AIX PTF APAR

PTF
Program Temporary Fix. A temporary solution or by-pass of a problem diagnosed by IBM as resulting from a defect in a current unaltered release of the program. A report of a problem caused by a suspected defect in a current unaltered release of a program.

APAR
Authorized Program Analysis Report. A report of a problem caused by a suspected defect in a current unaltered release of a program.

nfs

/etc/hosts
/etc/exports
(/testnfs -rw,root=p630,access=p630)
mknfs -N
exportfs -a

/etc/hosts
mount host:/mp /mp

showmount -e host

http://www.l-penguin.idv.tw/article/nfs-automount.htm
Auto Mount
/etc/auto.master

Check CPU info at AIX

# pmcycles -m
Cpu 0 runs at 1500 MHz
Cpu 1 runs at 1500 MHz
Cpu 2 runs at 1500 MHz
Cpu 3 runs at 1500 MHz

# sar -u -P ALL 1 2

AIX erprp1 3 5 00C9565E4C00 02/03/06

System configuration: lcpu=4

Unix copy problem

There are too many levels of symbolic links to translate...

cp -prh (source) (destination)

where -h to solve symbolic copy problem

Inode usage

# find . -inum 688 -exec rm -i {} \;

HP-UX LVM problem

pvcreate -f /dev/rdsk/c9t0d7
pvcreate -f /dev/rdsk/c7t0d7
vgcreate ohredovg02 /dev/dsk/c9t0d7 /dev/dsk/c7t0d7

-f force creation!

Disks

As the number of Input-Output operations per second (IOPS) increases so does the latency of response from the disk. Fibre Channel (FC) and Serial Attached SCSI (SAS) disks deliver significantly more IOPS than Fibre Attached Technology Adapted (FATA) or Serial Advanced Technology Attachment (SATA) for the same latency penalty.
(Spindles)