[mythtv-users] only on Sunday

Jay Harbeston (ISeePeople) jharbestonus at gmail.com
Mon Dec 10 14:57:15 UTC 2018


You may need more air circulation on the case holding the drives. By themselves the drives would not get that hot.

Regards,

> On Dec 10, 2018, at 4:46 AM, Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:
> 
> On Sun, 9 Dec 2018 22:42:34 -0500, you wrote:
> 
>> Normal use is 5 or 6 hours in the evening recording and watching
>> recordings, on Sunday I start recording NFL at 1 and at some point
>> thereafter my disk "storage2" drops out and reconnects. I've had it
>> connected to different sata ports on the mobo but always "storage2" not the
>> other two drives "storage1&3". A replacement mobo is on the way, but does
>> this log indicate that it will solve the problem?
>> 
>> http://paste.ubuntu.com/p/Rrnd3VmsNT/
>> 
>> the disk dropped in and out around 7 thru 10 pm
>> TIA  Daryl
> 
> Even when /dev/sdb does connect, it only connects at 1.5 Mbit/s, the
> slowest possible SATA speed.  Which is too slow for a modern drive to
> perform properly.  When it connects, it has lots of retries first.  So
> my first guess from those logs would be a bad SATA cable - those
> errors look similar to what I have had with a bad cable.  Try swapping
> that drive to the SATA and power cable you are using for one of the
> good drives and see if that helps.  If the problem stays with the
> cables, you know what the problem is.  If it stays with the drive,
> then it is likely faulty electronics on the drive.
> 
> This does not look good either:
> 
> Device: /dev/sdc [SAT], SMART Usage Attribute: 194 Temperature_Celsius
> changed from 253 to 171
> 
> If those numbers are real, then that hard drive is so far over its
> maximum temperature limit that it is likely dead - it is way over the
> safe non-operational temperature for a hard drive.  I would expect the
> bearings to seize at that sort of temperature.  But before believing
> those temperature numbers, try running this command:
> 
> sudo update-smart-drivedb
> 
> to get the latest smartd database.  If that drive is fairly new, it
> may be that it is not in the existing database and SMART is not
> reading its temperature correctly.
> 
> And then there are these too:
> 
> Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius
> changed from 74 to 66
> 
> The maximum temperature specifications for drives varies, usually 60,
> 65 or 70 degrees Celsius, so it might be within specifications, just.
> But it is not a good idea to be running a drive that hot - you would
> expect it to have a shorter lifetime.  You really want all the drive
> temperatures to stay well below 50 degrees Celsius for most of the
> life of the drive.
> 
> 
> Here are all the temperature reports I filtered out of the log:
> 
> [P:\]grep "/dev/sda" log.txt
> Dec  9 13:20:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 74 to 66
> Dec  9 13:50:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 66 to 64
> Dec  9 14:20:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 64 to 63
> Dec  9 14:50:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 63 to 62
> Dec  9 15:20:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 62 to 61
> Dec  9 17:20:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 61 to 62
> Dec  9 19:20:52 trieli smartd[875]: Device: /dev/sda [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 62 to 63
> 
> [P:\]grep "/dev/sdb" log.txt | grep 194
> Dec  9 13:20:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 22 to 37
> Dec  9 13:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 37 to 40
> Dec  9 14:20:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 40 to 42
> Dec  9 14:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 43
> Dec  9 15:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 43 to 44
> Dec  9 16:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 44 to 43
> Dec  9 17:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 43 to 42
> Dec  9 18:20:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 43
> Dec  9 18:50:52 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 43 to 42
> Dec  9 19:50:53 trieli smartd[875]: Device: /dev/sdb [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 41
> 
> [P:\]grep "/dev/sdc" log.txt
> Dec  9 13:20:53 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 253 to 171
> Dec  9 13:50:52 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 171 to 162
> Dec  9 14:20:52 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 162 to 157
> Dec  9 14:50:53 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 157 to 153
> Dec  9 15:20:52 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 153 to 150
> Dec  9 17:20:52 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 150 to 153
> Dec  9 19:20:53 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 153 to 157
> Dec  9 21:20:53 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 157 to 153
> Dec  9 21:50:53 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 153 to 150
> Dec  9 22:20:52 trieli smartd[875]: Device: /dev/sdc [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 150 to 153
> 
> [P:\]grep "/dev/sdd" log.txt | grep 194
> Dec  9 13:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 22 to 38
> Dec  9 13:50:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 38 to 40
> Dec  9 14:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 40 to 41
> Dec  9 14:50:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 41 to 42
> Dec  9 15:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 44
> Dec  9 16:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 44 to 43
> Dec  9 17:50:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 43 to 42
> Dec  9 18:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 43
> Dec  9 18:50:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 43 to 42
> Dec  9 20:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 41
> Dec  9 21:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 41 to 42
> Dec  9 21:50:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 42 to 41
> Dec  9 22:20:53 trieli smartd[875]: Device: /dev/sdd [SAT], SMART
> Usage Attribute: 194 Temperature_Celsius changed from 41 to 42
> 
> The /dev/sdb temperatures (where it was able to report them), and the
> /dev/sdd temperatures are following an expected pattern - it looks
> like the PC was off before the start of the log you posted, and the
> drives were at the ambient temperature of the room (22 deg. C).  Then
> they climb to a normal operational temperature over time, and after
> that hover around that temperature, going up a bit when they are busy
> (or the room temperature changes).
> 
> I do not understand the /dev/sda temperatures.  It initially drops
> rapidly, as though a fan has come on, and then stabilizes around a
> very high temperature.  The ridiculous numbers for /dev/sdc follow the
> same pattern as /dev/sda.d
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