Re: Why is there no JFS?

2003-02-13 Thread Terry Lambert
David Schultz wrote: The easy way to fix this is to insert a new dependency for the completion of the allocation. Basically, this would put in a stall barrier that would cause the outstanding I/O to drain before the new I/O was attempted. All other operations behind the one that caused

Re: Why is there no JFS?

2003-02-13 Thread David Schultz
Thus spake Terry Lambert [EMAIL PROTECTED]: David Schultz wrote: The easy way to fix this is to insert a new dependency for the completion of the allocation. Basically, this would put in a stall barrier that would cause the outstanding I/O to drain before the new I/O was attempted.

Re: Why is there no JFS?

2003-02-13 Thread Darren Pilgrim
David Schultz wrote: Thus spake Terry Lambert [EMAIL PROTECTED]: David Schultz wrote: The easy way to fix this is to insert a new dependency for the completion of the allocation. Basically, this would put in a stall barrier that would cause the outstanding I/O to drain before the new I/O was

Re: Why is there no JFS?

2003-02-13 Thread David Schultz
Thus spake Darren Pilgrim [EMAIL PROTECTED]: David Schultz wrote: Thus spake Terry Lambert [EMAIL PROTECTED]: IMO, this is not the reason for them being off on /; the real reason is as I've stated: sysinstall expects the common case to be an initial install, not operations after the initial

Re: Why is there no JFS?

2003-02-13 Thread Alfred Perlstein
This thread should be on -questions. As far as safe updating, one can always take a snapshot before installworld and restore from that if something goes awry. thank you, -Alfred To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message

Re: Why is there no JFS?

2003-02-13 Thread Terry Lambert
David Schultz wrote: Thus spake Terry Lambert [EMAIL PROTECTED]: In other words, if it would have worked with soft updates turned off, then it will work with soft updates turned on. My point was that a busy disk that is nearly 100% full will probably experience intermitted ``disk full''

Re: Why is there no JFS?

2003-02-13 Thread Terry Lambert
David Schultz wrote: I think softupdates is still (viewed as) riskier than synchronous writes, at least for large numbers of writes (like installworld) to a NB: An initial system install is done with async mounts. You can't use async mounts if you use soft updates, because the

Why is there no JFS?

2003-02-12 Thread Daxbert
The inspiration for this email was from a thread in -questions: Re: fsck takes very long after crash/reset Is anybody currently working on or does there exist a JFS for FreeBSD? I've read in the archives, the discussion about not really needing JFS because of the benefits of softupdates. As

Re: Why is there no JFS?

2003-02-12 Thread Kevin Golding
Someone, quite probably Daxbert, once wrote: The inspiration for this email was from a thread in -questions: Re: fsck takes very long after crash/reset Is anybody currently working on or does there exist a JFS for FreeBSD? http://jfs4bsd.sourceforge.net/ Kevin -- [EMAIL PROTECTED] To

Re: Why is there no JFS?

2003-02-12 Thread Mike Meyer
In 045401c2d2db$f9d45c30$[EMAIL PROTECTED], Daxbert [EMAIL PROTECTED] typed: Is anybody currently working on or does there exist a JFS for FreeBSD? To the best of my knowledge, there is no JFS, and nobody is working on one. I've read in the archives, the discussion about not really needing

Re: Why is there no JFS?

2003-02-12 Thread northern snowfall
One with a license that will let it be distributed in the core. That lets out GPL'ed code, and I believe it lets out XFS as well, though I'm not positive on that. Just FYI, IBM's JFS is GPL'd, IIRC, according 2 the WWW site for JFS. Hah, yay for acronyms.

Re: Why is there no JFS?

2003-02-12 Thread David Schultz
Thus spake Daxbert [EMAIL PROTECTED]: The inspiration for this email was from a thread in -questions: Re: fsck takes very long after crash/reset Is anybody currently working on or does there exist a JFS for FreeBSD? ... Is there not a JFS for FreeBSD becuase, Softupdates do the job just

Re: Why is there no JFS?

2003-02-12 Thread Matthew Emmerton
Thus spake Daxbert [EMAIL PROTECTED]: The inspiration for this email was from a thread in -questions: Re: fsck takes very long after crash/reset Is anybody currently working on or does there exist a JFS for FreeBSD? Various people (including myself and Hiten Pandya) have done work to

Re: Why is there no JFS?

