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I reread the op and for the life of me I dont understand what you're asking. Actual free space is exactly what you think it is, but its not USABLE. Usable free space depends on the makeup of your data, since you have a special device that (presumably default) is eating all <128k writes. And...

I dont think that note is as wide in scope as the working seem to suggest. Public and Private (cluster) traffic dont need routability to each other to function, so you're safe on that front. Reading up further, monitors can only have one pinned IP, which means that while you can have multiple...

if the original data was a zvol, you can just append .raw to the file. then you can use qemu-img to import the data to your new destination.

ceph allows multiple public networks. just make sure your monitors exist on whatever public network(s) you define. see https://docs.ceph.com/en/reef/rados/configuration/network-config-ref/

Some things to consider: 1. Connectx3 cards were often shipped as VPI cards. what that means is that each port can operated as ethernet or IB. When set to auto mode (default) they will default to IB when no link is detected at boot. You can and should force the ports to the operating mode you...

easy way to determine whats going on. OP please post the content of your vmid.conf for your ubuntu vm. If you ARE passing the drives to your VM, this behavior is consistent. mdadm is picking up the drive at pve boot, and then cutting them off when the vm is started for the passthrough, leading...

interesting idea. I dont know if the pve tooling would work for this but even if it doesn't it can be scripted relatively easily. I'd love you hear your success story if you'd be so kind to document :) Having said that, if PBS allows live access without restoral I'd say that would be the better...

I think you may be obsessing about the "performance" and "cost" aspects entirely too much. 1. What is the makeup of your payload? (number of vms, function, ACTUAL performance in IOPs) 2. a backup device MUST be a separate device then the primary, because, you know, it cant be both primary and...

smh. as you please. I dont and cant provide benchmarks proving a negative. the claim was: without any proof. all I said that this didnt line up with my experience. and your counter is which is not AT ALL an endorsement of the original claim. I didnt claim it did either.

No. I'm saying I saw no benefit using RDMA for SMB. If you are saying you have, it would be good to have repeatable tests to prove- It is entirely possible I didnt have a use case that could benefit. You cant both make a claim and ask someone else to prove/disprove it- you're the only one...

benchmarks please. that has not been my experience. at all.

the relevant questions to ask: 1. Would you want the failover to occur automatically, or with user intervention? 2. What is an acceptable outage period? 3. What is acceptable in terms of minimum performance (specifically, disk performance) IF the acceptable outage period is not too short AND...

swap should be used sparingly if at all on a server device. If you run in a memory constrained environment, you will end up with unpredictable application performance. I dont set up swap on server at all. If I see OOMs I either move VMs or add ram.

the actual media resides on your nas. In order to have jellyfin function you need both jellyfin and the storage present; since your nas can run this function by itself you reduce the required number of devices to one by simply running the application on the storage. The only time it makes sense...

Realize that this creates a two system dependency for your application (jellyfin.) The correct (least dependencies) solution is to have the jellyfin container run on the nas. https://nas.ugreen.com/blogs/how-to/install-jellyfin-setup-step-by-step

graphs dont show any likelihood of networking issues/starvation. if your storage isnt reporting any issues, thats not likely to be your problem.

You havent really established this is a "storage" issue at all. your problem description, suggests the issue is with how your software interacts with the decoding and not so much with the storage; it COULD be the storage but you havent posted any diagnostic data to suggest it, namely- what are...

This is the expected reaction for anyone who hasnt been on the other side of this. REMEMBER, the PRIORITY of any change in systems is, in order: - to provide AT LEAST a minimum of service requirements, as delineated in the RFP. - to cause as little impact to users. lost productivity in the name...

the (much) greater likelihood is that this disk is failing. have you run a smart test? (smarctl --test=long /dev/sda) Assuming the drives are NOT bad, next is to run a full lifecycle upgrade. has the problem gone away? If not, your machine is likely defective- and its probably NOT your perc...

thats a completely normal behavior for windows. It happens to me on a desktop- explorer really likes to cross all the t's and dot all the i's. if you want faster file copy use a different tool (eg, robocopy.) Not sure if that relates to the initial topic, but this behavior is not at all relevant...