Well, I was wrong about samba. It's the second time I move the big file that it goes fast. Maybe coming from l2arc the second time.
:(
I've got a 4th machine with 4 drives I can take the raid card out of. More results in a bit..
Well, here's one for you guys. I added to my smb.conf
strict allocate = yes
And got the copies from the file server in a vm from 64mbs to 130mbs
Wow!!! Big difference!
As for pveperf?
I've no more ideas. It's just dead slow on 3 machines.
Raid 10 with 4 drives.
From this site. https://icesquare.com/wordpress/how-to-improve-zfs-performance/
I got this command, dd if=/dev/zero of=./file.out bs=1M count=10k
Here are the results, I don't know if they really mean anything.
dd if=/dev/zero of=./file.out bs=1M count=10k
10240+0...
Hmm, I just ran the test on the test machine and it's similar results. Curious that the machine have little in common.
The test machine is a consumer board with 6gps sata ports with 32 gig ram. I just now put a samsung 850 pro in it, setup the log and cache and had about the same increase.
CPU...
From the proxmox docs: The maximum size of a log device should be about half the size of physical memory.
So I figured about 1/2 of the 120 was about right.. Best I change it?
Here's what I got splitting up the ssd drive to log and cache 60 gig each.
CPU BOGOMIPS: 73415.82
REGEX/SECOND: 1358791
HD SIZE: 3495.79 GB (rpool/ROOT/pve-1)
FSYNCS/SECOND: 251.21
DNS EXT: 52.79 ms
DNS INT: 73.73 ms
That's a bit better.. Not near...
I've 4 sata re4 WD Hard drives. An ssd larc, and 96 gig of ram.
Am wanting to get better results on fsyncs.
I read you can add barrier=0 to fstab, but my install from proxmox cd has an fstab entry that looks a bit strange to me. Could one of you give me an example with this fstab file?
# <file...
I would like to tell you I found an answer to this, but I did not. Happens on multiple Proxmox host. All backing up to usb drive in my case. All doing "shutdown" upon backup. As a temp workaround, I also setup periodic snapshots until a better answer arrives..
However, you seem to have the...
I did a long smart test and a esfsck -vc /dev/sda1
I do not find errors on the drive.
INFO: Finished Backup of VM 100 (01:58:12)
INFO: Starting Backup of VM 101 (qemu)
INFO: status = running
INFO: update VM 101: -lock backup
INFO: backup mode: stop
INFO: ionice priority: 7
INFO: stopping vm...
Single host
Proxmox 4.1
Backing up to a usb drive.
All three vms stop to backup.
Other vms seem to backup ok, but one of them keeps getting the error below and I was hopeing you guys might have an idea where to look for the issue.
start failed: command '/usr/bin/systemd-run --scope --slice...
It does not appear proxmox 4.0 is shutting down the vms cleanly when a shutdown -r now is issued.
ubuntu guest
last
root pts/0 xxx-xxx-xxx-xxx. Tue Dec 8 11:50 - crash (02:17)
My question is, is it supposed to? Or is that just a web gui thing?
Ok, so this begs the question, I assume it's usually better to leave the default setting of 1/2 your ram rather than limit it like this. Is this not the general consensus?
Looks reasonable. I might have gone to /var/lib/vz/images/id and done ls -all
on them. But it looks as if the gui has you figured out.
Now then, I'm going to let you google on how to mount that drive as I've never mounted a usb stick from the command line. Heck I've never stuck a usb stick in a...
Look at the bottom of the wiki page http://pve.proxmox.com/wiki/Upgrade_from_3.x_to_4.0
Basically, backup /etc/pve
backup all vms
On New machine, copy the /etc/pve.storeage.cfg (I've never done this part, I just redo it)
restore the vms. Easy on kvm guest to qmrestore name-of-backup-file 120...
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