WAN
Which is what basically happens now already. I don't know how this would help the service being able to start.
That is definitely not the case, but the Upload might be a bottleneck.
First one I am doing already, second one is not really an...
Not sure if I can follow what you mean.
PBS is not slow, but PVE there is. HPEproliant microserver gen 10 with two SSDs in mirror plus a very slow copper upload connection.
Yes, since the backup is at 01:00.
I think that the system gets shut down for backup, boots up again and then for some reasons these two services won't start.
Still suffering from this issue on 9.1.5 and 0.1.271.
I am not sure if the Windows Server SQL problem is related or not.
The DB load is pretty low (only real load is probably for backup dumps), but coincidently or not it is mostly the VM running...
Ahh, so it is only there to know what it needs to backup, to get a backup from the shutdown state, without the changes that happened to the disk during the backup.
So maybe on ZFS it would theoretically also be possible to create a snapshot and...
but apparently also in stop mode. As seen by my output logs from stop mode. Sure it might not get used or used in a differently way, but it seams like it at least gets created?
Watch out when doing PBS backups with that setting. If I remember correctly, PBS makes use of that.
To get back to your initial question "How to reduce wear out" the correct answer IMHO would be:
Don't worry!
Others here recommended PLP drives...
That is what I thought, but I am not sure if this is entirely correct.
In the logs you can see this, no matter if the VM was running or not, when using stop mode:
INFO: scsi0: dirty-bitmap status: created new
So there is some dirty-bitmap that...
Someone else has to chime in. I simply assume it is not possible, since there is no option in the gui or cli or anything written in the docs about concurrent backups AFAIK. IO workers is, well about IO workers (webGUI shows me default of 16 for...
Do you need to shutdown VMs to backup them with stop mode? Or is it needlessly loosing uptime by doing so?
Here is how I used to think it works:
I thought it does not matter if the VM is running or not. In both cases the VM will be shutdown, a...
AFAIK that is not possible.
That is about IO workers, not about how many VMs are backed up simultaneously.
Why would you want to do multiple backups at the same time anyway?
If you have a performance bottleneck, running multiple backups at the...
Ist das immer noch RAIDZ1?
Was bekommst du denn auf PVE direkt raus, wenn du PVE benchmarkst?
Sowas in die Richtung:
fio --ioengine=libaio --direct=1 --sync=1 --rw=write --bs=4K --numjobs=1 --iodepth=1 --runtime=60 --time_based --name seq_read...
Ich würde dir vom umstellen auf vollblocksize=4k abraten.
Bei RAIDZ1 mit ashift 12 (Default), würdest du nur 50% der Kapazität verwenden können.
RAIDZ ist tricky und etwas komplizierter zu verstehen. Da kommt Padding mit ins Spiel. Bei 16K...
Hallo @Joe77,
die CrystalDiskMark-Werte bestätigen das Problem — die sequentiellen Werte sind hervorragend, aber 4K Q1T1 mit ~35/28 MB/s ist für drei PM983 NVMe im Verbund deutlich zu wenig. Die Ursache ist, wie @cwt schon angedeutet hat, das...
Like others already said, by default it reads everything.
The money quote line is this one:
107: 2026-02-28 21:00:07 INFO: scsi0: dirty-bitmap status: created new
Since the VM is not running and/or you have the stop backup mode, it can't make...