Improvements in vSphere with a new paravirtualized adapter
New paravirtualized SCSI adapter is more optimized SCSI adapter than the LSI virtual Adapter. This adapter and many more other enhancements are part of new virtual machine hardware version 7 in vSphere 4.
VMware’s new paravirtualized SCSI adapter (pvSCSI) offers 12% improvement in throughput at 18% less CPU cost compared to LSI virtual adapter.
The new pvSCSI is not supported on every OS. Paravirtual SCSI adapters are supported on the following guest operating systems:
- Windows Server 2008
- Windows Server 2003
- Red Hat Enterprise Linux (RHEL) 5
To configure the pvSCSI adapter to be used by your disk, you’ll have to follow this procedure:
01.) Launch a vSphere Client and log in to an ESX host system and select a virtual machine, or create a new one.
02.) Make sure that the OS is supported
03.) In the vSphere Client, right-click on the virtual machine and click Edit Settings.
04.) Click the Hardware tab > Add > select Hard Disk > Click Next
05.) Choose any one of the available options and click next
06.) Specify the options your require. Options vary depending on which type of disk you chose.
07.) Choose a Virtual Device Node between SCSI (1:0) to SCSI (3:15) and specify whether you want to use Independent mode, and click Next.
08.) Click Finish to finish the process and exit the Add Hardware wizard. A new disk and controller are created.
09.) Select the newly created controller and click Change Type.
10.) Click VMware Paravirtual and click OK. Then Exit and power On the VM.
11.) Install VMware Tools. VMware Tools includes the PVSCSI driver.
12.) Scan and format the hard disk.
UPDATE: The boot disks are supported with vSphere 4 – Update 1 now – See how-to do the changement here. Apparently booting from a disk attached to a PVSCSI adapter is not supported. The system software must be installed on a disk attached to an adapter that does support bootable disk.
Source: VMware
Related Posts :
Do I choose the PVSCSI or LSI Logic virtual adapter on ESX 4.0 for non-IO intensive workloads? ...
VMware Paravirtualized SCSI (PVSCSI driver) Introduced with vSphere 4 this driver can speed ...
Speed up your Guest VM with paravirtual SCSI adapters: PVSCSI is part of vSphere 4 I wrote an a ...
How-to avoid BSOD (Blue Screen of Death) when you want to change from LSI Logic paralel into PVS ...
One of the enhancements in ESX 3.5 Update 4 is the support for vmxnet. The support for this ada ...
Other posts from Server Virtualization
- New upgrade webpage for ESXi 4 pushes us to the right direction?
- You know how to collect diag information when your ESXi does PSOD?
- Use PVSCSI or not for lower intensive workloads
- Hardening guides for vSphere 4
- NTLDR missing - silly but can happend
- How To Shrink VMware Virtual Disk Files and disable shrinking
- vSphere Quick Start guide bonus download..
- ESXi - the past, the present and the future
- Farm commander - management tool for VI and TS or Citrix Farms
- How to collect log information from vCenter Server 4
- How to know where is my VM if vCenter is down?
- New patches for ESX 4 and ESXi 4
- Use VMware Converter to import 3rd party VMs, for example Virtual Iron's VMs
- Windows XP installation as a VM - trouble to see the disk or not?
- Vmware HCL for ESXi 4
- Time keeping for Windows VM's best practices
- Virtu-Al releasing 3rd update of PowerPack
- Not even tried Appspeed and new version is already available!
- Starwind active-active HA availability storage
- Multiple update VMware Tools how-to
- Re-release of ESX 4 update 1
- New major update to ESX 3 - Update 5
- Jumbo frames are supported only on VMxnet 3 and enhanced VMxnet
- Windows 2008 R2 with Hyper-V installed on Server with Xeon 5500 Nehalem processor
- How to increase the amount of RAM assigned to the VMware ESX service console
- Back in bussiness
- Changement from LSilogic paralel into pvscsi
- vCloud Express by VMware
- Project Onyx, for non scripting people...
- New feature with VMware vSphere Update 1
