Date: Thu, 18 Dec 2014 18:57:58 -0500 (EST) From: Rick Macklem <rmacklem@uoguelph.ca> To: "Russell L. Carter" <rcarter@pinyon.org> Cc: freebsd-net@freebsd.org Subject: Re: compiling on nfs directories Message-ID: <156986383.574215.1418947078905.JavaMail.root@uoguelph.ca> In-Reply-To: <5493040A.6040209@pinyon.org>
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Russell L. Carter wrote: > > > On 12/18/14 08:37, Adam Vande More wrote: > > On Thu, Dec 18, 2014 at 9:29 AM, Alan Somers <asomers@freebsd.org> > > wrote: > >> > >> On Wed, Dec 17, 2014 at 6:54 PM, Russell L. Carter > >> <rcarter@pinyon.org> > >> wrote: > >>> On 12/17/14 18:30, Adam McDougall wrote: > >>>> > >>>> On 12/17/2014 19:47, Russell L. Carter wrote: > >>>>> > >>>>> > >>>>> > >>>>> On 12/17/14 16:07, Rick Macklem wrote: > >>>> > >>>> > >>>>>> If this is using an exported ZFS volume, it would be nice if > >>>>>> you > >>>>>> could do the same test using an exported UFS file system, to > >>>>>> see if > >>>>>> this is ZFS related. > >>>>> > >>>>> > >>>>> It is indeed using exported ZFS filesystems, but unfortunately > >>>>> I have > >>>>> no USF filesystems available to test. > >>>>> > >>>>> Russell > >>>> > >>>> > >>>> Can you create a zvol, newfs it with ufs and export it? > >>> > >>> > >>> Maybe. I would love to help if I can, w/o disrupting my existing > >>> carefully planned physical disk layouts. I'm a zfs novice here, > >>> do I > >>> need free space unallocated to existing zpools, or can I shrink > >>> an > >>> existing pool? (assuming that zfs can transmute lead into gold, > >>> with > >>> the right incantations). I have plenty of "free" space allocated > >>> to > >>> existing pools that span my physical drives. > >>> > >>> If I have to add a physical drive (that's possible, but it will > >>> be a > >>> slow drive sitting on my shelf) then I need to wait until I get > >>> back > >>> from holiday travels. > >> > >> > >> You don't need to screw with your pools at all. A zvol is like a > >> managed like a ZFS filesystem, except it's a block device. You > >> can > >> create one and mount it with a command like this: > >> zfs create -V 8g mypool/myvol > >> newfs [options] /dev/mypool/myvol > >> mount /dev/mypool/myvol /mnt > > > > > > Using a flash drive or temporary drive seems like a much more > > comprehensive > > test as you can fully eliminate ZFS from the picture. Which is the > > point > > of the exercise. > > Btw, avg@ just MFC'd r275401 which is a 1 line ZFS patch that helps to update time stamps. This one line patch might be worth a try? https://svnweb.freebsd.org/base/head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c?r1=274337&r2=275401 rick > > Ok, good suggestions, noted, and thanks! Unfortunately I'm going > to have to pick this up when I get back. > > Russell > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to > "freebsd-net-unsubscribe@freebsd.org" >
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