Hi,
I need to update my esx server, but i don't know how.
Thanks
update meaning patch or upgrade to vSphere4?
You can start here
http://www.vmware.com/pdf/vsphere4/r40_u1/vsp_40_u1_upgrade_guide.pdf
http://www.vmware.com/pdf/vsphere4/r40/vsp_40_esxupdate.pdf
http://www.vmware.com/pdf/vi3_35/esx_3/r35/vi3_35_25_esxupdate.pdf