Managing NetBackup
189
5
+
(Files per Monthly Full Backups x Backups per Retention Period)
2. Substituting values from Table 4:
1000 files x 30 + 64,000 files x 12 = 798,000 files
Performing steps 1 and 2 for each class and adding the results together
shows that the total files for all classes is:
4,829,600 files
Multiplying the total number of files by the bytes in the average path length
and statistics (150 for this example) shows that the total amount of disk
space required for file paths is:
690.88 megabytes (1,048,576 bytes in a megabyte)
Adding 15 megabytes for error logs results in a final uncompressed catalog
space requirement of:
705.88 megabytes
Table 4 Example Reference Table for Catalog Requirements
Class
Schedule
Backup Type
Retention
Number of
Files
S1
Daily
Monthly
Incremental
Full
1 month
1 year
1000
64,000
S2
Daily
Monthly
Incremental
Full
1 month
1 year
1000
70,000
S3
Daily
Weekly
Monthly
Incremental
Full
Full
1 week
1 month
1 year
10,000
114,000
114,000
S4
Daily
Weekly
Monthly
Quarterly
Incremental
Full
Full
Full
1 week
1 month
3 months
Infinite
200
2000
2000
2000
WS1
Daily
Monthly
Incremental
Full
1 month
1 year
200
5600
NetBackup 3.2 System Administrator's Guide for Windows NT
NetBackup 3.2 System Administrator's Guide for Windows NT