zfs discuss - Dec 2008 - Replicating many home directories between hosts

Is anyone out there replicating a thousand or more ZFS filesystems between hosts
using zfs send/receive?

I have been attempting to do this, but I keep producing "toxic"
streams that panic the receiving host.  So far, about 1 in 1500 (2 out of about
3000) incremental steams appear toxic.

-- 
Ian.

On Thu, Dec 18, 2008 at 4:57 PM, Ian Collins <ian at ianshome.com> wrote:
>
> Is anyone out there replicating a thousand or more ZFS filesystems between
> hosts using zfs send/receive?

I did this with about 2000 data sets on 2x x4500s with Solaris 10U5 that was
patched. Most directories had just a copy of skel in them, but a few with a
gigabyte or two.

I have been attempting to do this, but I keep producing "toxic"
streams that
> panic the receiving host.  So far, about 1 in 1500 (2 out of about 3000)
> incremental steams appear toxic.
>
Never had a panic. I had to keep the receiving side parent data set
unmounted. i.e. zfs set mountpoint=legacy, on newer builds you can set none.

- scott
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What version of Solaris and ZFS are you running there?
-- 
This message posted from opensolaris.org

Scott Williamson wrote:
> On Thu, Dec 18, 2008 at 4:57 PM, Ian Collins <ian at ianshome.com
> <mailto:ian at ianshome.com>> wrote:
>
>
>     Is anyone out there replicating a thousand or more ZFS filesystems
>     between hosts using zfs send/receive?
>
>
> I did this with about 2000 data sets on 2x x4500s with Solaris 10U5
> that was patched. Most directories had just a copy of skel in them,
> but a few with a gigabyte or two.
That''s very similar to my setup, two x4540s (Solaris 10U6) sending to
each other and an x4500 (Solaris 10U5) with a tape unit.
>
>     I have been attempting to do this, but I keep producing
"toxic"
>     streams that panic the receiving host.  So far, about 1 in 1500 (2
>     out of about 3000) incremental steams appear toxic.
>
>
> Never had a panic. I had to keep the receiving side parent data set
> unmounted. i.e. zfs set mountpoint=legacy, on newer builds you can set
> none.
I haven''t had to do that, I either use atime=off, readonly=on (the
staging server) or zfs receive -F to squash filesytem changed errors. 
If they are unmounted, backup software can''t see them.

-- 
Ian.

Ross wrote:
> What version of Solaris and ZFS are you running there?
>   
Solaris 10 update 6 and update 5.  Al the filesystems are version 1.

-- 
Ian.