Intel 170 Servers, AS/400 RISC Server, 7xx Servers manual 250

Tape Backup Performance - Restores

9406-MMA-4w ay Encrypted ASP RSTLIBBRM NO Softw are Encryption

9406-MMA-4w ay Encrypted ASP RSTLIBBRM With Softw are Encryption

9406-MMA-4w ay NON Encrypted ASP RSTLIBBRM NO Softw are Encryption

9406-MMA-4w ay NON Encrypted ASP RSTLIBBRM With Softw are Encryption

9406-570-4w ay NON Encrypted ASP RSTLIBBRM NO Softw are Encryption 9406-570-4w ay NON Encrypted ASP RSTLIBBRM With Softw are Encryption

	300
	250
GB/HR	200
	150
	100
	50
	0

1 GB Source File 12 GB User Mix 64 GB Large File 320 GB Large File

CPU Utilization during Restores

9406-MMA-4w ay %CPU Used Encrypted ASP RSTLIBBRM NO Softw are Encryption

9406-MMA-4w ay %CPU Used Encrypted ASP RSTLIBBRM With Softw are Encryption

9406-MMA-4w ay %CPU Used NON Encrypted ASP RSTLIBBRM NO Softw are Encryption

9406-MMA-4w ay %CPU Used NON Encrypted ASP RSTLIBBRM With Softw are Encryption

9406-570-4w ay %CPU Used NON Encrypted ASP RSTLIBBRM NO Softw are Encryption 9406-570-4w ay %CPU Used NON Encrypted ASP RSTLIBBRM With Softw are Encryption

20

%CPU Used

15

10

5

0

1 GB Source File 12 GB User Mix 64 GB Large File 320 GB Large File

Performance will be limited to the native drive rates (shown in table 15.1.1) because encrypted data blocks have a very low compaction ratio.

IBM i 6.1 Performance Capabilities Reference - January/April 2008
© Copyright IBM Corp. 2008	Chapter 15. Save/Restore Performance	264