Just some more vSphere information
Here is some information about vSphere that I thought would be good to share with the world. As with everything else this is just a drop in the bucket. I''
From the archive. Originally published on dailyhypervisor.com on May 5, 2009.
Here is some information about vSphere that I thought would be good to share with the world. As with everything else this is just a drop in the bucket. I''m currently working on putting together some upgrade videos and screenshots so take a look back and hopefully I will have them done by the end of the week.
Here is some interesting information about vSpehere and what it supports keep in mind these are just some notes I jotted down:
ESX 4 Hosts (vSphere Host) 256VM''s per host 64 Cores per host 512GB Ram per host
vSphere VMs (Hardware version 7) 8 vCPUs 256GB Ram VMDirectPath I/O Hot Plug Support (Supports CPU''s and Memory) ESX 2.x and 3.x VM support Paravirtual SCSI adapter MSCS 2008 Persistent Reservations in vmkernel LSI Logic SAS (Virtual SAS controller)
Networking Improvements New iSCSI stack with 10-30% improved performance TCPIP 2 Support (Based on FreeBSD 6.1 / IPv6 / locking and threading capabilties) VMXNet3 MSI/MSI-X Receive Side Scaling VLAN offloading VMware Directpath I/O
Storage Improvements SCSI-3 Compliant VMFS still SCSI-2 Target PortGroup Support (TPGS) Asymmetric Logical Unit (ALUA) Pluggable Storage Architecture (PSA) Updated iSCSI stack Native SATA
Service Console 64-bit, 2.6 based Linux kernel compatible with RHEL 5.2 Supports for both 32bit and 64bit applications root file system stored in VMDK vmkernel runs and owns device drivers only 64-bit Address Space layout Randomization (ASLR) No Linux dev packagers and libraries
CPU Enhanced Intel step down Enhanced AMD Power Now
Security Trusted Platform Module (TPM) Digitally signed and validated modules Memory integrity techniques with microprocessor capabilities to protect against buffer-overflow
Guided Consolidation 500 Simultaneous Physical Machines Modular Plug-in can be installed on different machine
Coverter
Physical / Virtual / 3rd party Server 2008 Support Covert Hyper-V Machines to VM''s
Update Manager
ESX / ESXi and Virtual Appliance Upgrades Upgrade Virtual Hardware VMware Tools Base Line Groups
Upgrade vcenter steps
No SQL 2000 Support 2.x & 3.x Upgade Path Upgrade vCenter Upgrade Update Manager Use Upgrade Manager to Upgrade Hosts Upgrade VMware Tools, then the VMware Hardware.
vSphere Host Update Utility 3.x to 4.x Dosn''t Upgrade VMFS Datastores or VMs Installs with vSphere client Support Rollback for ESX only Can be used to install patch releases to standalone hosts Copies Script and ISO to ESX hosts reboots and installs