ADSM-L

Re: [ADSM-L] One to many replication in Spectrum Protect 8.1

2017-07-31 09:20:56
Subject: Re: [ADSM-L] One to many replication in Spectrum Protect 8.1
From: Del Hoobler <hoobler AT US.IBM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 31 Jul 2017 09:19:42 -0400
Hi Mike,

The main concern is that these scenarios are not tested by IBM. There is a 
possibility that they could lead to issues around source/target syncing 
and reconciliation.



Del

----------------------------------------------------

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 07/28/2017 
09:13:57 AM:

> From: "Golbin, Mikhail" <mikhail.golbin AT ROCHE DOT COM>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 07/28/2017 09:15 AM
> Subject: Re: One to many replication in Spectrum Protect 8.1
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> 
> Hi Del,
> 
> I've been testing the script switching technique for the last week on 
our
> non prod system (TSM2) and it seems to be working well.
> Set REPLSERVer tsm1
> UPDate STGpool DIR_POOL_TSM2 PROTECTstgpool=DIR_POOL_TSM1
> protect stgpool DIR_POOL_TSM2 maxsessions=2 wait=yes
> replicate node DATAMOVER2 maxsessions=2 wait=yes
> 
> Set REPLSERVer tsm3
> UPDate STGpool DIR_POOL_TSM2 PROTECTstgpool=DIR_POOL_TSM3
> protect stgpool DIR_POOL_TSM2 maxsessions=2 wait=yes
> replicate node DATAMOVER2 maxsessions=2 wait=yes
> 
> Are there any technical reasons behind "IBM does not recommend the
> switching technique" statement?
> 
> Another thought came to my mind - circular replication -
> TSM1->TSM2->TSM3->TSM1 - I know this will double replication traffic 
over
> the WAN but will it be supported by IBM?
> 
> Thanks,
> Mike G
> 
> On Fri, Jul 21, 2017 at 11:15 AM, Del Hoobler <hoobler AT us.ibm DOT com> 
wrote:
> 
> > Hi Mikhail,
> >
> > IBM does not recommend the switching technique below.
> >
> > A few other ideas for creating a tertiary copy...
> >    - use disk-based replication (it's not integrated into Protect
> > replication... but could be done) and create a "consistency group" 
that
> > covers the the database DB (db, instance dir, other related parts) and 
the
> > storage pool
> >    - HADR (Example:
> > https://www.ibm.com/developerworks/community/blogs/storageneers/entry/
> > tsmptha?lang=en
> > )
> >
> > Check Youtube... there are a few presentations out there that talk 
about
> > it as well.
> >
> >
> > Del
> >
> > ----------------------------------------------------
> >
> >
> > "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 07/21/2017
> > 10:41:51 AM:
> >
> > > From: "Golbin, Mikhail" <mikhail.golbin AT ROCHE DOT COM>
> > > To: ADSM-L AT VM.MARIST DOT EDU
> > > Date: 07/21/2017 10:42 AM
> > > Subject: Re: One to many replication in Spectrum Protect 8.1
> > > Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> > >
> > > Will switching replication server as part of the maintenance script
> > work?
> > > Something along these lines:
> > > Set REPLSERVer tsm2
> > > UPDate STGpool DIR_POOL_TSM1 PROTECTstgpool=DIR_POOL_TSM2
> > > protect stgpool DIR_POOL_TSM1 maxsessions=2 wait=yes
> > > replicate node * maxsessions=2 wait=yes
> > >
> > > Set REPLSERVer tsm3
> > > UPDate STGpool DIR_POOL_TSM1 PROTECTstgpool=DIR_POOL_TSM3
> > > protect stgpool DIR_POOL_TSM1 maxsessions=2 wait=yes
> > > replicate node * maxsessions=2 wait=yes
> > >
> > >
> > >
> > > On Thu, Jul 20, 2017 at 1:36 PM, Mikhail Golbin
> > <mikhail.golbin AT roche DOT com>
> > > wrote:
> > >
> > > > Hi Del,
> > > >
> > > > We are all disk, no tape, so that is not an option.
> > > > Any possible workarounds?
> > > >
> > > > Thanks,
> > > > Mike G
> > > >
> > > > On Thu, Jul 20, 2017 at 12:48 PM, Del Hoobler <hoobler AT us.ibm DOT 
> > > > com>
> > wrote:
> > > >
> > > >> Hi Mikhail,
> > > >>
> > > >> One-to-many node replication is not currently supported. It is a
> > known
> > > >> requirement.
> > > >>
> > > >> One way to create two copies of your backup data stored in
> > > >> directory-container storage pools is to use PROTECT STGPOOL to a
> > second
> > > >> Spectrum Protect server and a PROTECT STGPOOL to tape.
> > > >>
> > > >> Del
> > > >>
> > > >> ----------------------------------------------------
> > > >>
> > > >>
> > > >> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 
07/20/2017
> > > >> 11:07:28 AM:
> > > >>
> > > >> > From: "Golbin, Mikhail" <mikhail.golbin AT ROCHE DOT COM>
> > > >> > To: ADSM-L AT VM.MARIST DOT EDU
> > > >> > Date: 07/20/2017 11:12 AM
> > > >> > Subject: One to many replication in Spectrum Protect 8.1
> > > >> > Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> > > >> >
> > > >> > Hi guys,
> > > >> >
> > > >> > I was wondering if anyone tried to replicate to more than one
> > server -
> > > >> we
> > > >> > would like to have one copy nearby and one offsite.
> > > >> > I was reading IBM presentation from almost couple years ago
> > discussing
> > > >> node
> > > >> > replication and directory pool replication in then brand new
> > Spectrum
> > > >> > Protect 7.1.3 -
> > > >> >
> > http://www.empalis.com/fileadmin/templates_empalis/PDFs/Events_2015/
> > > >> >
> > TSM_Symp_2015_Nachlese/02_TSM_Symp_2015_Nachlese_Node_Replication.pdf
> > > >> >
> > > >> > Towards the end of the presentation they talk about future
> > direction and
> > > >> on
> > > >> > page 26 about one-to-many replication. We have the latest 
Spectrum
> > > >> Protect
> > > >> > 8.1 and I can't find a way to do it.
> > > >> >
> > > >> > All suggestions and workarounds are greatly appreciated!
> > > >> >
> > > >> > Thanks,
> > > >> >
> > > >> > --
> > > >> > Mikhail Golbin
> > > >> > bus (908)635-5705
> > > >> > cell (908)210-3393
> > > >> > RMD IT Client Services
> > > >> >
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > Mikhail Golbin
> > > > bus (908)635-5705
> > > > cell (908)210-3393
> > > > RMD IT Client Services
> > > >
> > >
> > >
> > >
> > > --
> > > Mikhail Golbin
> > > bus (908)635-5705
> > > cell (908)210-3393
> > > RMD IT Client Services
> > >
> >
> 
> 
> 
> --
> Mikhail Golbin
> bus (908)635-5705
> cell (908)210-3393
> RMD IT Client Services
> 


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