An administrator attempted to run a sar -u report and received the following error： sar： 0551-201 Cannot open /var/adm/sa/sa12. Which of the following should be scheduled in adm’s crontab to enable sar reporting（）
- A、sar
- B、sa1
- C、vmo
- D、iostat
正确答案:B
答案解析:有
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