions. Also for using XFS on LVM you should not enable the kiobuf option in the kernel XFS compile options. You may get a patch (created by William L Jones) to start from at
Yes you can but you need to use a patch for LVM because the XFS kernel contains stephen tweedies sard patches which change the format of
http://innominate.org/~graichen/projects/xfs/lvm .patch
See the head of it for details and a list of contributors.
RTFM (Score:2)
For the current release of XFS, the filesystem block size is limited to the size of a memory page. On a x86 architecture that size is 4 Kbytes.
Note that files systems created on an IRIX/MIPS platform must have been created with a 4 Kbyte block size in order to be mounted on a ia32 Linux system. File systems not created with a 4k block will fail to mount with an error indicating the mis-match.
Exponential data growth (Score:1)
You might not need a 2TByte file system, but there are industries where data is getting up into the realm of the PetaByte.
Re:Software RAID? (Score:1)
Re:How stable is this? (Score:1)
The performance of most UNIX filesystems significantly degrades as the number of entries per directory grows - Not with XFS. You could have a directory with thousands of entries and due to the B-trees table structure the lookup and response time is not much different if you only had a few entries.
On IRIX XFS is capable of handling files as large as a million terabytes. XFS is a 64bit file system and offers near raw i/o performance. XFS will bring linux the filesystem stability it needs to be considered an enterprise OS. While IRIX can boast these numbers it will be a little while before linux can. On the other hand, I am happy with ReiserFS on my home desktop. There are people who use ReiserFS on their servers. The enterprise will be very happy with XFS on Linux.
Re:Yay!!! (Score:1)
Maximum file size (slightly OT) (Score:1)
HH
Re:Compiler version? (Score:1)
Besides, compiler requirements are different for different architectures. While it's not a good idea to use anything older than gcc-2.95.2 for most platforms, users of i386 tend to be more comservative because some i386 code was written when gcc-2.95 didn't exist at all, so that validity of some assumption is yet to be tested. I'm using gcc-2.95.2 on all platforms, but stability is not a big concern for me.
Re:Posted (Score:1)