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by whiteshepherd
Wed Nov 20, 2019 10:34 pm
Forum: Networking and servers
Topic: AM I defaulting to a degraded Raid5 array?
Replies: 16
Views: 485

Re: AM I defaulting to a degraded Raid5 array?

Thanks all the the info and heads up letting me know it's doing what it should. I'm letting it build %80 so far. When that finished I will format it to EXT4 and set up samba directories for each family member. Will give us 12GB of storage backed up by raid 5. Family likes to store their videos and p...
by whiteshepherd
Wed Nov 20, 2019 1:44 am
Forum: Networking and servers
Topic: AM I defaulting to a degraded Raid5 array?
Replies: 16
Views: 485

Re: AM I defaulting to a degraded Raid5 array?

So the Spare Device listed is normal for raid5 3 drives?
by whiteshepherd
Wed Nov 20, 2019 12:08 am
Forum: Networking and servers
Topic: AM I defaulting to a degraded Raid5 array?
Replies: 16
Views: 485

Re: AM I defaulting to a degraded Raid5 array?

mdadm.conf shows:
ARRAY /dev/md0 metadata=1.2 spares=1 name=server:0 UUID=a7bd0076:6e221518:1dc423fc:dd76e480
by whiteshepherd
Tue Nov 19, 2019 10:46 pm
Forum: Networking and servers
Topic: AM I defaulting to a degraded Raid5 array?
Replies: 16
Views: 485

AM I defaulting to a degraded Raid5 array?

I have a Raspberry Pi 4 with 2GB memory. One of the things I like using my Pi for is a network samba server. I get large external drives and share with with my family using samba for their storage. It works fine except when a external drive fails it's %50 the USB controller. If you open your drive y...
by whiteshepherd
Thu May 02, 2019 11:58 pm
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

Looks to me like people are participating and theory crafting. Several months ago I used a Sata 2 USB adapter with a SP 240GB SSD and I was amazed how little power it took. I was thinking I could make useful server running at 1 watt. Don't know if it's going to be possible. But will be fun trying. T...
by whiteshepherd
Wed May 01, 2019 4:03 am
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

drgeoff wrote:
Tue Apr 30, 2019 9:50 am
whiteshepherd wrote:
Tue Apr 30, 2019 4:24 am
drgeoff wrote:
Mon Apr 29, 2019 11:31 pm

That's not creative. Just plain wrong.
Why is it plain wrong? The capacitor would help average out the quick spikes and the meter could give me my amp draw.
An ohm meter measures resistance.
Most ohm/multi meters can also measure voltage and current draw if you didn't know....
by whiteshepherd
Wed May 01, 2019 3:57 am
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

Spikes is why I also suggested trying a super capacitor (a few farad) if you didn't have something to sample at a high rate. The super capacitor (though not perfect) should catch/smooth the spikes (if they are frequent enough) as the super capacitor increases the load to recharge between spikes? Ano...
by whiteshepherd
Tue Apr 30, 2019 4:24 am
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

drgeoff wrote:
Mon Apr 29, 2019 11:31 pm
whiteshepherd wrote:
Mon Apr 29, 2019 2:38 pm
I'll then use a ohm meter to measure/average my power used over a 5 min sample time.
That's not creative. Just plain wrong.
Why is it plain wrong? The capacitor would help average out the quick spikes and the meter could give me my amp draw.
by whiteshepherd
Mon Apr 29, 2019 2:38 pm
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

The goal is to see how creative people are in being power efficient. 1 watt is the suggested goalpost either all the time or average (post which you achieve). BE CREATIVE. As far as the HDMI already being off if not used it's not. If you're running a headless Raspberry Pi, there's no need to power t...
by whiteshepherd
Mon Apr 29, 2019 4:47 am
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

Like I said a Pi 0/W is recommended which can be run at 80-100 ma in the right configuration.

https://www.jeffgeerling.com/blogs/jeff ... rve-energy

Even if you can't hit 1 watt. Fell free to post your lowest power progress so far!
by whiteshepherd
Sun Apr 28, 2019 9:07 pm
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

Re: 1 Watt server challange!

Ok, as the original poster I'm going to be more clear. The goal of this "for fun" contest is to see what kind of Raspberry Pi server we can build that will run stable on 1 watt or less (either under 1 watt all the time or averaging less than 1 watt just post which). Voltage/amps combo used don't mat...
by whiteshepherd
Tue Apr 23, 2019 6:57 pm
Forum: Networking and servers
Topic: 1 Watt server challange!
Replies: 76
Views: 6823

1 Watt server challange!

As you know the Pi 0 and Pi 0W can be cut down to well under 1 watt of power. I had someone mention that Raspberry Pi would NEVER be a viable server. I remember coding and running massive servers on a 266 Cyrix and the Pi is a beast compared to that. I decided it would be cool to prove a point but a...
by whiteshepherd
Wed Nov 28, 2018 9:25 am
Forum: Beginners
Topic: Pi0W not accepting SSD hard drive expanded partition?
Replies: 11
Views: 1394

Re: Pi0W not accepting SSD hard drive expanded partition?

