If I allocate x amount of storage to a SFS file pool and the tree structure is
such that I have x subdirectories under my top directory, will my
subdirectories have access to all allocated storage within that specific
storage pool, say for instance storage pool 3.
Also will my subdirectories inherit all security controls from my top directory.
Date: Wed, 23 Mar 2011 10:52:15 +0100
From: kris.buel...@gmail.com
Subject: Re: SFS
To: IBMVM@LISTSERV.UARK.EDU
Yes indeed, I meant "are not copied"..... very bad eyes and bad typist, sorry.
2011/3/23 Les Koehler <vmr...@tampabay.rr.com>
Spilling error below?
Les
Kris Buelens wrote:
The RENAME and ERASE commands are indeed "atomic operations".
You can't even issue a RENAME or ERASE when the current workunit has
uncommited work. Then you can get around by getting a new workunit, making
it the default, etc. There is no *need* to use other than the deafult
workunit with DMSFILEC or DMSRENAM if you can afford committing all work
that is pending in that workunit.
Some other thing when using SFS: if you'd use the sequence COPY into
tempfile, followed by a RENAME to install a new version of "MY FILE" note
then that the auhtories granted to the orignal "MY FILE" or not copied to
You meant: 'are not copied', right?
the new version of "MY FILE". That pleads to use DMSFILEC with REPLACE.
2011/3/22 Alan Altmark <alan_altm...@us.ibm.com>
On Tuesday, 03/22/2011 at 12:18 EDT, Les Koehler <vmr...@tampabay.rr.com>
wrote:
So with FILE CONTROL you can't replace co-dependent files in one atomic
operation, as one would do with the 'copyfile two-step' (love that
phrase!)?
Yes, you can (and in DIRECTORY CONTROL directories, too), but you need to
become familiar with workunits, DMSGETWU, DMSPUSWU and DMSPOPWU. See the
discussion of workunits in Chapter 12 of the CMS Application Dev. Guide.
If memory serves, you get a new workunit, push it on the stack, do all
your file updates, then pop the workunit. But it's been a long time. Just
don't expect RENAME and ERASE to obey the rules. I think they are atomic
operations.
Alan Altmark
z/VM and Linux on System z Consultant
IBM System Lab Services and Training
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott
--
Kris Buelens,
IBM Belgium, VM customer support
