UdoB's latest activity
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UdoB replied to the thread ZFS storage is very full, we would like to increase the space but....Yeah, that's no secret :-) Unfortunately this does not mean, that I am a ZFS expert..., there are too many internal details I do not understand. Well, the most important point is that there is no automatic re-balancing. Already stored data will... -
UdoB replied to the thread ZFS storage is very full, we would like to increase the space but....Dropping ZFS will make you lose the guaranteed integrity of ZFS, IOPS (...are low for Raid5), technically cheap snapshots, transparent compression, zfs send/receive, ..., ... And... easy extensibility. Where is your problem? (( Yes, you may...
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UdoB replied to the thread Looking for a free 10 Gb/s firewall, on VM Proxmox..I can not prove/verify this, but I would expect it. While Ethernet can operate bidirectional with full speed by definition, some operations may influence each other: received data must get pushed from the circuit board through PCIe into the...
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UdoB replied to the thread Looking for a free 10 Gb/s firewall, on VM Proxmox..Well..., this is one rare opportunity where I would try to use PCI pass-through of the physical NIC. This eliminates the virtualization part and should get you the maximum possibly (nearly native) performance. Disclaimer: not tested!
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UdoB reacted to SteveITS's post in the thread Auto Migration doesn't work when using "reboot" button in webgui with
Like.
known issue, see https://forum.proxmox.com/threads/vm-migration-error-on-node-reboot.177378/, https://forum.proxmox.com/threads/if-reboot-is-triggered-pve-node-goes-away-too-fast-before-ha-migration-is-finished.170268/. -
UdoB replied to the thread IO Pressure Stall.Perhaps because ZFS does write much more often than LVM. That graph shows an average below 0.15 percent. Do you feel that's a problem?
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UdoB reacted to SteveITS's post in the thread if reboot is triggered pve node goes away too fast before ha migration is finished with Like.
Another way to migrate all VMs (and have them migrate back to the same server) is to enable maintenance mode. On any server run: ha-manager crm-command node-maintenance enable pve1 (wait for migration, then reboot) ha-manager crm-command...
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Naja, NFS ist so simpel, dass es praktisch ein offenes Scheunentor ist, Goldstandard würde ich das nicht nennen: https://talks.mrmcd.net/2024/talk/7RR38D/ Außer man konfiguriert Kerberos, aber dann ist es nicht mehr simpel. Nicht falsch...
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UdoB replied to the thread Was ist eigentlich der richtige Weg, einen Trunk in Proxmox zu verwenden ohne dedizierte vlan Konfiguration für VMs.Was der Standardweg ist, weiß ich nicht. Ich habe für mich entschieden, dass eine VM "von innen" nichts manipulieren können darf, daher bekommt keine VM Zugriff auf tagged trunks. Außerdem ist mir SDN "zu kompliziert" ;-) Stattdessen habe ich...
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UdoB reacted to IsThisThingOn's post in the thread ZFS storage is very full, we would like to increase the space but... with Like.
BTW, that calculator has an interesting note regarding the zfs list command you used: Maybe this is what screwed your tests? I honestly have no idea. Here is another, IMHO even better calculator. And if you scroll down all the way to the...
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UdoB replied to the thread Auto Migration doesn't work when using "reboot" button in webgui.Please check if Datacenter --> Options --> HA Settings contains "Shutdown Policy: migrate"
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Windows also tends to zero the memory under certain circumstances which causes it to be immediately allocated too. In general the RAM you give to a VM should be considered gone.
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UdoB reacted to BobhWasatch's post in the thread Host Memory Usage is full in VM allotted with Like.
First, please search the forum before posting. Somebody (always "new member") asks this question every few days. First, if you have any PCIe devices passed in to the VM, then all VM memory must be pinned at startup to avoid issues with DMA...
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Welcome, @Gabriele_Lvi . I'm not stating that your issue was also present at PVE 8,, but as far as I remember from the forum posts, the graphs in PVE 9 are more "spiky" than in PVE 8 because they are prepared other way than they used to be in PVE...
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you shouldn't use consumer ssd like Samsung evo with zfs. zfs is doing synchronous write, and consumer ssd don't have a supercapacitor to keep sync writes in memory cache before writing the nand cell. (it's really something like 200~400iops on...
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Geht so. ;) Hatte ein paar Wochen die DXP4800+ bis sie mir zu dünn drauf war für Virtualisierung. Bin dann auf das Minisforum N5 gewechselt und das rockt mit dem AMD. Dazu noch USB4, Oculink ... ach ja, 5 bays hat das auch in einem extrem...
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UdoB reacted to Impact's post in the thread Making root volume live in the lvm thin pool ? with Like.
With ZFS both datastores have access to to the whole disk's storage and due to compression you efectively have more too :) The size allocated to the root volume can be changed via the maxroot option in the installer.
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UdoB reacted to Impact's post in the thread Web UI reports critical memory usage, just caching with Like.
I'd enjoy a more detailed RAM usage statistic there too. It could look similar like this one for VMs or better, a horizontally stacked bar The issue with considering ARC as being unused is that it's not usually freed fast enough to be useful...
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UdoB reacted to fstrankowski's post in the thread Web UI reports critical memory usage, just caching with Like.
Looks totally fine to me. You're using roughly 60GB without L2ARC, rest is L2ARC usage (~ 170GB) + some remaining free GB (~ 20). I see absolutely nothing wrong here. The graphs have different color. If you hover over these graphs it will tell...
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UdoB reacted to ThoSo's post in the thread Backup von VM und Container auf mein NAS. How to? with Like.
Nein, kein Fehler beim System - eher Gedanklich beim Anwender ;-) Windows bzw SAMBA laufen immer nach dem schema \\server\freigabe Da gibt es bei der Benennung restriktionen wie länge oder die Zeichen. Windows ist es egal, ob du gross- oder klein...