Did you tried to move the drive to any other location like 1.19 or 1.20 ? Are you facing same issue?
I checked quickly and there were some known issue identified in old code and fixed in TS250R021 as below,
"
There was a discrepancy in the state of the drives when Available, Global Spare, and vdisk drive spindown is enabled.
Two drives were specified as global spares for a RAID6 LUN, but only one of the drives was actually assigned.
"
It's always recommended to upgrade the system to up to date firmware otherwise it's very difficult to find the old issues matching with which firmware fix. Please find the firmware history from which is installed now,
Firmware version Release date
-------------------------------------
TS252P005 All Feb 2017
TS252P001 All March 2016
TS252R007 All June 2015
TS251P006 All Sept 2014
TS251P005 All July 2014
TS251P004 All June 2014
TS251P003 All June 2014
TS251P002 All May 2014
TS251R004 All March 2014
TS250P003 All September 2013
TS250P002 All July 2013
TS250R023 All April 2013
TS250R021 All March 2013
TS240P004 All November 2012
Link to get firmware,
www.hpe.com/storage/MSAFirmware
Hope this helps!
Regards
Subhajit
I am an HPE employee
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