Intel 170 Servers, AS/400 RISC Server, 7xx Servers manual Source File 1GB

15.20 5XX Tape Device Rates with 571E & 571F Storage IOAs and 4327 (U320) Disk Units

Save/restore rates of 3580 Ultrium 3 (2Gb and 4Gb Fiber Channel) tape devices and of virtual tape devices were measured on a 570 8-way system with 571E and 571F storage adapters and 714 type 4327 70GB (U320) disk units. Customer performance will be dependent on overall system resources and how well those resources match the maximum capabilities of the device. See other sections in this guide about memory, CPU and DASD.

Table 15.20.1

Measurements in (GB/HR)

Workload data Saved and Restored from User ASP 2.

2780 Storage
IOAs	571E/571F Storage IOAs
4326 35GB	4327 70GB (U320) DASD
(U160) DASD
(Data from table
15.18.1)

Workload		3580 Ultrium 3 5704 2Gb Fiber Adapter	3580 Ultrium 3 5704 2Gb Fiber Adapter	3580 Ultrium 3 5761 4Gb Fiber Adapter	3580 Ultrium 4 5761 4Gb Fiber Adapter
S = Save						Virtual Tape Drive
R = Restore
Release Measurements were done		iV5R4	iV5R4	iV5R4	iV5R4	iV5R4
Source File 1GB	S	22	95	110	55	110
	R	29	40	40	26	40
User Mix 12GB	S	200	290	290	295	345
	R	150	175	175	182	195
Large File 64GB	S	500	510	585	650	1380
	R	500	550	785	760	1230
Large File 320GB	S	525	525	635	650	1420
	R	510	550	785	760	1240
1 Directory	S	65	80	80	90	80
Many Objects	R	50	60	60	45	65
Many Directories	S	50	55	60	65	65
Many Objects	R	30	30	30	25	30
Domino Mail Files	S	410	440	450	550	1410
	R	420	460	460	600	1190
Network Storage Space	S	350	355	410	425	1300
	R	380	405	460	525	1230

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 15. Save/Restore Performance	267