Hi FlorianI don't really have answer for you sorry, but thought I would let you know that I've got a bunch of Debian servers (mainly LAMPS) installed on both enterprise ESXi 5 hosts with and without attached storage, in one case a FC SAN. In addition my home server (white-box) is running the free version of ESXi 5 and running 4X Debian servers as guests and I can say that in all cases they perform very well and don't have any performance issues... in fact they really fly on ESXi.
I can confirm that in all cases the HDD controller is LSI Parallel and I also get SG_IO bad/missing sense data come up. Don't have VM tools installed except for one server, but it doesn't make much difference when they are headless from what I can see anyway.
Are you installing a base version such as the netinstall ISO? Also is this just from a stock install or are you installing other packages or custom software?
I'm interested in this SG_IO error now myself, so if you do find anything let us know and good luck with it all.
Regards Keith On 18/01/12 20:37, Florian Götz wrote:
Hi everyone, I got a serious problem with a Debian install on an ESXi 5.0 Server.Debian installs fine and seems to run fine, but the harddisk performance is really low.I got latency times of about 44 seconds, tested with bonnie++. What I´ve done:- New machine in ESXi, harddisk controller "LSI Parallel" (Debian uses the LSI53c1030 driver (mptlinux v 3.04.12))- hdparm -i /dev/sda says: /dev/sda SG_IO bad / missing sense data.The latest drivers from LSI are 4.28. I don´t know if it is a driver problem oder VMWare Problem. I also did a new install with harddisk controller setting "LSI SAS", but no performance improvement.The VMWare ESXi Server should be alright, because a SLES11 Instance that runs on the same machine and same datastore performs well. LSI provides new drivers (v 4.28) but RHEL/SLES only and a conversion via alien and later install of the deb-File brought no change.Anyone got a clue how to get this running? Best regards Florian Götz