Re: GEOM Gate.
Wilko Bulte wrote: On Tue, Oct 14, 2003 at 10:44:14PM +0200, Oldach, Helge wrote: From: Richard Tobin [mailto:[EMAIL PROTECTED] Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: Aaargh! It's the return of nd(4) from SunOS. Excuse me? # uname -a SunOS galaxy 4.1.4 18 sun4m Too new.. Yeah... Think Sun2 systems http://www.netbsd.org/Documentation/network/netboot/nd.html -- Terry ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Wed, Oct 15, 2003 at 12:28:12AM -0700, Terry Lambert wrote: Wilko Bulte wrote: On Tue, Oct 14, 2003 at 10:44:14PM +0200, Oldach, Helge wrote: From: Richard Tobin [mailto:[EMAIL PROTECTED] Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: Aaargh! It's the return of nd(4) from SunOS. Excuse me? # uname -a SunOS galaxy 4.1.4 18 sun4m Too new.. Yeah... Think Sun2 systems http://www.netbsd.org/Documentation/network/netboot/nd.html /me fondly remembers the hacked-up backplane in the Sun2/170 to allow it to use 7 1MB RAM cards.. -- | / o / /_ _ [EMAIL PROTECTED] |/|/ / / /( (_) Bulte ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
Yeah... Think Sun2 systems http://www.netbsd.org/Documentation/network/netboot/nd.html Though it wasn't just for booting in the old days. On a diskless workstation, your whole filesystem would be on nd. And it was a real mistake to mount a writable partition on two machines, but nothing stopped you doing it. -- Richard ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
GEOM Gate.
Hello hackers... Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: http://garage.freebsd.pl/geom_gate.README and presentation from WIP/BSDCon03 session: http://garage.freebsd.pl/GEOM_Gate.pdf After compliation (cd geom_gate; make; make install) you should run regression tests: # regression/runtests.sh If everything will went ok you can play with GEOM Gate and report any bugs. I've spend some time to made GEOM Gate force-remove-safe so using '-f' option with ggc(8) should be always safe. Ah! Four manual pages are added, so feel free to read them first (gg(4), geom_gate(4), ggc(8), ggd(8)) http://garage.freebsd.pl/geom_gate.tbz Enjoy! -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: Aaargh! It's the return of nd(4) from SunOS. (Sorry about that.) -- Richard ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: GEOM Gate.
From: Richard Tobin [mailto:[EMAIL PROTECTED] Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: Aaargh! It's the return of nd(4) from SunOS. Excuse me? # uname -a SunOS galaxy 4.1.4 18 sun4m # man nd No manual entry for nd. # Helge ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Tue, Oct 14, 2003 at 10:44:14PM +0200, Oldach, Helge wrote: From: Richard Tobin [mailto:[EMAIL PROTECTED] Ok, GEOM Gate is ready for testing. For those who don't know what it is, they can read README: Aaargh! It's the return of nd(4) from SunOS. Excuse me? # uname -a SunOS galaxy 4.1.4 18 sun4m Too new.. # man nd No manual entry for nd. # -- | / o / /_ _ [EMAIL PROTECTED] |/|/ / / /( (_) Bulte ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
GEOM Gate status.
