IBM E16RMLL-I - Tivoli Storage Manager, Implementation Manual

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Chapter 15. Performance considerations
487
150 Opening data connection for 500MBFile.
226 Transfer complete.
ftp: 536801936 bytes sent in 52.09Seconds 10304.49Kbytes/sec.
ftp> get 500MBFile
200 PORT command successful.
150 Opening data connection for 500MBFile (524288000 bytes).
226 Transfer complete.
ftp: 536801936 bytes received in 57.13Seconds 9396.97Kbytes/sec.
Now back up the same file from your client machine to the Tivoli Storage
Manager server, as shown in Example 15-7.
Example 15-7 Backup of a 500 MB test file
tsm> sel 500MBFile
Selective Backup function invoked.
Normal File--> 524,288,000 /home/root/500MBFile [Sent]
Selective Backup processing of '/home/root/500MBFile' finished without failure.
Total number of objects inspected: 1
Total number of objects backed up: 1
Total number of objects updated: 0
Total number of objects rebound: 0
Total number of objects deleted: 0
Total number of objects expired: 0
Total number of objects failed: 0
Total number of bytes transferred: 500.02 MB
Data transfer time: 43.59 sec
Network data transfer rate: 11,745.37 KB/sec
Aggregate data transfer rate: 11,115.00 KB/sec
Objects compressed by: 0%
Elapsed processing time: 00:00:46
So the time taken to complete the backup for this single object (46 seconds) is
close to the time it took to transfer the file using FTP (57.13 seconds). That is
good. Now check the restore numbers, as shown in Example 15-8.
Example 15-8 Restore of a 500 MB test file
Restore function invoked.
Restoring 524,288,000 /home/root/500MBFile [Done]
Restore processing finished.
Total number of objects restored: 1
Total number of objects failed: 0
Total number of bytes transferred: 500.02 MB