Unable to retrieve SAR for all the devices

[Siddhesh]

I have 9 disk device files configured on my hpux 11i server. But when I run sar -d command many times it gives me report for the 6 or 8 devices only and sometimes it gives me report for all the devices. Even this is not working for sa1 which I am running through cron. I could access file systems mounted on those device files at the same time. So, nothing wrong in accessing those device files also. I am attaching the lvmtab and output of sar through cron.

[T G Manikandan]

Sar reports only devices on which there was some activity.

You can try increasing the interval period in sar


Thanks

[Rajesh G. Ghone]

Hi,
Can you point out which Disks it is not showing
& then can you try giving DD command on those Disks to check weather all the sectors of your Disks are proper.

Regards,
Rajesh G.

[twang]

"sar -d" report activity for each block device. It only report the devices that had activity during the last interval. If no devices were active, it will report a blank line.