StorageTek Lifecycle Director DB2 Manager 312564001 User Manual

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90 
DB2 Manager User Guide 
 StorageTek 
Proprietary 
administration facility.  The backup duplex copy is created at the 
same time as the backup copy. 
Each copy will contain a single standard-labeled dataset.  The contents of 
each copy will be identical. The following dataset naming standards are used 
by Archive Manager to identify each copy in an Archive Manager tape 
database: 
‘A’ copy: 
‘hlq.Gnnnnn’ 
‘B’ copy: 
‘hlq.Bs.Gnnnnn’ 
‘C’ copy: 
‘hlq.Cs.Gnnnnn’ 
‘D’ copy: 
‘hlq.Ds.Gnnnnn’ 
 
where   ‘hlq’ is the high-level qualifier for system datasets, as defined 
during Archive Manager database definition processing (see 
“Define Archive Manager databases” on page 27). 
 
 
 ‘s’ is the storage level (0-7) 
 
and 
‘nnnnn’ is the sequence number of the dataset within the 
Archive Manager database. 
Objects are always written to storage level 0 when first migrated to tape.  
They may subsequently be moved to other storage levels via execution of the 
Archive Manager object management utility. 
Archive Manager also provides a facility (via its database administration 
process) to automatically control the tape cartridge devices to be used to 
create each copy during the object migration or backup process 
 
(eg) 
‘A’ copy to primary library location.  This copy of the database 
will be used for normal production access. 
‘B’ copy to offsite location.  This copy of the database will be 
used for disaster recovery purposes. 
‘C’ copy to alternate onsite location.  This copy of the database 
will be used for recovery after loss of an individual volume. 
This location may be in another library storage module, for 
automated recovery access, or on a free-standing device for 
eventual shelf storage. 
Note that if duplexing during archival is enabled for the Archive Manager 
database, then a duplex tape volume will be created concurrently with the 
primary tape volume during database update processing.   In some 
circumstances (e.g. if the duplex volume is created at a remote offsite 
location) it may not be necessary to execute the Archive Manager database 
backup utility.   Refer to the Archive Manager User Manual for full information 
on these considerations. 
Archive Manager database recovery