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Availability The HPE ProLiant RL300 Gen11 server will be available worldwide for purchase or as-a-service through HPE GreenLake in calendar year Q3 2022, through HPE and HPE’s Channel partners.

HPE ProLiant RL300 Servers with Ampere Cloud-Native Silicon Launched https://www.storagereview.com/news/hpe-proliant-rl300-servers-with-ampere-cloud-native-silicon-launched

It would be nice and very usefull to integrate in PVE some kind of bitmap based incremental backup like this: https://github.com/abbbi/qmpbackup

It's a simple mockup produced with Pencil Project Portable :-)

On a local storage some iops are also produced from the host, not only from guest VM. So you can have I/O delay also with VM in stop mode. With a Fsync value of 0.33 there no room for any I/O (the value means your system can write on disk one time every 3 seconds(!!) With a Fsync value of 40 you...

Your fsync/second are definitively too low. Probably this is due to the use of software raid for disks Good hardware raid controller are provisioned with a write cache that give two orders of magnitude fsync/second Depending of your workload the lack of fast fsync response can produce high I/O...

Your pvperf show an orrible 0.33 fsyncs/second. value should be greater than 200...

Speaking about future Proxmox VE enhancement about Qcow2 there is also anothe relevant variabile to put under control. It the Qcow2 cluster size. There is a good exlanation of Qcow2 cluster size relevance here on jamescoyle blog "2055-qcow2-image-format-and-cluster_size": " A virtual disk...

Promoting Proxmox Ve in the Italian Public Sector

Tuning the Qcow L2 cache parameter seems to be very important for just "normal" Qcow disk sizes... This is good explanation of the issue i copy and past from blogs.igalia.com/berto/2015/12/17/improving-disk-io-performance-in-qemu-2-5-with-the-qcow2-l2-cache/ A qcow2 file is organized in units...

Struggling with Gluster I/O :-)