Homeserver broken!

Datum
maandag, 12 augustus 2019
Body

No, the home server is not allergic to vitamins, on the contrary. It purred like a real charm! Once that was successful, I did another major intervention in "my" closet. Yes, our IT mess is in a cupboard, somewhere in the house, which is connected to the power grid and with an Ethernet cable also to the IT world. The server normally doesn't need a monitor, keyboard, or anything else, just those two cables: power and ethernet.
But every now and then you have to be there, for example, to reinstall the server OS (for the umpteenth time 😉). And then I drag in a screen and a keyboard. To make this easy, the server was facing the door with its back, where the connections are located. That meant that the fixed cables hung against the door, which meant that it didn't close properly, and some snorts and hums came into the room. That was not optimal, but it was very convenient to use.

Now there was a reason to take a good look at that setup: There were also two printers in that cabinet. An old inkjet with a scan option and an already fairly old laser printer. The inkjet could only be used as a scanner. I killed the laser printer a few months ago due to a bit of clumsiness with sticky labels. A printer with a label sticking in it is rather unusable. Tried to take it apart myself, but couldn't get to it. An "expert" can do that, but such an expert is also very expert in invoicing. A new printer is a lot cheaper!

And that new printer is now here. A fast inkjet with a scan option. I can even print an A3 on it if we need a poster now and then. And where two printers were replaced by one, space became available.
I used that spot to give the monitor and keyboard a permanent place in the cabinet. That's easy. Of course, I immediately turned the server around and all wires were removed. It remains a cupboard with two cables to the outside world, but now there is more in it.

When that was all successful, I went to bed with a satisfied feeling. I can still hear myself say "I am very happy with the way the cabinet is now furnished..."
Warning from someone with experience: Never say that! I am not satisfied at all now!!!

Or to put it differently and more clearly: if you move a server from its place, you would do well to open it up, check all connections, remove all dust and CAREFULLY place it in its new spot... But hey, what bad can come from just turning around? Well, quite a lot!
One of the hard drives, grouped together with the others in a RAID-10, is in a "swappable" position. It couldn't really be otherwise in that server cabinet. You can, in theory, pull this disc out and replace it with another. If you turn the server around, you run the risk that such a connection will become a bit loose. And a little bit loose is a disaster for a hard drive.
It takes a while before you realize that, you only see that the server is not working and gives an error message on its RAID.
A few hours later, while I'm trying everything, suddenly a long row of error messages appears on the screen. Something about the RAM... Just reboot, right? Well, no.
When you turn around a server, you really have to check and clean all contacts first. (Professional mechanics do that with a spray tube of air, amateurs with a vacuum cleaner.) And if you don't, sooner or later you will pay the toll. Toll in the form of new memory.

The result of all my software tinkering with the home server is that it now does nothing. Just wait a while for the new memory to arrive. And in any case, I've learned that a computer that sits in its own corner, no matter how dusty, would rather not be moved. Just like a houseplant. But then very different. (You never have to water a computer...)

Reactions or questions? Mail to:  serverblog@erbenet.nl.                                                            ... back to overview of blogs ...