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Posted by jpluimers on 2022/05/27
A while ago [Archive.is] Adam Jacob on Twitter: “Let’s say nice things about technology today. I’ll start. If it wasn’t for @lkanies and @puppetize, there is no way we would have been able to adapt as an industry to the rise of the cloud. Quote tweet me with your own.” sparked some interesting threads.
First posts are below; click on them to see the full threads.
Posted in Chrome, Configuration Management, Development, DevOps, Firefox, History, IaC - Infrastructure as Code, Infocom and Z-machine, Infrastructure, KVM Kernel-based Virtual Machine, LSI/3ware, Open Source, PDP-11, Power User, PowerShell, Puppet, Python, Qemu, Rust, Safari, Scripting, Software Development, UCSD Pascal, Vagrant, Veewee, Virtualization, Web Browsers, Xen | Leave a Comment »
Posted by jpluimers on 2021/10/18
Reminder to self to check out if things have improved over time: [WayBack] Kristian Köhntopp on Twitter: “Trying my lvmraid kata from yesterday in real hardware was very frustrating. Everything is very single threaded, and does not leverage anything of the power of the actual device. … Basically, my linear-to-raid conversion idea died in the crib.” described to 2019 situation:
- [WayBack] Trying lvmraid for real | Die wunderbare Welt von Isotopp
So basically this died in the crib, because it does not leverage any parallelism the CPU, the multitude of drives, the deep queues of the NVMEs or anything else would have to offer.
It’s from the past.
LVM is in need of serious overhaul in order to become a tool for the 2020’s. Outside of toy workloads, snapshots don’t work, lvmraid also does not work.
- [WayBack] Cloning and splitting logical volumes | Die wunderbare Welt von Isotopp
–jeroen
Posted in Hardware, Power User, RAID | Leave a Comment »
Posted by jpluimers on 2019/04/29
This is the second time in about 6 years that somehow after an ESXi reboot all of the drives on an LSI 9260-8i controller got into the state “Unconfigured bad”.
The trick to solve this is to:
More in depth steps with images:
–jeroen
Posted in LSI/3ware, Power User, RAID | Leave a Comment »
Posted by jpluimers on 2018/11/19
TL;DR: BBWC are using NiMh batteries that you can replace with bigger ones.
Source: [WayBack] Refurbish the battery on an HP P410 BBWC | Opensource Blog
Via: [WayBack] Very useful hack if you are running old HP Xeon servers and want to use the original disk controllers and spinny rust. – Alan Cox – Google+
–jeroen
Posted in Hardware, Power User, RAID | Leave a Comment »
Posted by jpluimers on 2016/04/29
A while ago, I had RAID arrays suddenly drop out with unexpected sense codes.
I had a hard time tracking down what was wrong (it ended up being a faulty LSI Multi-lane Internal SFF-8087 to SATA/SAS Cable).
This caused all sorts of unexpected failures, hard to track down to any specific sense code.
As drives are bound to fail, and finding sense codes is a bit difficult, here are a few links that might help if I ever run into trouble again:
Posted in LSI/3ware, Power User, RAID, SAS/SATA, SFF-8087 | Leave a Comment »
The Wiert Corner - irregular stream of stuff 