Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Administering a System: Managing Printers, Software, and Performance
Managing System Performance
Chapter 7734
Making Changes
• “Increasing the Number of nfsd Daemons” on page 734
• “Defragmenting an HFS File System” on page 734
• “Defragmenting a JFS File System” on page 643
• “Configurable Kernel Parameters” on page 736
Increasing the Number of nfsd Daemons
To increase the number of nfsds running on a server, do the following
steps:
Step 1. Edit /etc/rc.config.d/nfsconf, raising the value of NUM_NFSD; for
example:
NUM_NFSD=8
Step 2. Stop and restart the nfs.server script:
/sbin/init.d/nfs.server stop
/sbin/init.d/nfs.server start
Defragmenting an HFS File System
Defragmenting an HFS file system could improve throughput by
reducing disk seek time. In practice, though, most experts believe it will
usually make little or no difference to performance. You should do it only
if you have good reason to believe, or have received expert advice, that
your system will really benefit.
NOTE This applies only to HFS file systems. JFS file systems do need to be
defragmented regularly. See “Defragmenting a JFS File System” on
page 643.
You can defragment an HFS file system by backing it up to tape,
removing and recreating it, then recovering the data from the tape.