If DFSMS uses the SFS for read/only activity. I would be tempted to give
it its own small filepool and DDR DUMP it once. There would be no need
to go to the pain of first creating a new filepool into which I could
then do a FILEPOOL RELOAD. Even if there is R/W activity in the
filepool, it would not take much time to redo the DDR as part of the
periodic backup process. DFSMS would have to be paused for only a very
short time.

Regards, 
Richard Schuh 

 

> -----Original Message-----
> From: The IBM z/VM Operating System 
> [mailto:[EMAIL PROTECTED] On Behalf Of Romanowski, John (OFT)
> Sent: Friday, March 28, 2008 10:57 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: DR refresh of active SFS
> 
> Thomas and Marcy,
> I agree 100%. As Marcy said " there are plenty of VM newbies 
> around here these days who shouldn't have to understand all 
> the care and feeding of SFS in order to backup and restore 
> their systems or to configure their tape libraries for that matter."
> 
> I minimize? the pain of "DFSMS RMS requires stuff in SFS" by 
> putting the DFSMS filespace  and its SFS Work_directory into 
> 2 small storage groups
> (3 and 4) in VMSYS instead of into VMSYS:'s main, default 
> storage storage group 2.
> 
> That way I can FILEPOOL UNLOAD and FILEPOOL RELOAD these 
> DFSMS-RMS storage groups independently of the main storage group 2.
>  At DR-time I can restore them with FILEPOOL RELOAD before the main
> VMSYS: storage group(s) have been restored from backups that 
> need RMS-mounted tapes.
> Minimizes the chicken-egg problem for me.
> 
> 
> q  filepool  stor  vmsys                                      
>          
>                        VMSYS    File Pool Storage Groups      
>           
>                                                               
>           
> Start-up Date 08/20/07                              Query 
> Date 03/28/08 
> Start-up Time 11:50:57                              Query 
> Time 13:56:14 
> ==============================================================
> ==========
> STORAGE GROUP INFORMATION                                     
>           
>                                                               
>           
>  Storage        4K Blocks       4K Blocks                     
>           
>  Group No.        In-Use          Free                        
>           
>      1          5023 -  56%       3960                        
>           
>      2        263300 -  74%      90332                        
>           
>      3            10 -   2%        522                        
>           
>      4             0 -   0%       2149                        
>           
> ==============================================================
> ==========
> 
> 
> --------------------------------------------------------
> This e-mail, including any attachments, may be confidential, 
> privileged or otherwise legally protected. It is intended 
> only for the addressee. If you received this e-mail in error 
> or from someone who was not authorized to send it to you, do 
> not disseminate, copy or otherwise use this e-mail or its 
> attachments.  Please notify the sender immediately by reply 
> e-mail and delete the e-mail from your system.
> 
> 
> -----Original Message-----
> 
> From: The IBM z/VM Operating System 
> [mailto:[EMAIL PROTECTED] On Behalf Of Thomas Kern
> Sent: Friday, March 28, 2008 12:47 PM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: DR refresh of active SFS
> 
> On the one system where I do have an ATL and therefore 
> RMSMASTR, I have also kept real data out of the VMS* 
> filepools. They are quite small so it is easy and quick to 
> force RMSMASTR, do the FILEPOOL UNLOAD  to CMS disk files and 
> bring RMSMASTR back up in order to mount the tapes for the 
> largest SFS and the full volume backups. Or even mount your 
> backup tape, bring down RMSMASTR, backup the VMS* filepools 
> to that tape, then bring RMSMASTR back up.
> 
> But the key is that NOTHING else is in the VMS* filepools. 
> This would be so much easier if RMSMASTR's configuration 
> files and logs were allowed to be on real CMS minidisks.
> 
> /Tom Kern
> /301-903-2211
> 
> On Fri, 28 Mar 2008 11:31:58 -0500, Marcy Cortes 
> <[EMAIL PROTECTED]> wrote:
> >I opened a SHARE requirement about this.
> > 
> >DFSMS RMS requires stuff in SFS.
> >To get a valid backup you must either have some software that 
> >understands the SFS or have the SFS down.  But you can' t 
> have the SFS 
> >down or you can't mount a tape if they are in an ATL.
> >But you'd like to have RMS available as soon as you restore 
> your full 
> >pack so that you can use that special SW you purchased to 
> restore your 
> >SFS!
> >So, you really have to do a fileserve generate and then copy 
> in enough 
> >of your DFSMS configs that hopefully you've kept elsewhere 
> on minidisk 
> >in order to get your ATL to work.
> > 
> >In reality, what we do is *hope* that the physcial backup while it is
> up
> >is ok.  We keep nothing but dfsms in there (in the VMS* 
> filepools) in 
> >hopes that since it is static, no issues will arise.
> > 
> > 
> >
> >Marcy Cortes
> >
> 

Reply via email to