gordonb3 wrote: 
>  Is SqueezeLite a 64-bit app? 
No, this is the 32-bit build 1313 which ralphy put up to help
troubleshoot this issue.

>> it possible that your hard drives are set to park when they are not
in use? 

Yes. here is how they are set up:
32835

Hibernation happens after 20 minutes, and I have also set up logging for
this. Looking at the logs, I see the last hibernation activity was 8
months ago. That makes sense, because this page:
https://www.synology.com/en-global/knowledgebase/DSM/help/DSM/AdminCenter/system_hardware_hibernation
explains that certain services, such as the Logitech Media Server need
constant access to disk, so if they are running, hibernation usually
doesn't happen, and that is the case with me. 

>>applications report 8-byte length winsock errors that need to be
masked 0x0000FFFF to resolve to a usable 10xxx decimal error code.

In that case, it would be helpful to use a #computer-directive to check
for 32/64 bitness, and use the suggested logic to resolve the
error-code. I hope ralphy can easily make the change, and I'll rerun my
test to see if I can get that error code. 

>> if you have installed `green` drives they will actually do that
themselves without the OS telling them. 
I am aware that these desktop-type drives have this power-saving
'feature' which causes problems for NAS. I have Toshiba NAS drives, and
these are not the 'green' type drives. 

Looking at the hard drives:

admin@nas:~$ sudo smartctl -a /dev/sda
smartctl 6.5 (build date May  7 2020) [x86_64-linux-4.4.59+] (local
build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke,
www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor:               TOSHIBA
Product:              HDWN160
Revision:             FS1M
User Capacity:        6,001,175,126,016 bytes [6.00 TB]
Logical block size:   512 bytes
Physical block size:  4096 bytes
LU is fully provisioned
Rotation Rate:        7200 rpm
Form Factor:          3.5 inches
Logical Unit id:      0x50000398ac581f2a
Serial number:        78NUK021FAXG
Device type:          disk
Local Time is:        Mon Jan  4 09:47:49 2021 PST
SMART support is:     Unavailable - device lacks SMART capability.

=== START OF READ SMART DATA SECTION ===
Current Drive Temperature:     0 C
Drive Trip Temperature:        0 C

Error Counter logging not supported

[GLTSD (Global Logging Target Save Disable) set. Enable Save with '-S
on']
Device does not support Self Test logging


Here we don't see all the information, but with the Synology Storage
Manager I can see SMART and other info about my 4 disks in raid-5. 
32837

Also: 

admin@nas:~$ sudo btrfs device stats .
[/dev/mapper/cachedev_0].write_io_errs   0
[/dev/mapper/cachedev_0].read_io_errs    0
[/dev/mapper/cachedev_0].flush_io_errs   0
[/dev/mapper/cachedev_0].corruption_errs 0
[/dev/mapper/cachedev_0].generation_errs 0

We can see that the Synology reports good health, and this is good for
all drives. With 15,000 hours on the drives, they have had about 2 years
of operation. I run a monthly health report on the drives, and they have
always reported good health. There is no reason to think that these
issues are related to drive health.

I'm going to play with Wireshark to see if I can gain some insight into
the TCP activity surrounding this outage issue.

Thanks


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