Mine are 23 3390-03s for one, only 15 in the other. Unfortunately, the user community is small but active. There are several CDBs in any given day.
I think what I will do is create a third filepool whose only purpose is to host the backups from the other two. That would simplify the coordination of the backups. Put each on a 2-hour CDB cycle with one on the even numbered hour and the other on the odd. That frequency would probably be often enough to keep LUWs from ever being suspended. Regards, Richard Schuh > -----Original Message----- > From: The IBM z/VM Operating System > [mailto:ib...@listserv.uark.edu] On Behalf Of C. Lawrence Perkins > Sent: Tuesday, June 16, 2009 3:28 PM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Re: Control Data Backups > > They're both quite large - the data disks are 3 3390-27 but > they both enj= oy > a "working vacation" in terms of activity. Some huge files > get written = > to > them every morning, then users read them all day long. The > user communit= y is also large, but not volatile. The CDB's > take place about 3am when no = > > creatures are stirring, not even mice. > > > On Mon, 15 Jun 2009 16:47:37 -0700, Schuh, Richard > <rsc...@visa.com> wrot= > e: > > >How large and active (creating, modifying or deleting files, > actively = > > modifying permissions, adding/deleting users, etc.) are your > two filepool= s? > > > >Regards, > >Richard Schuh > > > > > > > >> -----Original Message----- > >> From: The IBM z/VM Operating System > >> [mailto:ib...@listserv.uark.edu] On Behalf Of C. Lawrence Perkins > >> Sent: Friday, June 12, 2009 6:39 PM > >> To: IBMVM@LISTSERV.UARK.EDU > >> Subject: Re: Control Data Backups > >> > >> On Fri, 12 Jun 2009 14:52:40 -0700, Schuh, Richard > <rsc...@visa.com> > >> wrot= > >> e: > >> > >> >Suppose I have two filepools called SFS1 and SFS2. Would > >> having each do > >> >= > >> > >> control data backups to the other cause problems. For purposes of > >> this = > >> > >> discussion, assume that they would not do the backups concurrently > >> and th= at neither catalogs nor filespaces share space on the same > >> disks. > >> > > >> > > >> >Regards, > >> >Richard Schuh > >> > > >> > > >> > > >> > > >> > >> I've been doing just that for 4 years. My "SFS1" and "SFS2" > >> are not only= > >> > >> not on the same disks, they're on two different z/VM systems in an > >> ISFC = > >> > >> collection. > >> ========================= > ========================== > ======================= >