I did try the bootcode.bin file first. However the Raspberry Pi0W failed to boot at all (not sure why).
by whiteshepherd
Sat Nov 24, 2018 10:24 pm
Forum: Beginners
Topic: Pi0W not accepting SSD hard drive expanded partition?
Replies: 11
Views: 1394

Re: Pi0W not accepting SSD hard drive expanded partition?

raspi-config will not resize if it is not the sdcard. I finally got it working! First I noticed errors building on the USB 3 ports so I was using the USB 2 ports. No errors reported by the file system but no booting. After trying all day different attempts and no success, I finally remade a bootable...
by whiteshepherd
Sat Nov 24, 2018 5:29 pm
Forum: Beginners
Topic: Pi0W not accepting SSD hard drive expanded partition?
Replies: 11
Views: 1394

Re: SSD hard drive booting strange?

I then shut down and plug the SATA 2 USB into my up to date Ubuntu PC and using gparted I expand the EXT4 file system to use the remaining free space (230+ GB). My guess is that the this changes the partition table in a way that the Pi doesn't like. Can you post the tables before and after? Use e.g...
by whiteshepherd
Sat Nov 24, 2018 1:27 pm
Forum: Beginners
Topic: Pi0W not accepting SSD hard drive expanded partition?
Replies: 11
Views: 1394

Pi0W not accepting SSD hard drive expanded partition?

I have a Raspberry Pi zero W and want to use it as a wireless server (to replace my original first gen Pi). So for reliability over the standard SD card I bought a brand new Toshiba SSD 240GB drive which I have plugged into a sata to USB adapter to hold the root partition. I have everything plugged ...
by whiteshepherd
Sat May 16, 2015 3:42 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MCP23017-E/SP not found?
Replies: 13
Views: 2115

Re: MCP23017-E/SP not found?

I had another v1 Pi I had turned into a UV camera. With much reservation I took it apart and swapped the Pis. Still no detection. I then downloaded a older version of of the OS. Still no detection. I'm down to perhaps all 5 chips the vendor sold me were bad?
by whiteshepherd
Fri May 15, 2015 4:51 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MCP23017-E/SP not found?
Replies: 13
Views: 2115

Re: MCP23017-E/SP not found?

Ok, thanks for the help so far. Here is where I am with the suggestions. I took a meter and tested all the wires good. I tried using 2 different MCP23017 chips. I then tried using resistors on the reset. I have a variable power supply. So I then disconnected power from the Pi. I tried adding a capac...
by whiteshepherd
Thu May 14, 2015 6:35 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MCP23017-E/SP not found?
Replies: 13
Views: 2115

Re: MCP23017-E/SP not found?

My old phone does not take great pictures. But here is what I got. Wire color: Red +3.3V Brown Ground Black Ground Orange SDA Yellow SCL Little white jumper wires (spares I had) from left to right: +3.3 to reset Ground to Vss +3.3 to Vdd The wires above is just a RGB LED I have not hooked up yet (ti...
by whiteshepherd
Thu May 14, 2015 4:48 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MCP23017-E/SP not found?
Replies: 13
Views: 2115

MCP23017-E/SP not found?

Ok, this is my first attempt at using the Raspberry Pi GPIO so perhaps I made a NOOB mistake someone can point out for me? I decided it would be fun to make a spaceship out of painted wood the kids could go inside and add blinking lights/switches old Star Trek style. I know there is limited GPIO por...
by whiteshepherd
Sun Aug 03, 2014 4:39 am
Forum: Graphics, sound and multimedia
Topic: Poor man's UV/IR camera. Open discussion.
Replies: 1
Views: 1790

Poor man's UV/IR camera. Open discussion.

I'm here to post the results of my home made "poor man's UV/IR camera" and hopefully get some input for improvement. I'm hoping others can input ideas to further improve this project as a "cheap" UV/IR camera. As to "why" I have always been fascinated by amateur IR/UV nature photography from an arti...
by whiteshepherd
Sun Sep 29, 2013 6:19 pm
Forum: Java
Topic: Educational Java Program
Replies: 10
Views: 3599

Re: Educational Java Program

I've noticed that the Oracle version of java works with my Raspberry Pi model A. It takes about 3-4 min to load game segments. On looking at the Pi with " free" there is a lot of disk swapping taking place. I was wondering can anyone confirm if the game will run any better on the model B? I was hopi...
by whiteshepherd
Fri Aug 30, 2013 11:32 pm
Forum: Off topic discussion
Topic: Would love a good call blocking solution
Replies: 11
Views: 12331

Re: Would love a good call blocking solution

I would love a way to block the call unless a 3 digit pin is entered correctly by the caller. I have researched this the last to days and come up dry. Is there any projects or even devices that will do this?
by whiteshepherd
Wed May 01, 2013 11:03 pm
Forum: Java
Topic: Educational Java Program
Replies: 10
Views: 3599

Re: Educational Java Program

I've coded for pascal. But I have never coded java before. I can read that link and give it a try. However you said OpenMax is not working? Plus there is a bug in the current sound setup? Should I try and look for examples in JOAL? Just looking for a little direction to start?
by whiteshepherd
Wed May 01, 2013 4:21 pm
Forum: Java
Topic: Educational Java Program
Replies: 10
Views: 3599

Re: Educational Java Program

With the sound removed the game starts right up. With the sound it pegs the cpu and locks up. This is a game I used to play in the 80s as a kid and have fond memories. Is there any way to play with sound on the Pi or is that a lost cause do to limitations?

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