[OpenAFS] cpu load

[sabah]

 Dear All,
          I have an AFS server running linux.
"
Linux version 2.4.18-3 (bhcompile@daffy.perf.redhat.com) (gcc version 2.96 
20000731 (Red Hat Linux 7.3 2.96-110)) #1 Thu Apr 18 07:37:53 EDT 2002
"
If one run "uptime" you get

uptime
  7:15pm  up 11:11,  2 users,  load average: 2.36, 2.59, 2.66

Most of the load used by:
 26 root      16   0     0    0     0 RW   32.0  0.0 161:09 raid1d
 27 root      15   0     0    0     0 DW   11.5  0.0  67:12 raid1syncd

 does anyone know how to get the load down please?

 Thanks,  Sabah.

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*     From Sabah Salih                                                *
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