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15.16 Save and Restore Scaling using 571E IOAs and U320 15K DASD units to a 3580
Ultrium 3 Tape Drive.
A 570 8 way System i was used for the following tests. A user ASP was created with the number of
DASD listed in each test . The workload data was then saved to the tape drive , deleted from the system
and restored to the user ASP. These charts are very specific to the new IOAs and U320 capable DASD
available. For more information on the IOAs and DASD see Chapter 14 of this guide.
IBM i 6.1 Performance Capabilities Reference - January/April 2008
© Copyright IBM Corp. 2008 Chapter 15. Save/Restore Performance 260
Large File Save
0
100
200
300
400
500
600
6 D
AS
D
12
DASD
18 DA
S
D
24 DA
SD
3
0
DASD
36 DA
S
D
4
2
DASD
4
8
DASD
54
DASD
60 DA
S
D
66
DASD
72 DASD
78 DA
S
D
8
4
D
A
SD
9
0
DASD
GB/HR
RAID5 SAVE RAID6 SAVE MIRRORING SAVE
Large File Restore
0
100
200
300
400
500
600
6
D
AS
D
12 DASD
18 DA
S
D
2
4
D
A
SD
30 DA
S
D
36 DA
S
D
4
2
D
A
SD
4
8
DASD
54 DA
SD
6
0
DASD
66
DASD
7
2
D
A
SD
7
8
DASD
84
DASD
90 DA
S
D
GB/HR
RAID5 RESTORE RAID6 RESTORE MIRRORING RESTORE