[smartmontools-support] No ETA on SAS drive, when starting a smart test

[Billy Crook]

I'm very used to seeing an Estimated time required to complete a test when
I start a test.

I'm trying to automate hdd testing with a script that uses smartctl, and I
would like it to wait until testing is done before starting the next test.
What's the best way to do that?

I've been screen scraping the output for a number of minutes or seconds
that the test will take.  But this drive (The first SAS one in a while, as
normally im validating SATA drives) does't give a time.

sdl and sdn are normal.  sdm is the oddball below

# cat  /tmp/sdl.smart.tshort.out
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.18.0-80.el8.x86_64] (local
build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in
off-line mode".
Drive command "Execute SMART Short self-test routine immediately in
off-line mode" successful.
Testing has begun.
Please wait 1 minutes for test to complete.
Test will complete after Sun Nov 24 22:24:59 2019

Use smartctl -X to abort test.
[root at UR ~]# cat  /tmp/sdn.smart.tshort.out
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.18.0-80.el8.x86_64] (local
build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in
off-line mode".
Drive command "Execute SMART Short self-test routine immediately in
off-line mode" successful.
Testing has begun.
Please wait 1 minutes for test to complete.
Test will complete after Tue Nov 26 02:29:30 2019

Use smartctl -X to abort test.

But I just found a drive that doesn't show me any time eta when I start a
short test.

[root at UR ~]# smartctl -t short /dev/sdm
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.18.0-80.el8.x86_64] (local
build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

Short Background Self Test has begun
Use smartctl -X to abort test
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