我们能自动等待smartmontools/smartctl所需的时间吗？

Question

Can we do something like this in a script (preferably zsh):

smartctl -t long /dev/sda
smartctl -t long /dev/sdb
smartctl -t long /dev/sdc

[Wait however long smartctl needs]

smartctl -H /dev/sda
smartctl -H /dev/sdb
smartctl -H /dev/sdc

很明显，我只是想把它自动化。

Answer 1

有两种可能性。smartctl -c将列出该设备的功能，其中包括如下行

Short self-test routine 
recommended polling time:      (   1) minutes.
Extended self-test routine
recommended polling time:      (  48) minutes.

因此，您可以简单地阅读这些内容，并在所需的短时间或长时间内进行睡眠。

第二，当测试正在进行时，相同的-c选项将列出任何测试的当前状态，例如：

Offline data collection status:  (0x03) Offline data collection activity
  is in progress.
Self-test execution status:      ( 247) Self-test routine in progress...
  70% of test remaining.
Total time to complete Offline 
data collection:    (   44) seconds.

因此，您可以每隔几分钟轮询一次，等待剩下的时间返回到0，其他字段有它们的最终值：

Offline data collection status:  (0x02) Offline data collection activity
  was completed without error.
Self-test execution status:      (   0) The previous self-test routine completed
  without error or no self-test has ever 
  been run.
Total time to complete Offline 
data collection:    (    0) seconds.