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even distorted figures would be good as a "will be better than " reading if possible? I realise messing with prof isn't a good idea though :)

Actually, it is quite easy :) Copy /usr/bin/pveperf onto the machine and then install perl. Once perl has been installed, install the following modules; Bundle::LWM, File::Sync and then Net::DNS. After that, pveperf should run. Note: to install *something similar* (i.e. I cannot exactly...

Hi Mikael, Do you have pveperf performance results for any of these cards? I intend to run some pretty IO intensive (i.e. Database) virtual machines on 4 x 300GB SAS 15K disks and I don't want the RAID card to be the bottleneck (as it currently is it seems). Thanks

Hi all, Anyone know of a decent RAID card for 4x300GB disks in a Dell R410? Preferably RAID 10? I have an SAS6/I thing (SAS1068E) with no battery backed cache and RAID 0 gets a couple of hundred FSYNCS a second :( Any recommendations? It has to be dell supplied... Thanks, Col

*Solved* Any idea how to get FSYNCs/SECOND on CentOS? Not really a proxmox question per-sa, but I am interested in running pveperf on other OS, just whilst I am investigating some hardware issues. Any idea how to do that, namely centos? Col

Yeah - I am happy to give you guys root access to the machine and DRAC if it would help?

Nope, hardware RAID 1 is even worse (110). Some interesting threads though: http://lists.us.dell.com/pipermail/linux-poweredge/2008-May/036283.html and http://lists.us.dell.com/pipermail/linux-precision/2007-June/001187.html I have tried with the latest (.32) kernel but the same result.

I thought RAID0 was the fastest (but with no redundancy). I will try RAID 1 with all the disks. Installing LSIutil did turn up the fact that write caching was turned off - turning that on increased the FSYNCS to, wait for it, I know, exciting isn't it: 255/Second. Woo.

So hardware RAID 0 (across 4 300GB 15x SAS disks) is still pretty poor: pveperf / CPU BOGOMIPS: 72352.63 REGEX/SECOND: 767962 HD SIZE: 94.49 GB (/dev/pve/root) BUFFERED READS: 438.09 MB/sec AVERAGE SEEK TIME: 4.02 ms FSYNCS/SECOND: 189.28 DNS EXT...

Ooops, this doesn't look good :( hdparm -I /dev/sda /dev/sda1: HDIO_DRIVE_CMD(identify) failed: Input/output error

Nice - what raid was that? Unfortunately the card that I have (in the Dell R410) only offers RAID 1 or 0 and I don't want to give up all my disks to RAID1. Unfortunately only having 2 disks in RAID 1 means I cannot install Debian :(

Hi all, Yeah, I know, you should use hardware RAID. However, there is a configuration issue (http://forum.proxmox.com/threads/3244-Problem-reboot-after-installation-on-Dell-R410-with-4-SAS-disks?highlight=SAS) with the hardware RAID so I thought I would turn it off and see what happens...

I don't use CentOS, but I would be surprised if nobody on this forum did? Anyway, you might try http://wiki.openvz.org/Download/template/precreated but at your own risk ;)

The best thing you can do is go ahead and try it - one container for mysql and one for apache/php. Make sure there is a template available for your OS of choice (which is?) from http://pve.proxmox.com/wiki/Get_Virtual_Appliances. Download it (if it isn't already there) using the proxmox GUI...

By Java I mean Java the programming language produced by Sun, not JavaScript. You don't *need* virtio with OpenVZ because the IO isn't virtualised, hence the performance benefit of OpenVZ. You will get the best bang for your buck using containers - would you have one container for each...

Hiya, If it helps, I have a single physical machine with 8GB RAM and 1 Xeon quad core CPU and I run about 6 containers (wiki, ldap, web site etc.), 3 Linux KVM machines for Java apps (cannot get JDK to run in a container) and 2 windows KVM machines. Admittedly, none of the machines are...

I think you should read up on openvz - it has to do a lot less work (it doesn't virtualize anything) than KVM (which has to virtualise everything). Sure, you can get performance enhancements (like the virtio drivers) but openvz will still be quite a bit faster (at least it is on my machine)...

Ah, another OVH machine (I have several as well). I don't think their hardware RAID cards are particularly impressive. It looks like a kimsufi though - I managed about 500 FSYNCs on a RAID5 card on their kimsufi. You might be interested in http://forums.ovh.co.uk/showthread.php?t=3534...

I am not sure - I don't have physical access to the box. I do know: - the drive that can be selected to boot in the bios is the raid card (hardware RAID1 with 2 300GB SAS 15k) which appears as /dev/sdc - other OSs install fine, which rules out (to my mind) hardware issues - installing...

No, it doesn't display grub. It doesn't matter which device I choose to boot from - the behaviour is the same as you get with a brand new computer, before you have installed the OS.