Would lvmraid have been improved over 2019? (back then: very single threaded, and does not leverage anything of the power of the actual device)
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
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