Sunday, September 15, 2019

More Stuff to Test

You'll remember that I'm big on TESTING my data backups.

I had an opportunity recently to TEST another of my backup systems - POWER.

My electricity provider, Entergy, is migrating their customers to their "advanced meters."

Since my utility connection doesn't have a bypass switch, the installer had to disconnect power to the entire house.

I couldn't have asked for better communication from the installer. He knocked on my front door and told me what he wanted to do. He offered me the opportunity to reschedule or do it now.

I was expecting the installation so I asked him for a few minutes to shut down some of my equipment.

I have UPSs (Uninterruptible Power Supplies) on my most critical systems but I really never had tested them.

Just to be extra safe I powered down my 2 desktop systems and gave him the thumbs up.

It took him 8 seconds to swap the meter.

My UPSs worked great. I heard a couple of beeps but everything kept working. The Wi-Fi and the WAN never went down. We turned the TV off but the TiVo kept chugging along. The Ring doorbell ran off its internal battery. The Insteon network came back with the house power. The Echos reconnected automatically. I have my Netbox system BIOS set to automatically power on which it did.

Test your UPSs some time.

Sunday, September 08, 2019

SD Card Testing

I heard a discussion recently about how to test SD cards. The speaker mentioned H2testw. I found a guide to using it here.

What H2testw does is write files that contain a test pattern that will fill up any unused space on a disk drive. This means that it will work on SD cards, USB drives, or even hard drives (especially SSDs.). If it writes successfully then it will read the files back and verify the data.

I tried it on an 8GB SanDisk microSD that I had. It tested successfully. The complete test took about  40 minutes.




When the application completes you'll need to delete the .h2w files.

It also reports the writing and reading speeds.

Sunday, September 01, 2019

GRDE Bluetooth Earbud

I wrote about my Bluetooth earbud a while back. That was before I dropped it in the toilet.


Impressively it survived! But the volume kept diminishing on it. That could have something to do with its bath.

Since the GRDE earbud worked so well and lasted through a hard life, when I went to replace it I looked at all of GRDE's Bluetooth earbud products.

This is what I ended up with.
And instead of the proprietary charging cable of the previous model, this one has a wireless magnetic inductive charger that plugs directly into a USB charger.

I hope it is half as good as the first one. And I'll try to be more careful.