IBM E16RMLL-I - Tivoli Storage Manager, Руководство по внедрению

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IBM Tivoli Storage Manager Implementation Guide
image, and backup set requirements that should be suitable for a real-life
situation. In any case, you must evaluate whether all such requirements are
really important in your case and decide whether to implement them.
Complete Table 2-1 using a column for data from each client being considered
for this Tivoli Storage Manager implementation. Analyzing client data helps you
make decisions about the Tivoli Storage Manager server environment. The
information collected in the table is used for node definitions and for calculating
database, recovery log, and storage pool sizes.
This table is presented in a portrait orientation in the book due to space
considerations. If you have a large number of nodes or use a spreadsheet
version, you may find the table more workable by transposing it to a landscape
orientation.
Table 2-1 IBM Tivoli Storage Manager Client requirements worksheet
Client Type1
Workstation Client Type 2
Database server
Number of similar clients 20 4
ClientName WORKSTN1..20 DBSERV1..4
Contact information John at x1645
Remote users Nick at x3761
UNIX and AIX
Operating system Windows XP UNIX servers
Total storage available (GB) 80 150
Total storage used (GB) 60 100
Total data changed per backup (GB) 6 = 10% 100 = 100%
Number of files or total GB to be backed up 3,000 * 20 = 60,000 2,000 * 4 = 8,000
Number of backup versions to be kept 2 7
Data compression .5 .66
Backup window times 17:00–23:00 22:00–04:00
Number of hours to complete backups 14 6
Total recovery time frame per server 48 hours 8 hours
Tivoli Storage Manager restore time 24 hours 4 hours
Average GB copied per archive 10 * 20 = 200 4* 20 = 80
Number of files archived 4,000 * 20 = 80,000 3,000 * 4 = 12,000