XR6

Timeline of the outage: (times in UTC)
Starting at 02:03 on Saturday, requests started intermittently returning error 502, and many of the requests that were served successfully were significantly slower than normal At 05:59, most of the services on the server crashed. All subsequent requests were served by Cloudflare with error code 502 At about 11:00, I came online and attempted to diagnose the problem. Due to the previous failures I was unable to access the server, so all I was able to do was route traffic to an offline page At 16:35, with extra help, the server was forcibly restarted At 16:43 the server seemed to have come up successfully, so we enabled traffic and monitored the status By 16:53 it was clear that performance very poor and a significant fraction of the requests were resulting in error 502 (which means in this case that the server was already processing too many requests, so where were no workers available), so we disabled traffic again to investigate the situation further At 17:36, there was nothing clearly wrong so we tried enabling traffic again At 17:39 the performance was significantly regressing again so the site was turned offline again At 18:00 we ordered a new server At 18:35 the server was ready to be set up with all of the forum-related things, and for the data to be migrated to it At 21:28, the new server was fully set up and the forum was turned back online  
What were the symptoms?
IOWait accounted for the majority of CPU time, but IO utilisation was relatively normal In the syslog we were seeing a number of IO timeouts for the primary drive Prior to rebooting, the limited errors that we could see indicated that there had been disk corruption  
What was the root cause?
Although we aren't 100% sure, we think it's fairly likely that one of the two RAID 1 disks that form the primary disk had failed, and the poor performance was a consequence of trying to rebuild the array.
 
Why replace the server rather than the disk?
There were already plans to replace the server, this failure just accelerated them. We were also of the opinion that having the disk replaced and getting the array rebuilt would likely not end up being faster, especially as we did not have sufficient information to pinpoint the failure.

The Kailh Box Jade is one of the most famous clicky switches in the mechanical keyboard scene, boasting a thick click bar, MX stem with a box, and moderate afforadability at around $0.34 at any major mechanical keyboard switch retailer.
I have owned and use Kailh Box Jades for a month on my main keyboard and have experienced great joy from using these particular switches, they have a consistent click and actuation, and the sound of them is crisp and full, compared to that of the Cherry Blue's click jacket, which in contrasts sound hollow, dull, plasticky, and unapologetically cheap.
The Kailh Box Jades were my second major mechanical keyswitch, the first being the Outemu Blue in my previous E-Element Z-88 mechanical keyboard. The Jades blow the Blues out of the water in every single way.
 
As mentioned earlier, the Kailh Box Jade feature what is called a click bar,the small metal, paperclip-like bar in the middle of the bottom housing, this in conjunction with the stem leg on the switch's stem is what creates the satisfying, full, punchy click of the Kailh Box Jade.
The click feels as good as it sounds. The super thick click bar generates a very loud, typewriter-like sound signature that exudes pleasure on every keypress. It is that good of a keyswitch and I would easily call these the best clicky switch available to buy on the market at present.
 

 
The box around the stem is not just for aesthetics either, it's for dust protection as well as keycap stability. The housing is made by Kailh and does feature the traditional four pegs but rather only two clips on the side which shows in the unique bottom housing and the stem to accomodate. As a result, frankensteining these switches with other switches such as Gateron Blues or Zealios will not work. I have however had luck swapping the springs an dstems of the Kailh Box Jades and Pale Blues as they both feature the Kailh housing.
 
My one complaint about the switch is its weight, at stock, it takes approximately 70-73g of force to overcome the click followed by 50g of force to actuate after the initial bump. I found this heavy after long sessions, although your mileage may vary, and I am a fan of light linear switches, so a fairly heavy clicky switch like this was not in my alley. I believe if you are able to have the finger stamina to type on these switches, you'll find them very satisfying, just as I did. I believe the weight is what creates that heavy and full click, as I imagine a lighter spring or thinner click bar would result in a quieter, toned-down, crumbled down click compared to the crisp clean click of the Kailh Box Jade.
 
As a complete package, the Kailh Box Jade is easily my favorite clicky switch. It has a crisp & sharp click thanks to that thick click bar and decent weight albeit a bit heavy for my tastes. I have not had the opportunity to use the Kailh Box Navy, the Jade's heavier brother, but I would assume with my glaring concern regarding weight and finger fatigue of the Jade, that I would find the Navy a bit overbearing for my fingers, and I find the Jade the perfect mix of click and actuation.