How does proxmox handle VE IOWAIT?

Giovanni

Renowned Member
Apr 1, 2009
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Hello,

I was wondering how PVE handles IOwaits, we all know that server load can increase considerably if several VE's on a node are accessing the disks and exhausting resources.

I wanted to know if promox (since its a bare metal software) would use a SWAP partition for VE activities on the hard drive or destination.

For example, imagine the following setup:

1) Quad core xeon 2.4Ghz
500GB 7200RPM hdd
40GB SSD

Since we have 2 VE's on this node, and sometimes server load (on the VE goes to 30+) and at the node it goes to 4.00, is there any way possible that we can use the SSD as a "buffer" for data being written/accessed from the 500GB (main storage for VE's). Would this idea have todo with swapping partition?

Thanks
 
Use shared storage/NFS that is hosted on a ZFS server with SSD cache (FreeBSD 8 should support this).

Rob