UdoB's latest activity
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UdoB replied to the thread Ceph memory issue.Yes, I am/was keen to get some of them too. That's really a bummer :-( I wanted to put two to four OSD in each of it, the actual constrains should allow for four. Now look at https://docs.ceph.com/en/mimic/start/hardware-recommendations/#ram ... -
No matter whether developers decided on bits or on Bytes, they should place on the graph the unit they chose: "b/s" or "B/s" (or "p"(p like per) for "/" ) Not typing the physical unit on a graph automatically brought down the test grade at my...
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Hi friend, I can tell you that I have been studying this topic for months, between zfs and ceph, the problem is that in my case I have many vm that do different jobs, about 50 vm on 3 nodes, I started with HDD disks with zfs raidz but I had many...
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UdoB reacted to MarkusKo's post in the thread ZFS on rotative drives super bad performance with
Like.
ZFS is known to have bad performance with HDD's. While it may work, often it is suggested to add 2 smaller SSD's as special devices to your ZFS HDD pool to help with performance, even better use SSD's only. ZFS being a COW filesystem needs more... -
UdoB replied to the thread The Kernel Crash: A Bug in ZFS.Well..., ZFS ARC does shrink if required. But it does so slowly. (Edit: ...and if it is allowed to by "zfs_arc_min" being lower than _max) Too slow to be fast enough if one VM (or any other process) requests too much memory at once. RAM is the...
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You are running out of RAM Out of memory: Killed process 1925 (kvm) Maybe you should reduce vour VM's memory and check / limit ZFS arc cache https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_zfs_limit_memory_usage
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UdoB replied to the thread FYI: ZFS pool SUSPENDED not recognized / handled - even with HA VMs starving.No. That script looks fine - and I had already "Like"d it. :-) I am just a bit reluctant. While I really like Debian and I know enough to do a lot of optimization/scripting I usually hesitate to add another...
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UdoB reacted to Kingneutron's post in the thread What is the easiest way to backup the entire system (proxmox AND VMs)? with Like.
https://github.com/kneutron/ansitest/tree/master/proxmox Look into the bkpcrit script, point it to separate disk / NAS, run it nightly in cron. You can try Relax-And-Recover (REAR) or I also have custom fsarchiver scripts in that repo to do...
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UdoB reacted to alexskysilk's post in the thread FYI: ZFS pool SUSPENDED not recognized / handled - even with HA VMs starving with Like.
google high availability storage. There are many options available. resouces arent relevant in and of themselves. Storage solutions can be very low to very high powered, with different class of disk, tiering and caching methods, and with varying...
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UdoB reacted to thearona's post in the thread [SOLVED] "Umzug" auf neuen Rechner - Netzwerk geht nicht with Like.
Vermutlich hat die Netzwerke Karte einen anderen Namen als im alten PC. Display anstecken, anmelden, Output von "ip addr" kontrollueren und "/etc/network/interfaces" entsprechend anpassen
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UdoB reacted to Johannes S's post in the thread Update with "switch network configuration from network-scripts to NetworkManager" with Like.
No it refers to the distribution you use for the container. Proxmox VE host os is always Debian Stable with an Ubuntu kernel
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simply use a different subnet like for example 192.168.0.0/24 with 192.168.0.1 && 192.168.0.2 for your server 25g && backup 10gb card.
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UdoB reacted to z1ro1's post in the thread 403 Error During Backup/Restore – Rate Limit Issue with Cloud Provider with Like.
Thanks for your reply. I think there is a small misunderstanding here. My setup is as follows: PBS server is running locally with HDD storage (so IOPS is not the bottleneck). The problem occurs only because the remote S3-compatible backend...
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It can run on other cluster members. The Ceph storage layer still exists on 3/4. If the server is operating it may be able to migrate (?) otherwise HA will start it on another server. you may want to read through...
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UdoB replied to the thread 403 Error During Backup/Restore – Rate Limit Issue with Cloud Provider.The PBS is local and just the storage is remote in that slow cloud? I would suspect that having a working and usable PBS with just a handful of IOPS is... impossible. Remember that lokal HDDs with ~150 IOPS are considered too slow (for...
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UdoB replied to the thread CEPH Experimental POC - Non-Prod.Just to be sure, did you see this? --> https://forum.proxmox.com/threads/fabu-can-i-use-ceph-in-a-_very_-small-cluster.159671/ From my (possibly wrong) understanding Gluster is deprecated, at least Redhat states...
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UdoB reacted to floh8's post in the thread [Pathfinder4DIY] PVE and high performance Full NVME ZFS Storage with High-Availability (Active/Active) via TCP or RDMA on commodity HW with Like.
!!! 1.Hint: This Thread is not for Ceph fan boys. Go away! !!!! Occasion: In the Thread zfs-over-iscsi HA Storage solution my one (the word "one" is always related to a human being, not a matter or person or number) mentioned that...
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UdoB reacted to Johannes S's post in the thread Best practices deploying Docker containers on LXC with multiple network devices? with Like.
Best practice is to use am vm for docker containers, from the docs:
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naja ich bin auch nicht mehr so jung xD aber arbeite seit ca 35 Jahren schon mit Linux, Windows und in der IT daher hab ich da schon einiges an Erfahrung aber habe mir auch sehr viel durch ausprobieren selber bei gebracht und durch viel lesen...
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UdoB reacted to edd's post in the thread FYI: ZFS pool SUSPENDED not recognized / handled - even with HA VMs starving with Like.
Excuse my ignorance, but does this not create a single point of failure for the whole cluster? To automatically force VM migration to an unaffected node.