Hello hackers... I've spend some time working on GEOM Gate, so... Cache was implemented, but only for reading (cache for write requests isn't good idea here, IMHO). Many workers can be used now. This will help to split requests. Requests are queued and always worker with minimal number of pending requests is choosen. Workers can be added at run-time with '-r' option. ggd(8) use now NFS-like exports file. Sample entries: 192.168.0.3 RD /dev/acd0 192.168.0.4 RW /test.img 192.168.0.5 RW /dev/ad0s1a I've also wrote some manual pages: - gg(4), - geom_gate(4) (exists, but isn't finished yet), - ggc(8), - ggd(8). There are few sysctls that could help in performace and memory consumption tuning and more to come. TODO. Errors handling needs more work. Maybe UDP (for now transport is done via TCP). Per-device sysctls created automatically. Regression tests. Performance benchmarks. GEOM Gate is avaliable at: http://garage.freebsd.pl/geom_gate.tbz http://garage.freebsd.pl/geom_gate.README See you all at BSDCon 2003!:) -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
In message [EMAIL PROTECTED], Dan Nelson writes: I think this just demonstrates that you should not run benchmarks with all your debugging flags enabled :) Most people will not be running production systems with WITNESS, and parts of the kernel that bog down under the heavy load of WITNESS may work just fine on a regular kernal config. To quote from src/UPDATING: ] NOTE TO PEOPLE WHO THINK THAT 5.0-CURRENT IS SLOW: ] FreeBSD 5.0-CURRENT has many debugging features turned on, in ] both the kernel and userland. These features attempt to detect ] incorrect use of system primitives, and encourage loud failure ] through extra sanity checking and fail stop semantics. They ] also substantially impact system performance. If you want to ] do performance measurement, benchmarking, and optimization, ] you'll want to turn them off. This includes various WITNESS- ] related kernel options, INVARIANTS, malloc debugging flags ] in userland, and various verbose features in the kernel. Many ] developers choose to disable these features on build machines ] to maximize performance. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
Attila Nagy wrote: Terry Lambert wrote: It works on firewire and it works on a dual port RAID array (as a separate box containing the RAID array). What does 'it' means? I guess it's not UFS, but the pure ability of sharing a device on a bus, connected to more than one adapters. The it was the subject of the previous sentence, which you diked out; that's how prepositional phrases work in English. 8-). In other words, multiple access to the same device from one or more SCSI controllers. SAN and NAS are also options, but of course, you still have to have an FS that can deal with it, and an external locking protocol. Right, we were talking about FreeBSD, which lacks such a filesystem :( I've said it before, and I'll say it again: porting GFS would be a really trivial amount of work, taking almost no creativity to do; the last time this subject came up and Sistina was offering to change their license, I ported all the user space utilities in under a day. I didn't finish off the whole FS port because I lacked the necessary disk drives and FreeBSD lacked the necessary controller driver for those disk drives, and the active maintainers claimed that they had a port in progress. These types of things are primarily busy-work and a way to spend money on hardware I'll likely never use in a production environment to end up with code under a license that prevents me from using it in a commercial product. That makes doing the work very uninteresting. -- Terry ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
In message [EMAIL PROTECTED], Pawel Jakub Dawidek writes : --X8oaj2qX3NXXvcHN Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 15, 2003 at 11:53:11AM -0400, Robert Watson wrote: + That said, I think the geom gate stuff looks very cool :-). You might be + able to run some interesting performance numbers comparing NFS and UFS + over a remote block device. Ok. After last geom gate optimizations I'm ready to show some tests. NFS read: 2539890 bytes/sec NFS write: 2668428 bytes/sec GG read file: 5791796 bytes/sec (file was exported) GG write file: 4071411 bytes/sec (file was exported) GG read device:4635277 bytes/sec (disk device was exported) GG write device: I wasn't able to test Please use /usr/src/tools/tools/ministat to do a proper statistical benchmark. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
Terry Lambert wrote: It works on firewire and it works on a dual port RAID array (as a separate box containing the RAID array). What does 'it' means? I guess it's not UFS, but the pure ability of sharing a device on a bus, connected to more than one adapters. SAN and NAS are also options, but of course, you still have to have an FS that can deal with it, and an external locking protocol. Right, we were talking about FreeBSD, which lacks such a filesystem :( -- Attila Nagy e-mail: [EMAIL PROTECTED] Free Software Network (FSN.HU) phone @work: +361 210 1415/127 ISOs: http://www.fsn.hu/?f=downloadcell.: +3630 306 6758 ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
In the last episode (Aug 17), Pawel Jakub Dawidek said: On Sat, Aug 16, 2003 at 08:50:30PM -0500, Dan Nelson wrote: + What kind of hardware were you using? 2.5MB/sec NFS sounds + abysmal. I don't think it is a hardware problem. Run this test on 5.1-CURRENT with: options INVARIANTS options INVARIANT_SUPPORT options WITNESS and without any network and NFS optimization. Yes, another test system (P5 MMX/233 laptop) drops its NFS throughput from 4MB/sec to 2.5MB/sec when built with those flags. So I'm assuming you're doing these benchmarks on a comparable system? I think this just demonstrates that you should not run benchmarks with all your debugging flags enabled :) Most people will not be running production systems with WITNESS, and parts of the kernel that bog down under the heavy load of WITNESS may work just fine on a regular kernal config. -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
