From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Reimer >Suppose I've a storage pool called tapepool and a copy storage pool called >disaster-recovery, both sequencial storage pools. After some data migrated >to the tapepool storage pool a BACKUP STGPOOL is executed to copy this >data to disaster-recovery. Some time later, new data are migrated to the >tapepool again and I would like to know what will happen when the second >BACKUP STGPOOL will be executed. > >Will TSM ask the last disaster-recovery tape volume and extend it? Or will >TSM ask another tape scracth volume to disaster-recovery and fill it with >only the new files that were last migrated to tapepool?
The BACKUP STGPOOL command is essentially a one-way synchronization of files from the primary pool to the copy pool. If a file exists in the primary pool but does not exist in the copy pool, the BACKUP STGPOOL command makes that copy; if a file exists in both pools, no copy is made. (There is no need for synchronization in the other direction. When a file is deleted and/or expired from a primary pool, the copy of that file in the copy pool is also automatically deleted and/or expired.) -- Mark Stapleton
