[Zope] How to backup Zope data base?

[Marty Stitt]

I've just noticed another thing on this 'how to backup Data.fs' issue.

Preparing to backup my work, I did a pack, and was then going to archive
the resulting Data.fs.old.  Because I'd added and deleted a bunch of
files earlier today, the Data.fs.old file was 22M in size, and the freshly
packed Data.fs was 4M.  For example:

	-rw-r--r--    1 zope     WebAuths  4325257 Jan 18 15:30 Data.fs
	-rw-r--r--    1 zope     WebAuths    76750 Jan  8 08:43 Data.fs.in
	-rw-r--r--    1 zope     WebAuths   129950 Jan 17 13:59 Data.fs.index
	-rw-r--r--    1 zope     WebAuths        4 Jan  9 11:33 Data.fs.lock
	-rw-r--r--    1 zope     WebAuths 22026222 Jan 17 13:53 Data.fs.old
	-rw-r--r--    1 zope     WebAuths   188416 Jan 18 15:43 Data.fs.pack
	-rw-r--r--    1 zope     WebAuths  8656275 Jan 18 15:30 Data.fs.tmp

So, I tried running another pack, figuring that the .old file would then
be replaced with a copy of the 4M file.  But, it remained at 22M.

I then deleted the Data.fs.old file, and re-ran the pack.  At this
point, I noticed that there has been a Data.fs.pack file around, and
I don't get a new Data.fs.old.  For example:

	-rw-r--r--    1 zope     WebAuths  4325257 Jan 18 15:30 Data.fs
	-rw-r--r--    1 zope     WebAuths    76750 Jan  8 08:43 Data.fs.in
	-rw-r--r--    1 zope     WebAuths   129950 Jan 17 13:59 Data.fs.index
	-rw-r--r--    1 zope     WebAuths        4 Jan  9 11:33 Data.fs.lock
	-rw-r--r--    1 zope     WebAuths  4079616 Jan 18 15:43 Data.fs.pack
	-rw-r--r--    1 zope     WebAuths  8656275 Jan 18 15:30 Data.fs.tmp

I'm running 2.2.5, under redhat 7.0.

It seems like the idea of running a pack and then archiving Data.fs.old
may not always be giving me a valid archive.  Should I archive the
Data.fs.pack file instead?



Oleg Broytmann wrote:
> 
> On Thu, 18 Jan 2001, Etienne  Labuschagne wrote:
> > What is the best way to backup Zope's database whithout stopping Zope?  When
> 
>    Pack + backup Data.fs.old.


-- 
Martin Stitt
Chief Software Engineer
Esker, Inc.
email: marty.stitt@esker.com
phone: (608) 273-6000 x331
fax:   (608) 273-8227
web:   http://www.esker.com