Attila Nagy wrote: Pawel Jakub Dawidek wrote: It'll be, but probably in read-write mode on one machine and read-only mode on rest machines, because you don't export file systems here, but disk devices. This doesn't work on a shared SCSI bus, so I suspect sharing the device on the net won't help. It works on firewire and it works on a dual port RAID array (as a separate box containing the RAID array). It's supposed to work on SCSI III, but the vendors can quit their arguing and jockey'ing for advantage long enough to approve the range locking specification (which is why GFS uses a network daemon). SAN and NAS are also options, but of course, you still have to have an FS that can deal with it, and an external locking protocol. -- Terry ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Fri, Aug 15, 2003 at 11:53:11AM -0400, Robert Watson wrote: + That said, I think the geom gate stuff looks very cool :-). You might be + able to run some interesting performance numbers comparing NFS and UFS + over a remote block device. Ok. After last geom gate optimizations I'm ready to show some tests. NFS read: 2539890 bytes/sec NFS write: 2668428 bytes/sec GG read file: 5791796 bytes/sec (file was exported) GG write file: 4071411 bytes/sec (file was exported) GG read device: 4635277 bytes/sec (disk device was exported) GG write device: I wasn't able to test This was tested over 100Mbit/s network without any network tuning. -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
In the last episode (Aug 17), Pawel Jakub Dawidek said: On Fri, Aug 15, 2003 at 11:53:11AM -0400, Robert Watson wrote: + That said, I think the geom gate stuff looks very cool :-). You + might be able to run some interesting performance numbers + comparing NFS and UFS over a remote block device. Ok. After last geom gate optimizations I'm ready to show some tests. NFS read: 2539890 bytes/sec NFS write:2668428 bytes/sec GG read file: 5791796 bytes/sec (file was exported) GG write file:4071411 bytes/sec (file was exported) GG read device: 4635277 bytes/sec (disk device was exported) GG write device: I wasn't able to test What kind of hardware were you using? 2.5MB/sec NFS sounds abysmal. You should be able to saturate a 100mbit link with anything made in the last 5 years. The slowest machine I have it a P6/200 with FreeBSD 4.1 and this disk: ad0: 3067MB QUANTUM FIREBALL_TM3200A [6232/16/63] at ata0-master using WDMA2 , which does 7MB/sec raw, can feed a NFS client doing a file read at 5MB/sec. -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Sat, Aug 16, 2003 at 08:50:30PM -0500, Dan Nelson wrote: + What kind of hardware were you using? 2.5MB/sec NFS sounds abysmal. I don't think it is a hardware problem. Run this test on 5.1-CURRENT with: options INVARIANTS options INVARIANT_SUPPORT options WITNESS and without any network and NFS optimization. And this test was: for write: % dd if=/dev/zero /mnt/nfs/test bs=128k count=500 for read: % dd if=/mnt/nfs/test /dev/null bs=128k count=500 -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 10:29:09PM +0200, Pawel Jakub Dawidek wrote: On Thu, Aug 14, 2003 at 09:52:25PM +0400, Buckie wrote: + BTW, QNX had this for a long time, it's called QNet in there. Allows + transparently to mount or use anything in /dev. Even a soundcard! I think this isn't really hard to implement. I tend to agree. I've done some background thinking about this in the past couple of months and couldn't come up with anything especially difficult - though deeper thought may reveal something. The logical implementation is either as a pseudo-filesystem - aka devfs(5) - or (more cleanly) a portal. But there are two problems: 1. Device major numbers. I don't see this as a problem - you do the name to major/minor mapping on the remote system. All that goes across the network is the device name (filename in /dev). This is the same way that NFS works. The device major number is just an easy way for the kernel to map a device name onto the device-specific functions to access the physical hardware - this only needs to occur on the server. 2. Handle network errors. I think the easiest way is just to pass them back to the application. This does mean that an application would get unexpected network-related errors, but there's no obvious alternative. I can think of a third potential problem: Handling ioctl()s where the third argument is a pointer to a structure that itself include pointers to other data objects. This would require special casing those ioctls. (Worse would be SysV-style ioctl's which don't comply with the BSD request encoding). Peter ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Fri, Aug 15, 2003 at 06:44:14PM +1000, Peter Jeremy wrote: + But there are two problems: + 1. Device major numbers. + + I don't see this as a problem - you do the name to major/minor mapping + on the remote system. All that goes across the network is the device + name (filename in /dev). This is the same way that NFS works. The + device major number is just an easy way for the kernel to map a device + name onto the device-specific functions to access the physical + hardware - this only needs to occur on the server. Hmm, I was thinking about something like this: # devaccess 192.168.0.2 host1 # ls -l /dev/host1 list of devices that was exported on host1 And 'devaccess' command will call some kernel mechanism to create new devices, but all those devices are defined in this way: [...] .d_open = std_open, .d_close = std_close, .d_ioctl = std_ioctl, .d_maj =?? [...] And std_open()/std_close()/std_ioctl() are functions that only pass requests to userland daemon, which forwards them to remote host and back. + 2. Handle network errors. + + I think the easiest way is just to pass them back to the application. + This does mean that an application would get unexpected network-related + errors, but there's no obvious alternative. Or translate all of them to EIO. -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
