This reminds me of WDSF/VM (ADSM/TSM's predecessor)
At that time there was no copypool capability.
I wracked my brains out thinking of a scheme where every time a tape
was mounted for write mode I would queue up a tape to tape copy job
to 'clone' it. (VM's PROPLOG would make it easy and possible.)
It was crazy. The possiblity of copying the tapes in the
wrong direction was there since they basically had to have the same IBM
Standard Label ensuring that if an opeator could mount them wrong it will
happen!!
I quickly forgot this insanity when I heard COPYPOOL capability was
coming.
Any problem's 'solvable' with enough money. Or as I like to say:
"Never ask an IBM salesman if something is possible,
instead ask him how much it will cost you"
You could setup highspeed connection to a offsite media and do
collocated copypools if non-collocated, ship off each day, isn't good
enough.
... joe.f.
Joseph A Faracchio, Systems Programmer, UC Berkeley
Private mail on any topic should be directed to :
joef AT socrates.berkeley DOT edu
On Tue, 1 May 2001, Lindsay Morris wrote:
> I don't think there's a way. I did a competitive evaluation of ADSM vs
> Harbor, a mainframe-based storage manager.
> Harbor did have the nice feature that it could make a copy tape on the fly.
> But I looked hard for a way to do that in ADSM, and at the time, there was
> none. (Though using a disk storage pool gets you similar functionality,
> i.e., you don't have to back the client up twice to get your copy...)
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Alex Paschal
> Sent: Tuesday, May 01, 2001 5:18 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Can I send one file to two pools?
>
>
> I've actually wondered about this. I've been told that in the mainframe
> world, they are able to make two copies of the same file at the same time,
> i.e., mount two tapes, and stream the file off of disk to both tape drives.
> I'm told this incurs quite a bit less than the 2x overhead you would
> normally expect from making two copies. Does anybody know of a way to get
> ADSM (or even just AIX) to do that?
>
> Alex Paschal
> Storage Administrator
> Freightliner, LLC
> (503) 745-6850 phone/vmail
>
> -----Original Message-----
> From: Joe Faracchio [mailto:brother AT SOCRATES.BERKELEY DOT EDU]
> Sent: Tuesday, May 01, 2001 1:38 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Can I send one file to two pools?
>
>
> Did you at all consider COPYPOOLs? Or are you unaware of them?
>
> Copypools were made for DR. Just setup a rotational plan to send
> tapes out as the fill up and reclam on weekends all the ones that get too
> fragemented during the week.
>
> Call me if you liked to here what we do.
>
> On the other hand if you need something more 'archival' in nature then use
> backupsets.
>
> or both if you need both!
>
> joe.f.
>
> Joseph A Faracchio, Systems Programmer, UC Berkeley
> Private mail on any topic should be directed to :
> joef AT socrates.berkeley DOT edu
>
> On Tue, 1 May 2001, Adams, Tracy wrote:
>
> > I want to send the file to one pool for retention based on the data, but
> he
> > second copy I want for DR retention on a five day cycle.
> >
> > This is all coming down to DR and hot site recovery... I am trying to ask
> > the questions simply instead of immediately broaching the $1,000,000
> > question of "how do you handle DR?"
> >
> > Thanks,
> >
> > Tracy
> >
> > -----Original Message-----
> > From: Richard Sims [mailto:rbs AT BU DOT EDU]
> > Sent: Tuesday, May 01, 2001 2:25 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: Can I send one file to two pools?
> >
> >
> > >Anybody know a clever way to do this?
> >
> > One sorta way: Caching, in a storage pool hierarchy.
> > Otherwise: Backup Stgpool.
> > But I think we'd like to hear what your requirements are
> > to better advise.
> >
> > Richard Sims, BU
> >
>
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