From: Joerg S. <jo...@so...> - 2009-09-20 11:11:11
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Hello all, found something in smartctl. The output of "smartctl -l selective /dev/sda" shows a wrong remaining percentage for a running selective self test, e.g. SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 100000000 Self_test_in_progress [10% left] (7977798-8043333) The value runs down quickly to 10% when there are actually more than 90% left and stays at this value for the remainder of the test. drive: ATA-8: WDC WD3200AAKS-00L6A0, 01.03E01, max UDMA/133 controller: Mass storage controller: Promise Technology, Inc. PDC20318 (SATA150 TX4) (rev 02) Not a big issue. Best regards -jo -- -rw-r--r-- 1 jo users 62 2009-09-20 11:44 /home/jo/.signature |
From: Christian F. <Chr...@t-...> - 2009-09-21 20:14:52
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Joerg Sommrey wrote: > The output of "smartctl -l selective /dev/sda" shows a wrong remaining > percentage for a running selective self test, e.g. > > SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS > 1 0 100000000 Self_test_in_progress [10% left] (7977798-8043333) > > The value runs down quickly to 10% when there are actually more than 90% > left and stays at this value for the remainder of the test. > > Smartctl does not calculate the '% left' value. It simply uses bits 0:3 (1=10%,..., 9=90%) of the 'Self-test execution status byte' which is part of the SMART data read from the drive. So this is actually a drive firmware issue :-) Cheers, Christian |
From: Joerg S. <jo...@so...> - 2009-09-21 20:24:37
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On Mon, Sep 21, 2009 at 10:14:14PM +0200, Christian Franke wrote: > Joerg Sommrey wrote: >> The output of "smartctl -l selective /dev/sda" shows a wrong remaining >> percentage for a running selective self test, e.g. >> >> SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS >> 1 0 100000000 Self_test_in_progress [10% left] (7977798-8043333) >> >> The value runs down quickly to 10% when there are actually more than 90% >> left and stays at this value for the remainder of the test. >> >> > > Smartctl does not calculate the '% left' value. It simply uses bits 0:3 > (1=10%,..., 9=90%) of the 'Self-test execution status byte' which is > part of the SMART data read from the drive. > > So this is actually a drive firmware issue :-) As I said before: Not a big issue. :-) Thanks for clarifying. -jo -- -rw-r--r-- 1 jo users 62 2009-09-20 11:44 /home/jo/.signature |
From: Mario 'B. H. <Mario.Holbe@TU-Ilmenau.DE> - 2009-09-22 15:36:09
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Joerg Sommrey <jo...@so...> wrote: > The value runs down quickly to 10% when there are actually more than 90% > left and stays at this value for the remainder of the test. 90% left of what? Who told you the 10% left were percentage of time total? regards Mario -- Tower: "Say fuelstate." Pilot: "Fuelstate." Tower: "Say again." Pilot: "Again." Tower: "Arghl, give me your fuel!" Pilot: "Sorry, need it by myself..." |