AWS 95: A/UX 3.1 and sar -d Not Implemented (9/95)

I have an Apple Workgroup Server (AWS) 95 with A/UX 3.1, and I'm trying to use the sar command with the -d option. However, the -d option does not work and I cannot find it in the man pages.

How do I use "sar -d", or if it's not available how do I monitor disk activity in a similar fashion?
The -d option, of the sar command, does not appear to have been implemented in A/UX 3.1.x on the AWS 95. Although the -d option did not generate any error messages, it returned nothing. For example, "sar -d 1 10" returned the time stamp every second 10 times.

You can try to use the -b and/or the -w option to monitor the block device buffering and swapping activities. For example,

sar -b 1 1000
sar -w 1 1000

These two options are close to monitoring the disk activity you are looking for. For tuned performance, the system reports should be 100% of buffer caches and 0% for swapping activity.


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Published Date: Feb 19, 2012