What is the purpose of the smartd daemon?
A. It is a user space daemon used for reading smart cards and integrated circuit chips.
B. It attempts to automatically repair file systems upon a failed file system check.
C. It monitors process activity and helps the kernel decide which processes to kill when the kernel overcommits.
D. It monitors certain disk drives and attempts to predict when they will fail.
「smartd」這個守護行程(daemon)是為了要監控ATA和SCSI硬碟的S.M.A.R.T(自我監測、分析及報告技術，Self-Monitoring Analysis and Reporting Technology)。