[mythtv-users] Any way to tell which tuner card might be bad?

R. G. Newbury newbury at mandamus.org
Wed Feb 10 21:20:53 UTC 2010


On 02/10/2010 10:03 AM, James Pifer wrote:
>> This looks more like a hard drive or other IO problem.
>> Guesses:
>> Have you looked at a 'df -h' report, to check that /tmp, /var and swap
>> are not full? The other possibility is a drive going bad...Are you
>> running smartd and does it say anything in its logs? Have you de-fragged
>> and fsck'd the drive recently? With effectively continuous uptimes for a
>> year or so it would be easy to mess up a drive's ability to read/write
>> at full-bore levels.
>>
>>
>> Geoff
>
> I rebooted and forced and fsck. Looked like it came back clean.
>
> # df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/sda2              15G  6.4G  7.1G  48% /
> /dev/sda5             683G  635G   49G  93% /mythtv
> /dev/sda1              99M   18M   77M  19% /boot
> tmpfs                 760M     0  760M   0% /dev/shm
>
> I also show this in the log on reboot. I grepped messages for smart:
> Feb 10 08:51:36 mythtv smartd[2978]: smartd version 5.38 [i386-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
> Feb 10 08:51:36 mythtv smartd[2978]: Home page is http://smartmontools.sourceforge.net/#012
> Feb 10 08:51:36 mythtv smartd[2978]: Opened configuration file /etc/smartd.conf
> Feb 10 08:51:36 mythtv smartd[2978]: Configuration file /etc/smartd.conf parsed.
> Feb 10 08:51:36 mythtv smartd[2978]: Device: /dev/sda, opened
> Feb 10 08:51:36 mythtv smartd[2978]: Device: /dev/sda, found in smartd database.
> Feb 10 08:51:36 mythtv smartd[2978]: Device: /dev/sda, is SMART capable. Adding to "monitor" list.
> Feb 10 08:51:36 mythtv smartd[2978]: Monitoring 1 ATA and 0 SCSI devices
> Feb 10 08:51:36 mythtv smartd[2980]: smartd has fork()ed into background mode. New PID=2980.
>
> I also grepped for "error" and did not find anything about the drive.
>
> top before reboot shows:
> top - 08:38:49 up 22 days, 43 min,  1 user,  load average: 0.00, 0.00, 0.00
> Tasks: 159 total,   1 running, 158 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.1%us,  0.1%sy,  0.0%ni, 99.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> Mem:   1554848k total,  1503300k used,    51548k free,    22784k buffers
> Swap:  1052248k total,      160k used,  1052088k free,  1204700k cached
>
> top after reboot shows:
> top - 09:00:27 up 11 min,  1 user,  load average: 0.03, 0.18, 0.16
> Tasks: 153 total,   1 running, 152 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.1%us,  0.1%sy,  0.0%ni, 99.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> Mem:   1554848k total,  1056864k used,   497984k free,   637596k buffers
> Swap:  1052248k total,        0k used,  1052248k free,   266008k cached
>
> I'll try to check top while some recordings are going to see if the wa
> percentage goes up.

Well that doesn't tell us anything *bad*, which is *good*. Lots of 
working space, and all on one drive. As a previous post pointed out, 
heavy mysql AND video accesses at the same time, can cause problems. I 
suspect we are down to something like that, since the hardware seems to 
be good.
So we have cut off some corner cases....which leaves us in the 
featureless middle!

Geoff




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