IBM 6C4 - Manual (Page 158)

Memory Exerciser
The memory exercisers are labeled mem x , where x is a number for the exerciser.
Multiple exercisers can be active.
The memory exerciser requests as many memory buffers as possible from AIX. The
exerciser then fills the memory buffers with specified bit patterns, then reads and
compares the memory buffers to the specified bit patterns.
On systems with multiple processors, a process is started for each processor. The free
memory space is split evenly between the available processors, thus reducing the time
required to exercise all of the memory.
Running this service aid requires 128 KB of free space in the /etc/lpp/diagnostics/data
file.
Tape Exerciser
The tape exerciser is labeled rmt x , where x is the number of a specific device. The
exerciser performs read, write, and compare operations using known data patterns. A
tape device and Test Diagnostic Cartridge are required to run this exerciser. The actual
Test Diagnostics Cartridge depends upon the specific tape device being tested. The
exerciser automatically rewinds the tape. Test Requirements are:
v Tape device
v Test Diagnostic Cartridge (The part number depends upon the tape device.)
Diskette Exerciser
The diskette exerciser is labeled fd x , where x is the number of a specific device. The
exerciser performs read, write, and compare operations using known data patterns. A
scratch diskette is required to run this exerciser, data on the scratch diskette is
destroyed. Test requirements are:
v Diskette device
v Scratch diskette (data on diskette is destroyed)
CD-ROM Exerciser
The CD-ROM exerciser is labeled cd x , where x is the number of a specific device. The
exerciser performs read and compare operations using known data patterns. A
CD-ROM device and a Test Disc are required to run this exerciser. Test requirements
are:
v CD-ROM device
v Test Disc part number 81F8902
140 pSeries 630 Model 6C4 and Model 6E4 User’s Guide