In the world of computing, there are some things which, in Dustin's words, "is not good software." For the past 6 months, I've been messing around with Ceph for object storage. Luckily for me, it is good software. However, it has bad documentation. Sometimes bordering horrible. This is the sorry state of opensource software these days (ever try an use a Hashicorp product lately?). While most things in Ceph are fairly automated, swapping an OSD's underlying storage device is not. Seems like a scale-out storage product would want to nail down the simple act of swapping a dead hard drive, right?
Sadly, the official documentation for swapping a drive is...long and not admin friendly. Seriously Ceph team, this is your suggested process? Red Hat is now Ceph's corporate overlord and even they think that this is an arduously bad process. Look, they even made a bug on it: https://bugzilla.redhat.com/show_bug.cgi?id=1210539
Luckily, I've figured out a much easier way. Here it is:
1. On the storage node, find the OSD # to drive letter mapping (sdq is the dying drive):
Remy started to crawl about a month ago, and every parent knows what happens when children start to crawl....they get into everything. Everything. So this meant changing up our existing entertainment area and optimizing for fewer emergency room visits. I'll admit, the old setup just had too much stuff on it in general, and especially too much stuff for him to get into. Here's what it looked like before:
So, out with the old and in with the new right? Sort of. The old TV was a 37" Westinghouse LCD that I bought over a decade ago. I tend to buy TV's the same way that I buy computers -- I get something better than decent and hold on to it for a while. A 37" LCD might not seem great today, but it wasn't too shabby in 2004. At least it did 1080p and had HDMI (baller!). The new TV panels are all super slim for fashion's sake (more on that later), and while they look really beautiful, they're seriously lacking in the audio department. The old speaker and amp setup (Parasound HCA-1200 mkII and KEF iQ3) also had to go. You can see that a child could easily knock over the stands and hurt themselves in the process. So goodbye amp and speakers, and time to get a soundbar.
A Creole coonass just trying to get by. I live in San Francisco and work as a digital plumber for the joint that runs this thing. (Square/Weebly) Thoughts are mine, not my company's.