Bruce M Simpson wrote: Whatever next? PCI-over-IP? Collecting cheap on board serial lines to make a big terminal server makes sense to me :) BTW, Pawel's stuff would be even more interesting if it would be possible to mount the same filesystem on more than one machines. -- Attila Nagy e-mail: [EMAIL PROTECTED] Free Software Network (FSN.HU) phone @work: +361 210 1415/127 ISOs: http://www.fsn.hu/?f=downloadcell.: +3630 306 6758 ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 09:48:57PM +0200, Attila Nagy wrote: + Bruce M Simpson wrote: + Whatever next? PCI-over-IP? + Collecting cheap on board serial lines to make a big terminal server + makes sense to me :) + + BTW, Pawel's stuff would be even more interesting if it would be + possible to mount the same filesystem on more than one machines. It'll be, but probably in read-write mode on one machine and read-only mode on rest machines, because you don't export file systems here, but disk devices. -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
Pawel Jakub Dawidek wrote: It'll be, but probably in read-write mode on one machine and read-only mode on rest machines, because you don't export file systems here, but disk devices. This doesn't work on a shared SCSI bus, so I suspect sharing the device on the net won't help. -- Attila Nagy e-mail: [EMAIL PROTECTED] Free Software Network (FSN.HU) phone @work: +361 210 1415/127 ISOs: http://www.fsn.hu/?f=downloadcell.: +3630 306 6758 ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Fri, Aug 15, 2003 at 01:51:03PM +0200, Attila Nagy wrote: Pawel Jakub Dawidek wrote: It'll be, but probably in read-write mode on one machine and read-only mode on rest machines, because you don't export file systems here, but disk devices. This doesn't work on a shared SCSI bus, so I suspect sharing the device on the net won't help. TIme to write a cluster filesystem with lock manager.. -- | / o / /_ _ [EMAIL PROTECTED] |/|/ / / /( (_) Bulte ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Fri, 15 Aug 2003, Pawel Jakub Dawidek wrote: On Thu, Aug 14, 2003 at 09:48:57PM +0200, Attila Nagy wrote: + Bruce M Simpson wrote: + Whatever next? PCI-over-IP? + Collecting cheap on board serial lines to make a big terminal server + makes sense to me :) + + BTW, Pawel's stuff would be even more interesting if it would be + possible to mount the same filesystem on more than one machines. It'll be, but probably in read-write mode on one machine and read-only mode on rest machines, because you don't export file systems here, but disk devices. In order to do this, you need a file system capable of multi-node consistency, and a medium capable of supporting the consistency mechanisms. Since we can't handle mounting the same file system read-write and read-only in multiple places from the same block device without a likely panic, I expect much the same results with a distributed block device. Multiple read-only mounts should work OK, but you don't want to violate the assumptions of the read-only mounts by introducing a read-write mount. File systems can be written that do synchronization on using a protocol of some sort when talking to a common block device, but that will keep you busy for a while, I expect :-). That said, I think the geom gate stuff looks very cool :-). You might be able to run some interesting performance numbers comparing NFS and UFS over a remote block device. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects [EMAIL PROTECTED] Network Associates Laboratories ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Fri, Aug 15, 2003 at 11:01:47AM +0200, Pawel Jakub Dawidek wrote: On Fri, Aug 15, 2003 at 06:44:14PM +1000, Peter Jeremy wrote: + But there are two problems: + 1. Device major numbers. + + I don't see this as a problem - you do the name to major/minor mapping + on the remote system. All that goes across the network is the device + name (filename in /dev). This is the same way that NFS works. The + device major number is just an easy way for the kernel to map a device + name onto the device-specific functions to access the physical + hardware - this only needs to occur on the server. Hmm, I was thinking about something like this: # devaccess 192.168.0.2 host1 # ls -l /dev/host1 list of devices that was exported on host1 And 'devaccess' command will call some kernel mechanism to create new devices, but all those devices are defined in this way: [...] .d_open = std_open, .d_close = std_close, .d_ioctl = std_ioctl, .d_maj =?? [...] And std_open()/std_close()/std_ioctl() are functions that only pass requests to userland daemon, which forwards them to remote host and back. What you've described is a portal. Have a read of Design and Implementation of 4.4BSD by McKusick et al for details (my copy is at work so I can't provide an exact reference). They are mentioned in psd/05.sysman and mount_portal(8). There is a PORTALFS in LINT but it's described as buggy. Note that one downside of this approach is that you are adding two additional userland-kernel transfers for all the data. If you're looking at passing serious amounts of data to/from a remote device, this inefficiency may become noticable. + 2. Handle network errors. + + I think the easiest way is just to pass them back to the application. + This does mean that an application would get unexpected network-related + errors, but there's no obvious alternative. Or translate all of them to EIO. You probably want to log the real error if you map it to something else. The kernel normally will report details of the error when it returns EIO. Peter ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
In message [EMAIL PROTECTED], Pawel Jakub Dawidek writes : --Dx9iWuMxHO1cCoFc Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello hackers... I've done something what will be called GEOM Gate. This software provide disk devices mounting through the network. COOL http://garage.freebsd.pl/geom_gate.tbz I'll look over it when I have a second. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
GEOM Gate.
