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我们可以自动等待 smartmontools/smartctl 所需的时间吗？

tag-icon • tag-icon smartctl smartmontools
我们可以自动等待 smartmontools/smartctl 所需的时间吗？ 
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，我只是想自动化这一点。

答案1

有两种可能性。smartctl -c将列出设备的功能，其中包括诸如

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

因此，您只需阅读这些内容，然后按照需要的短时间或长时间睡眠即可。

其次，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，并等待剩余时间返回到 0，并且其他字段都有其最终值：

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.

答案2

它不漂亮，但这似乎有效。可以轻松修改以处理任意数量的磁盘。欢迎模组。

#!/usr/bin/zsh
#set -x

outputmsg () { echo -e "\e[35;1m$@\e[0m"; }
infomsg ()   { echo -e "\e[36;1m$@\e[0m"; }

smartctl -X /dev/sda &> /dev/null
wait_time_greatest=$( smartctl -t short /dev/sda | grep 'Please wait' | sed 's,^\(Please wait \)\([[:digit:]]*\)\(.*\),\2,' )

smartctl -X /dev/sdb &> /dev/null
wait_time_new=$( smartctl -t short /dev/sdb | grep 'Please wait' | sed 's,^\(Please wait \)\([[:digit:]]*\)\(.*\),\2,' )

[ "$wait_time_new" -gt "$wait_time_greatest" ] && wait_time_greatest="$wait_time_new"

wait_time_greatest=$((wait_time_greatest + 1)) #To be safe?

infomsg "\nWe'll be done in $wait_time_greatest minutes ...\n"
sleep "$[wait_time_greatest]m"

outputmsg "Disk sda:"   # Strange that the report doesn't contain the disk ID.
echo -e \e[0m       # Must reset the color!
smartctl -H /dev/sda

outputmsg "Disk sdb:"
echo -e \e[0m       # Must reset the color!
smartctl -H /dev/sdb

# Because smartctl seems to screw this up and it needs to be redone:
hdparm -S60y /dev/sda
hdparm -S60y /dev/sdb

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