7K6000 - SMART long test and firmware updarte

Hi to all.
I have 3 2TB 7K6000 SAS disks, some questions:

  1. 1 SMART long test seems to be stuck from many days:
    SMART Self-test log
    Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ]
    Description number (hours)

1 Background short Completed - 121 - [- - -]

2 Background long Self test in progress … - NOW - [- - -]

Look at item #2

  1. seems to be impossible to abort a running test:

smartctl -X /dev/sdd

smartctl 6.4 2014-09-29 r3990 [x86_64-linux-2.6.32-5-amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

Abort self test failed [unsupported field in scsi command]

  1. How can I upgrade the firmware version, from Linux ? I’ve not found any firmware release.