Hello hackers... I've done something what will be called GEOM Gate. This software provide disk devices mounting through the network. http://garage.freebsd.pl/geom_gate.tbz Installation is quite trivial: # tar -jvxf geom_gate.tbz # cd geom_gate # make # make install For example we got two machine: 'client' and 'server' and we want to mount device /dev/ad0s1a from 'server' machine on 'client' machine. server# ggd -f /dev/ad0s1a client# kldload geom_gate client# ggc -a -h 'server' -s sizeof(/dev/ad0s1a) -u 5 client# mount /dev/gg5 /mnt/foo And that's all. Of course we can also export files and treat them as devices: server# truncate -s 256M test.img server# ggd -f ./test.img -p 1234 client# ggc -a -h 'server' -p 1234 -s 256M -u 6 client# newfs -O2 -U /dev/gg6 client# mount /dev/gg6 /mnt/bar This isn't finished yet, so it also isn't bugs free. For example don't try to run client and server stuff on this same machine, this could case a deadlock. Comments, etc. are of course welcome. -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
BTW, QNX had this for a long time, it's called QNet in there. Allows transparently to mount or use anything in /dev. Even a soundcard! PJD Hello hackers... PJD I've done something what will be called GEOM Gate. PJD This software provide disk devices mounting through the network. PJD http://garage.freebsd.pl/geom_gate.tbz ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
Bruce M Simpson wrote: On Thu, Aug 14, 2003 at 09:52:25PM +0400, Buckie wrote: BTW, QNX had this for a long time, it's called QNet in there. Allows transparently to mount or use anything in /dev. Even a soundcard! Whatever next? PCI-over-IP? *shudder* Not new: http://www.isi.edu/div7/netstation/ Lars -- Lars Eggert [EMAIL PROTECTED] USC Information Sciences Institute smime.p7s Description: S/MIME Cryptographic Signature
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 09:52:25PM +0400, Buckie wrote: + BTW, QNX had this for a long time, it's called QNet in there. Allows + transparently to mount or use anything in /dev. Even a soundcard! I think this isn't really hard to implement. But there are two problems: 1. Device major numbers. 2. Handle network errors. -- Pawel Jakub Dawidek [EMAIL PROTECTED] UNIX Systems Programmer/Administrator http://garage.freebsd.pl Am I Evil? Yes, I Am! http://cerber.sourceforge.net pgp0.pgp Description: PGP signature
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 09:52:25PM +0400, Buckie wrote: BTW, QNX had this for a long time, it's called QNet in there. Allows transparently to mount or use anything in /dev. Even a soundcard! Whatever next? PCI-over-IP? *shudder* BMS ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 01:03:27PM +0200, Pawel Jakub Dawidek wrote: Hello hackers... I've done something what will be called GEOM Gate. This software provide disk devices mounting through the network. http://garage.freebsd.pl/geom_gate.tbz Cute...! reminds me of RFS on SysV. W/ -- | / o / /_ _ [EMAIL PROTECTED] |/|/ / / /( (_) Bulte ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: GEOM Gate.
On Thu, Aug 14, 2003 at 01:03:27PM +0200, Pawel Jakub Dawidek wrote: This software provide disk devices mounting through the network. maaan you're amazing. i hope some day you'll write remote terminal emulator. that would be great. -- klub milosnikow czeskiego techno ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
