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" <[email protected]> wrote on 07/28/2017 09:13:57 AM: > From: "Golbin, Mikhail" <[email protected]> > To: [email protected] > Date: 07/28/2017 09:15 AM > Subject: Re: One to many replication in Spectrum Protect 8.1 > Sent by: "ADSM: Dist Stor Manager" <[email protected]> > > 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 <[email protected]> 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" <[email protected]> wrote on 07/21/2017 > > 10:41:51 AM: > > > > > From: "Golbin, Mikhail" <[email protected]> > > > To: [email protected] > > > Date: 07/21/2017 10:42 AM > > > Subject: Re: One to many replication in Spectrum Protect 8.1 > > > Sent by: "ADSM: Dist Stor Manager" <[email protected]> > > > > > > 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 > > <[email protected]> > > > 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 <[email protected]> > > 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" <[email protected]> wrote on 07/20/2017 > > > >> 11:07:28 AM: > > > >> > > > >> > From: "Golbin, Mikhail" <[email protected]> > > > >> > To: [email protected] > > > >> > Date: 07/20/2017 11:12 AM > > > >> > Subject: One to many replication in Spectrum Protect 8.1 > > > >> > Sent by: "ADSM: Dist Stor Manager" <[email protected]> > > > >> > > > > >> > 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 >
