[smartmontools-support] Issues with scttemp

[Manfred S. <man...@gm...>]

List, Christian,

I tried the new scttemp feature of smartctl, and had some issues.
On two of my disks, I have (with CVS from yesterday)

SCT capabilities:              (0x003f) SCT Status supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

but when I try to query, I get

# ./smartctl -l scttemp /dev/hda
smartctl version 5.38 [i686-suse-linux] Copyright (C) 2002-7 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
Error Write SCT Data Table command failed: Invalid argument


However, reading sts works:
# ./smartctl -l scttempsts /dev/hda
smartctl version 5.38 [i686-suse-linux] Copyright (C) 2002-7 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SCT Status Version:                  2
SCT Version (vendor specific):       258 (0x0102)
SCT Support Level:                   1
Device State:                        SMART Off-line Data Collection executing in background (4)
Current Temperature:                    39 Celsius
Power Cycle Min/Max Temperature:      0/48 Celsius
Lifetime    Min/Max Temperature:      0/48 Celsius
Under/Over Temperature Limit Count:   0/0


And hist fails:
# ./smartctl -l scttemphist /dev/hda
smartctl version 5.38 [i686-suse-linux] Copyright (C) 2002-7 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
Error Write SCT Data Table command failed: Invalid argument



So I think contents of scttempsts should be printed out when
querying scttemp, even when scttemphist fails.

Both disks are driven by linux IDE driver (2.6.16), could there be 
a problem with this?


On other disks, connected via libata (also 2.6.16), everything 
works (they have no SCT Feature Control Support however):

SCT capabilities:              (0x0021) SCT Status supported.
                                        SCT Data Table supported.


# ./smartctl -l scttemp /dev/sda
smartctl version 5.38 [i686-suse-linux] Copyright (C) 2002-7 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SCT Status Version:                  2
SCT Version (vendor specific):       1 (0x0001)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    30 Celsius
Power Cycle Min/Max Temperature:      0/33 Celsius
Lifetime    Min/Max Temperature:      0/85 Celsius
Under/Over Temperature Limit Count:   0/0
SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/60 Celsius
Min/Max Temperature Limit:            0/60 Celsius
Temperature History Size (Index):    478 (477)
Error invalid Temperature History Size or Index


Note however the ridiculous max temperature of 85 degrees.
I can almost guarantee that this disk has never seen temperatures
over 35 degrees (and Under/Over count is 0/0). This is a Maxtor 7L300S0.


Regards,
Manfred
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