Alex rewires his rack with a Unifi PDU Pro, an 8 port HDMI PiKVM switch and installs new hard drives

[@badnetmask]

I just wanted to say this is the first time I watch one full video of yours, and I really appreciate the fact that you don't edit yourself to sound/look perfect. Watching this is like I'm standing there next to you while you're making decisions on the fly. A breath of fresh air on KZbin. Thanks!

[@ktzsystems]

thank you bud! That was the vibe I was going for and I’m pleased you enjoyed it. techhub.social/@ironicbadger/112163003071956819

[@pealock]

Love your videos, been listening to Self-hosted for quite a while. Just wanted to share some love, thanks for all you do for the self-hosted FOSS and homelab community!

[@JamesTenniswood]

Love this stuff, don't over think the production values, it's still super interesting

[@PizzaGoat323]

Brilliant video. I love these kinds of videos no real script or big edits just you working on stuff and showing us

[@DcKayb]

Excellent video, mate. Thanks for taking the time to make these, they are giving me lots of interesting ideas for my own homelab 🤘

[@liamgreenwood]

Hi Alex - nice to see a local doing home server videos! I'm in Cary so not that far.

[@ktzsystems]

Cool! I’m sure there must be a lot of us in the triangle given RTP and Red Hat!

[@Solanum.95]

Great video! I have all my network equipment and my server in a self made wood rack similar to yours, It’s cheap, strong and you can build it however you like!

[@kevinwhiten2804]

Would love to know what UPS you are using! Love your content.

[@trapexit]

Reminds me... I really need to rework my bbf tool and properly release it. I've got some burnin functionality that I've found useful beyond what I've found elsewhere. I've had situations where SMART shows up fine and other scans and general workload can work but heavy usage leads to intermittent errors. bbf has a mode to thrash a filesystem by spawning numerous threads that run different commands in hard loops to stress the drive and the filesystem. I've found a couple bad drives and cables that way.

[@ktzsystems]

Do eeeet

[@trapexit]

​@@ktzsystemsAfter I get passthrough working in mergerfs. I've got the release candidate kernel setup and I've been prototyping. Burned a lot of cycles on bad error reporting in the FUSE driver but... is what it is.

[@ktzsystems]

@@trapexit passthrough means what in this context?

[@richschumacher6464]

D1 Mini spotted 🕵

[@pr19580]

Great video, thanks! What is that rack mount for your two Dell Optplexes?

[@ktzsystems]

kzbin.info/www/bejne/p4iqaolnq8pgj7csi=jebJ-CnQm7xcI4ji

[@TuomoLahtinen]

Odd that the sliger does not come with anti vibration rubber grommets for the hard drives or maybe you are just not using them

[@woe2you2]

Those m.2 carrier cards are great until one dies.

[@darokis]

Hay Alex. I have same Sliger case. Can you tell us the exact spec of the SATA power cable you ordered from KareonKables. What did you selected on the website. 12" long, 10 connectors (lockable or non lockable) ? etc. Thank you

[@ktzsystems]

I will once I get the final version (a replacement is en-route to fix the 3.3v issue discussed in the video). You can always email Adam directly, he's very responsive.

[@cdnStephen]

The locking ability of the cable not functioning is not an issue with the cable but with the connectors built into the case. I still ordered the cable with locking option for future use.

[@dagamore]

as a data center monkey, I really love front loaders, even the ones that are two deep, but hate the top loaders, I should not have to pull an entire server out of a rack to remove the lid to swap out a failed/failing hard-drive. I know when drive density is way up i.e. 60 drives in a 4u, you are kind of stuck with a top loader, but that is an edge case that most people wont be facing. having them front load would would really make the Hl15 worth the money, even if they kept the front fans, have them on a hinged and drop out of the way to allow access to the cage, I am willing to be that entire drive cage can be rotated 90 deg to be front loading with out too much re-working. But I also know they are using a bunch of their tooling for their enterprise lines as a cost savings measure.

Wellllll I just sent a message to Unifi asking them to integrate a second input power source + Automatic transfer switch option for their PDU line of products. Why? (hopefully they can leverage their existing monitoring tool AND make it equal or cheaper than other brands out there) The idea behind the ATS in you current system would anything blip upstream of the only one input power source, your entire install goes down. I've seen the little UPS box next to your server units. But did not see any on your network/KVM. (your upstream power source needs to be on two different circuit breakers, then at least one UPS feeding one of the ATS source, the second is straight to the wall outlet unless you have a separate UPS) Work you electrical feed idea with "Feed A, Feed B" IF you have zero budget for it, then the minimum is to look at your circuit breakers load. (It's pointless to do all the redundancy work on your disk arrays and data replication if your entire install's power install is weak) Write my words, you'll find out the day your small UPS has a meltdown event and I've seen it happen a few times even with expensive UPS units. Second thing, what kind of monitoring do you have in place for things like water leak or smoke detection? Third thing, while getting at the back of your rack seems a tad challenging, that PDU "front facing" isn't really meant to be up there the way you've installed it but I understand the challenge with rear rack access, it's just that you've now made the entire upper part of the rack space un-usable for additional devices. Last one.... Cable management !!!!!!!!!!! the more power cords you keep hanging free at the back the more crowded it gets for any hot air to dissipate and flow away from the rack. Network cables should never cross in between the rack posts to go to random devices at the back unless you're using a patch panel or pass through cable tray. Get some velcro and pass the cables from the front of the rack, to the side and then chose an entry point to go to the back.