Re: Zfs on NetBSD

[Ron Georgia <netverbs%gmail.com@localhost>]

I updated "everything" to 8.99.51 and now have zfs running. Was able to create a mirrored pool. Thanks all for the responses. I'm sure there will be more questions coming.

On 7/28/19, 9:11 AM, "Chavdar Ivanov" <ci4ic4%gmail.com@localhost> wrote:

    On second thought, ' zpool scrub' worked as expected; the amount
    initially copied was not enough to notice it.
    
    It does tak a lot of memory, though - as expected, during the tar copy:
    ...
    Memory: 8387M Act, 4101M Inact, 40K Wired, 38M Exec, 12G File, 31M Free
    ... (on a 20GB laptop).
    
    On Sun, 28 Jul 2019 at 12:35, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
    >
    > For quite a while I hadn't tried ZFS under NetBSD; it used to crash
    > for me years ago under load and didn't seem much in the focus of the
    > development, I think it is fair to say. Following this thread, I
    > decided to give it a go. There was presently unused 32GB mSATA card in
    > one of my laptops, which I unmounted; there was no need to clean the
    > labels at all.
    > On -current 8.99.51 from a few days ago everything seem to be working
    > fine for me:
    > ...
    > modload zfs
    > modstat zfs
    > zpool create tank /dev/wd2d
    > zpool status
    > df -k
    > ls -la /tank
    > zfs create tank/t1
    > zfs create tank/t2
    > zfs create tank/t3
    > df -k
    > zpool status
    > zpool scrub tank
    > zpool status
    > .....
    > Some 13GB worth of packages were also tarred over with reasonable speed.
    >
    > I am not sure if 'zpool scrub' actually does something, though - even
    > when there is some data on the disk, the subsequent 'zpool status'
    > claims the scrub has finished straight away:
    > ...
    > # zpool status tank
    >   pool: tank
    >  state: ONLINE
    >   scan: scrub repaired 0 in 0h0m with 0 errors on Sun Jul 28 13:23:47 2019
    > config:
    >
    >         NAME        STATE     READ WRITE CKSUM
    >         tank        ONLINE       0     0     0
    >           wd2d      ONLINE       0     0     0
    >
    > errors: No known data errors
    > # zpool scrub tank
    > # zpool status tank
    >   pool: tank
    >  state: ONLINE
    >   scan: scrub repaired 0 in 0h0m with 0 errors on Sun Jul 28 13:32:08 2019
    > config:
    >
    >         NAME        STATE     READ WRITE CKSUM
    >         tank        ONLINE       0     0     0
    >           wd2d      ONLINE       0     0     0
    >
    > errors: No known data errors
    > ......
    >
    > Chavdar
    >
    > On Sun, 28 Jul 2019 at 07:54, Greg Troxel <gdt%s1.lexort.com@localhost> wrote:
    > >
    > > Ron Georgia <netverbs%gmail.com@localhost> writes:
    > >
    > > > Yes, I do have /dev/zfs.
    > > > $ ll /dev/zfs
    > > > crw-------  1 root  wheel  190, 0 Jul 21 15:23 /dev/zfs
    > > >
    > > > I did find the zfs.mod, but get this error when trying to load it.
    > > > $ sudo modload /stand/amd64/8.1/modules/zfs/zfs.kmod
    > > > modload: /stand/amd64/8.1/modules/zfs/zfs.kmod: Program version wrong
    > > >
    > > > Which makes sense since I am booting kernel 8.99.51 NetBSD 8.99.51 (GENERIC)
    > > > I did pull down the sets for NetBSD 8.99.51 (GENERIC) and unpacked base.tar.xz and modules.tar.xz. Then I copied the contents of stand to /stand/amd64/8.99.51. (Should I remove /stand/amd64/8.1?)
    > >
    > > Basically, you need consistent kernel and modules.  So if you have moved
    > > to current permanently, yes, delete the 8.1 modules.
    > >
    > > Also, to run current zfs, it seems overwhelmingly likely that you want
    > > to run the zfs userland binaries from current, not from 8.1.
    > >
    > > You may want to look at the various schemes for in-place updating, such
    > > as INSTALL-NetBSD from pkgsrc/sysutils/etcmanage (my take on how to do
    > > it), and sysupgrade (somebody else's take).
    > >
    > > I unpack all the sets except etc/xetc, unpack etc/xetc into
    > > /usr/netbsd-etc, and then merge the etc changes.
    > >
    > > > [ 11951.1654531] WARNING: module error: module `zfs' built for `801000000', system `899005100'
    > > > [ 12310.9533135] WARNING: module error: module `zfs' built for `801000000', system `899005100'
    > > > [ 12509.3029082] WARNING: module error: recursive load failed for `zfs' (`solaris' required), error 2
    > > > [  30.9168505] WARNING: module error: incompatible module class for `zfs' (3 != 2)
    > > > [  30.9769426] WARNING: module error: incompatible module class for `zfs' (3 != 2)
    > >
    > > That really looks like you are loading 8.1 modules.  rm them, and maybe
    > > you will get a different error.
    > >
    >
    >
    > --
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