High disk loads

[diceair]

Hi there.

Let me first start of by stating my specs

1x drive for the proxmox itself and 2x other drives for VM and backups

My main hard drive constantly flashes. How can I reduce the load on the drive so that my backup speeds can be a bit faster. I have 4 oses installed and non eof them is accessing the drive and so on.

 

[diceair]

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/pve-root 58G 4.1G 51G 8% /
tmpfs 16G 0 16G 0% /lib/init/rw
udev 16G 272K 16G 1% /dev
tmpfs 16G 22M 16G 1% /dev/shm
/dev/mapper/pve-data 128G 9.4G 119G 8% /var/lib/vz
/dev/sda1 495M 35M 436M 8% /boot
/dev/sdc1 1.8T 745G 997G 43% /disk2
//192.168.16.201/g$/backup
1.9T 680G 1.2T 37% /mnt/SambaShare
/dev/fuse 30M 16K 30M 1% /etc/pve
192.168.16.201:/backup
1.9T 680G 1.2T 37% /mnt/pve/backups

 

[mmenaz]

Is your server swapping?
# free -m

 

[diceair]

total used free shared buffers cached
Mem: 32145 31981 164 0 28 10740
-/+ buffers/cache: 21211 10933
Swap: 29823 0 29823

 

[diceair]

total used free shared buffers cached
Mem: 32145 31981 164 0 28 10740
-/+ buffers/cache: 21211 10933
Swap: 29823 0 29823

forgot to mention I'm using KVM for all my vm machines

 

[udo]

Hi there.

Let me first start of by stating my specs

1x drive for the proxmox itself and 2x other drives for VM and backups

My main hard drive constantly flashes. How can I reduce the load on the drive so that my backup speeds can be a bit faster. I have 4 oses installed and non eof them is accessing the drive and so on.

Hi,
how big is the load? What wait-values shows top?
And what throughput do you see with iostat?

apt-get install sysstat
iostat -dm 5 sda sdb sdc

Udo

 

[diceair]

Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 12.50 0.06 0.02 1873 657
sdb 624.16 35.81 0.27 1104882 8358
sdc 13.48 0.01 4.94 243 152431


maybe the light on the server is the actual vm drive being busy

 

[udo]

Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 12.50 0.06 0.02 1873 657
sdb 624.16 35.81 0.27 1104882 8358
sdc 13.48 0.01 4.94 243 152431


maybe the light on the server is the actual vm drive being busy

Hi,
this values are the first output, right? Because 1104882MB/35.81=8.5h!
with "iostat -dm 5" you see every 5 seconds new values - the first one shows the read/write since startup (and not an real throughput).
Use one of the followings outputs to see the actual IO.

But the output shows, that not mucht traffic is on sda (system).

Udo

 

[diceair]

Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 0.40 0.00 0.01 0 0
sdb 9.60 0.00 0.12 0 0
sdc 0.00 0.00 0.00 0 0
dm-0 1.60 0.00 0.01 0 0
dm-1 8.00 0.00 0.12 0 0
dm-4 0.00 0.00 0.00 0 0
dm-5 0.00 0.00 0.00 0 0
dm-6 0.20 0.00 0.00 0 0
dm-7 0.00 0.00 0.00 0 0
dm-8 0.00 0.00 0.00 0 0
dm-2 1.40 0.00 0.00 0 0
dm-3 0.00 0.00 0.00 0 0


ok it's not that high. was just worried cause my drive is making some rattling noise. maybe because it's busy even if the drive usage is that low. lol