[SOLVED] really low I/O speeds (<2MB/s)

[udo]

Ok. im going to reinstall proxmox from scratch.

Hi,
why reinstall? pve isn't windows!

Normaly you can change most things also afterwards. But if you use bios-raid, mir is absolute right, you should disable it.


Udo

 

[mir]

Hi,
why reinstall? pve isn't windows!
Normaly you can change most things also afterwards

Even with Linux it is hard to change file system on the root file system which is the case here. A reinstall in this particular situation will be a lot quicker.

 

[FuriousRage]

Ok, back up with the reinstalled system.. a slight speed increase

root@Caelus:/# dd if=/dev/zero of=/storage/test.out bs=1M count=8192 conv=fdatasync
8192+0 records in
8192+0 records out
8589934592 bytes (8.6 GB) copied, 56.1914 s, 153 MB/s
root@Caelus:/#

Altho.. I cannot now re-activate my subscription since it was locked to the old one.

 

[mir]

Altho.. I cannot now re-activate my subscription since it was locked to the old one.

See http://shop.maurer-it.com/knowledgebase.php?action=displayarticle&id=6

 

[mir]

Ok, back up with the reinstalled system.. a slight speed increase

What does pveperf show now?
Did you remember the mount options for ext4?

 

[FuriousRage]

Thank you for all the help.. now my proxmox is running like normal and not crawling with 14MB/s

 

[FuriousRage]

What does pveperf show now?
Did you remember the mount options for ext4?

It shows now:

root@Caelus:/# pveperf /storage/
CPU BOGOMIPS: 25602.72
it REGEX/SECOND: 2411270
HD SIZE: 7392.85 GB (/dev/md0)
BUFFERED READS: 643.98 MB/sec
AVERAGE SEEK TIME: 16.74 ms
FSYNCS/SECOND: 399.52
DNS EXT: 88.29 ms
DNS INT: 47.21 ms (Gremlin)

 

[mir]

And still a mdraid 5?
If this is the case then performance looks good;-)

 

[FuriousRage]

And still a mdraid 5?
If this is the case then performance looks good;-)

Yes, i went "back" to raid 5 while i re-did the whole shebangz.