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Anyone Tried Using A WD PiDrive?
Posted: Mon Jun 26, 2017 4:17 pm
by Automan
After actually getting my standard Pi to work I noted the slow sampling rate and other constraints caused by writing all the data to a Micro-SD card.
Anyway, Western Digital now offer small hard drives with a provided Micro-SD card to boot the drive.
Has anyone tried this with their energy monitor?
http://wdlabs.wd.com/category/wd-pidrive/
Re: Anyone Tried Using A WD PiDrive?
Posted: Tue Jun 27, 2017 6:13 am
by Automan
I have ordered one...
250GB Western Digital PiDrive - Foundation Edition
Hopefully then it should be possible to increases the data sample rate and get accurate daily energy consumption figures.
Time will tell...
Re: Anyone Tried Using A WD PiDrive?
Posted: Tue Jun 27, 2017 9:29 am
by ben
Automan wrote:I have ordered one...
250GB Western Digital PiDrive - Foundation Edition
Hopefully then it should be possible to increases the data sample rate and get accurate daily energy consumption figures.
Time will tell...
We have a Raspberry Pi running a version of our DashBox with a portable HDD. It works pretty well.
If you're using an RPi 3, make sure you use a 3A+ 5V power supply as the Pi is power hungry.
EDIT:
Write:
dd if=/dev/zero of=~/test.tmp bs=500K count=1024
1024+0 records in
1024+0 records out
524288000 bytes (524 MB) copied, 28.4798 s, 18.4 MB/s
Read:
dd if=~/test.tmp of=/dev/null bs=500K count=1024
1024+0 records in
1024+0 records out
524288000 bytes (524 MB) copied, 29.741 s, 17.6 MB/s
Re: Anyone Tried Using A WD PiDrive?
Posted: Mon Jul 03, 2017 9:16 am
by Automan
All my bits finally arrived and not 100% impressed with the WD 6" case which on the rear exposes the PCB's of the Pi and the Hard Drive to damage.
In my btmon.cfg I have set oem_upload_period = 0 which makes the inputs web page say updated typically staying at 1s but sometimes up to 5s
So I guess still not real time
System at present says
Memory RAM
Used 19.56%
Total: 923.35 MB Used: 180.64 MB Free: 742.71 MB
Swap
Used 0.00%
Total: 100 MB Used: 0 B Free: 100 MB
Disk Mount Stats
/
Used 0.59%
Total: 228.98 GB Used: 1.35 GB Free: 215.97 GB
/boot
Used 32.19%
Total: 64.97 MB Used: 20.92 MB Free: 44.05 MB
It will be interesting to see if the data is being stored on the hard drive.
Re: Anyone Tried Using A WD PiDrive?
Posted: Tue Nov 21, 2017 1:48 pm
by Frugal
The PiDrives are being discontinued and the prices appear to have dropped.
I bought a 250GB drive with the special USB cable and preloaded micro SD card for $23.19 and later bought a 6x6 case for $8.79.
Both orders were less than the listed $50 minimum for free shipping, but no shipping charge was added.
Yes, there is a cutout in the base of the 6x6 case under the edges of the pi and the drive, but is about 7/8" by 1 1/8" and doesn't bother me. So far, I'm pleased with purchases.