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Backup requirements specification
Remote Sites A/D
NAS emulations required
Server 1 – Filesystem 1, 100 GB, spread across 3 mount points
Server 2 – SQL data, 100GB
Server 3 – Filesystem 2, 100GB, spread across 2 mount points
Server 4 –- Special App Data , 100GB
Rotation Scheme – Weekly Fulls, 10% Incrementals during week, Keep 4 weeks Fulls and 1 monthly backup
12 hour backup window
Remote sites B/C
iSCSI VTL emulations required
Server 1– Filesystem, 200 GB, spread across 2 mount points C,D
Server 2 – SQL data, 200GB
Server 3 – Special App data, 200GB
Rotation Scheme – Weekly Fulls, 10% Incrementals during week, Keep 4 weeks Fulls and 1 monthly backup
12 hour backup window
Data Center E
Fibre Channel VTL emulations required for local backups
Server 1 - 500GB Exchange => Lib 1 - 4 backup streams
Server 2 - 500GB Special App => Lib 2 – 1 backup stream
Rotation Scheme – 500GB Daily Full, retained for 1 month.
12 hour backup window
Replication target for sites A, B, C, D (this means we have to size for replication capacity AND local backups on
Site E)
Monthly archive required at Site E from D2D to Physical Tape
One of the key parameters in sizing a solution such as this is trying to estimate the daily block level change rate
for data in each backup job. In this example we will use the default value of 2% in the HP StorageWorks sizing
tool. http://h30144.www3.hp.com/SWDSizerWeb/default.htm