I am not getting the data for AIX Disk IO in SSH or Telnet Mode
We use below command for getting disk IO stats in AIX :
iostat -d;echo '-----DISK_EXTENDED_STATS-----';iostat -d 1 3 > /tmp/amp_iostat.txt;sed 's/% tm_act/%tm_act/g' /tmp/amp_iostat.txt
When you execute iostat -d command you should get output as shown in screenshot.png attached below. If you get message like "Disk History Since Boot Not Available" instead of disk statistics, it means it is disabled. To check current status of iostat--> execute below command in your problematic AIX servers :
lsattr -E -l sys0 -a iostat
This should return output as shown in screenshot2.png attached below. If you get output like "iostat false Continuously maintain DISK I/O history True" or "iostat false Continuously maintain DISK I/O history False", then you need to enable iostat statistics collection. Please refer following page for doing the same:
https://www.ibm.com/developerworks/community/blogs/AIXDownUnder/entry/topas_reports_disk_busy_zero?lang=en
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