Re: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-19 Thread Eric Schrock
On Tue, Sep 19, 2006 at 01:55:33PM +0200, Robert Milkowski wrote: > > What's the difference between -t and -R / > ? > Basically nothing implementation-wise, except that you don't have the weird notion 'alternate root=/', which doesn't really make any sense. It's really just a clarification of be

Re[2]: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-19 Thread Robert Milkowski
Hello Eric, Thursday, September 14, 2006, 7:48:48 PM, you wrote: ES> On Thu, Sep 14, 2006 at 07:46:33AM -0700, Anton B. Rang wrote: >> >> It looks like 'zpool create -R' should solve the problem for anyone >> who is trying to build their own clustering facility, since it >> prevents the automati

Re: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-14 Thread Eric Schrock
On Thu, Sep 14, 2006 at 07:46:33AM -0700, Anton B. Rang wrote: > > It looks like 'zpool create -R' should solve the problem for anyone > who is trying to build their own clustering facility, since it > prevents the automatic import. Maybe we just need to document that > more clearly? Calling it "a

Re: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-14 Thread Darren J Moffat
Anton B. Rang wrote: You need to rewrite/extend that to deal with the fact that ZFS doesn't use vfstab and instead express it in terms of ZFS import/export. The problem (as I see it) is that ZFS import is (by default) implicit at startup, while UFS mount is (by default) only performed when exp

[zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-14 Thread Anton B. Rang
> You need to rewrite/extend that to deal with the fact that ZFS doesn't use > vfstab > and instead express it in terms of ZFS import/export. The problem (as I see it) is that ZFS import is (by default) implicit at startup, while UFS mount is (by default) only performed when explicitly request

Re: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-13 Thread James C. McPherson
Mathias F wrote: ... Yes it is, you got it ;) VxVM just notices that it's previously imported DiskGroup(s) (for ZFS this is the Pool) were failed over and doesn't try to re-acquire them. It waits for an admin action. The topic of "clustering" ZFS is not the problem atm, we just test the failover

Re: [zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-13 Thread Michael Schuster
Mathias F wrote: I think I get the whole picture, let me summarise: - you create a pool P and an FS on host A - Host A crashes - you import P on host B; this only works with -f, as "zpool import" otherwise refuses to do so. - now P is imported on B - host A comes back up and re-accesses P, the

[zfs-discuss] Re: Re: ZFS imported simultanously on 2 systems...

2006-09-13 Thread Mathias F
> I think I get the whole picture, let me summarise: > > - you create a pool P and an FS on host A > - Host A crashes > - you import P on host B; this only works with -f, as > "zpool import" otherwise > refuses to do so. > - now P is imported on B > - host A comes back up and re-accesses P, there