having similar performance problem on vSphere esx 4
my storage is SAN EMC AX 4-5
migrate operation slow, Consumed Host CPU: high on VM idle, Consumed Host Memory: high, slow shutdown of VM-s,...
while our two same hosts on ESXi and local storage, worked fine
the issue is about perfrormance degradation from esx3.5 to vsphere4 on the SAME storage, no matter if it`s local or SAN storage.
so, if you tell that performance is ok on local storage with esxi (i assume you mean esx4i) and it`s bad on san storage, then i`m not sure if this is the same issue.
do you have a chance to compare esx3.5 vs. esx4 performance on the san storage ?
if esx4 performs worse and not above ~25MB/s for reads, then you have the issue being discussed here.
Today we remove ESX 4.0 and install esxi 4.0. on same storage. VM works well, no performance issues.
i`d say this is resolved - seems VMware has done good work!
have just tested ESX400-200912401-BG (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1016291) and console read performance went up from 30MB/s to 160MB/s !
can somebody confirm to make sure i did no mistake on measuring ?
i can`t believe that number yet
I'm running two ESXi white boxes for about a year now. One is 3.5 one is 4.0, both have HORRIBLE disk performance and that is intended. Or does anybody believe that a major company like VMWare pushes this product on the market without testing its disk performance? Does VMWare really think SMB admins are that stupid?
I'm glad I didn't spend my 2009 budget on a ProLiant + ESXi License.
Gonna check the ESX400-200912401-BG this weekend. I'm curious if they reconsidered their ESXi Disk I/O politics.
EDIT: I can hardly see any difference, I downloaded and then uploaded a 5GB file, see the attached screenshot. Hardware: WD Raid Drives, ICH9R, Intel NIC, HP ProCurve Switch. So... local storage in ESXi is still a no go!
Funny... I can troughput almost twice the data at the same time here on my homenetwork from my workstation to my HTPC. Microsoft's SMB stinks?... hell no.... it rocks compared to ESXi!