From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <201011171823.27527.dexen.devries@gmail.com> References: <201011171823.27527.dexen.devries@gmail.com> Date: Wed, 17 Nov 2010 09:44:27 -0800 Message-ID: From: David Leimbach To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=0016e644df4a8e018e0495433964 Subject: Re: [9fans] Anyone using p9p or Plan 9 venti as a more generic backup system? Topicbox-Message-UUID: 84351e44-ead6-11e9-9d60-3106f5b1d025 --0016e644df4a8e018e0495433964 Content-Type: text/plain; charset=ISO-8859-1 On Wed, Nov 17, 2010 at 9:23 AM, dexen deVries wrote: > On Wednesday 17 November 2010 18:14:35 Venkatesh Srinivas wrote: > > (...) > > I'd be very careful with vac -m and -a on Unix; both have been at the > > root of considerable data-loss on a unix venti for me. I'd recommend > > vac-ing tarballs, rather than using vac's on unix trees directly. But > > your mileage may vary... > > > could you please elaborate a bit about that data loss? > traversing symlinks breaks? some files not getting read by vac at all? > > (I'm interested in using p9p vac+venti in similar manner, but on Linux w/ > GNU > stuff) > > -- > dexen deVries > I could imagine vac/unvac not dealing with resource forks or POSIX extended attributes and such properly, as well as potentially having difficulty with symlinks, but having dealt with stuff like that in "xar", I don't think it's too difficult to address. I may need to read up on venti and see what sorts of data types it supports. Might be time to add some extensions? Dave > > > ``One can't proceed from the informal to the formal by formal means.'' > > --0016e644df4a8e018e0495433964 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On Wed, Nov 17, 2010 at 9:23 AM, dexen d= eVries <dex= en.devries@gmail.com> wrote:
On Wednesday 17 November 2010 18:14:35 Venkatesh Srinivas wrote:
> (...)
> I'd be very careful with vac -m and -a on Unix; = both have been at the
> root of considerable data-loss on a unix venti for me. I'd recomme= nd
> vac-ing tarballs, rather than using vac's on unix trees directly. = But
> your mileage may vary...


could you please elaborate a bit about that data loss?
traversing symlinks breaks? some files not getting read by vac at all?

(I'm interested in using p9p vac+venti in similar manner, but on Linux = w/ GNU
stuff)

--
dexen deVries

I could imagine va= c/unvac not dealing with resource forks or POSIX extended attributes and su= ch properly, as well as potentially having difficulty with symlinks, but ha= ving dealt with stuff like that in "xar", I don't think it= 9;s too difficult to address.

I may need to read up on venti and see what sorts of da= ta types it supports. =A0Might be time to add some extensions?
Dave
=A0


``One can't proceed from the informal to the formal by formal means.= 9;'


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