2003-02-12 Thread Darren Pilgrim
Matthew Emmerton wrote: Thus spake Daxbert [EMAIL PROTECTED]: The inspiration for this email was from a thread in -questions: Re: fsck takes very long after crash/reset Is anybody currently working on or does there exist a JFS for FreeBSD? Various people (including myself and Hiten Pandya)

Re: Why is there no JFS?

2003-02-12 Thread Terry Lambert
northern snowfall wrote: Just FYI, IBM's JFS is GPL'd, IIRC, according 2 the WWW site for JFS. Hah, yay for acronyms. And the IBM JFS is actually the OS/2 JFS, not the AIX JFS. -- TRL To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message

Re: Why is there no JFS?

2003-02-12 Thread Cliff Sarginson
On Wed, Feb 12, 2003 at 07:40:00PM -0800, Terry Lambert wrote: Darren Pilgrim wrote: Not really. A properly laid-out filesystem hierarchy will result in no writes to / (except for installworld/kernel). That removes the problem that journalling addresses, and is probably why softupdates is

Re: Why is there no JFS?

2003-02-12 Thread Darren Pilgrim
Terry Lambert wrote: Darren Pilgrim wrote: Not really. A properly laid-out filesystem hierarchy will result in no writes to / (except for installworld/kernel). That removes the problem that journalling addresses, and is probably why softupdates is disabled by default for /. For large, active

Re: Why is there no JFS?

2003-02-12 Thread Michael Sierchio
Darren Pilgrim wrote: Soft updates are disable on / by default because of the chicken and egg problem of runing tunefs on /. If that's the problem, then why doesn't sysinstall enable it by default when partitioning for a new install? You can certainly change the options in sysinstall to

Re: Why is there no JFS?

2003-02-12 Thread Brooks Davis
On Wed, Feb 12, 2003 at 07:40:00PM -0800, Terry Lambert wrote: Darren Pilgrim wrote: Not really. A properly laid-out filesystem hierarchy will result in no writes to / (except for installworld/kernel). That removes the problem that journalling addresses, and is probably why softupdates is

Re: Why is there no JFS?

2003-02-12 Thread David Schultz
Thus spake Brooks Davis [EMAIL PROTECTED]: On Wed, Feb 12, 2003 at 07:40:00PM -0800, Terry Lambert wrote: Darren Pilgrim wrote: Not really. A properly laid-out filesystem hierarchy will result in no writes to / (except for installworld/kernel). That removes the problem that

Re: Why is there no JFS?

2003-02-12 Thread Terry Lambert
Darren Pilgrim wrote: Terry Lambert wrote: Soft updates are disable on / by default because of the chicken and egg problem of runing tunefs on /. If that's the problem, then why doesn't sysinstall enable it by default when partitioning for a new install? Oliver Stone said it was because

Re: Why is there no JFS?

2003-02-12 Thread Randy Bush
Soft updates are disable on / by default because of the chicken and egg problem of runing tunefs on /. If that's the problem, then why doesn't sysinstall enable it by default when partitioning for a new install? Oliver Stone said it was because there's a conspiracy. it's the downdraft from

Re: Why is there no JFS?

2003-02-12 Thread Terry Lambert
Michael Sierchio wrote: Darren Pilgrim wrote: Soft updates are disable on / by default because of the chicken and egg problem of runing tunefs on /. If that's the problem, then why doesn't sysinstall enable it by default when partitioning for a new install? You can certainly change

Re: Why is there no JFS?

2003-02-12 Thread Terry Lambert
David Schultz wrote: There's no chicken and egg problem when you're booting off install media or for that matter from single user mode. The problem was that softupdates means you don't get space back from deleted files immediatly so previously / tended to fillup during installworld or

Re: Why is there no JFS?

2003-02-12 Thread Christoph Hellwig
On Wed, Feb 12, 2003 at 06:41:56PM -0800, Terry Lambert wrote: northern snowfall wrote: Just FYI, IBM's JFS is GPL'd, IIRC, according 2 the WWW site for JFS. Hah, yay for acronyms. And the IBM JFS is actually the OS/2 JFS, not the AIX JFS. Or AIX JFS2 :) (In fact both AIX JFS2 (j2) and