HP Integrity VM Accelerated Virtual I/O Overview

Command Description

ioscan –N Displays the agile view of the I/O configuration

ioscan –m dsf Maps legacy DSFs to agile DSFs and vice versa

ioscan –m lun Displays all the paths for a LUN

ioscan –P health Displays the health property of a LUN

iofind Utility to assist migration from legacy view to agile view

io_redirect_dsf Associates a new agile DSF with a set of legacy DSFs

scsimgr get_info Display information about a controller, target path, LUN path

or LUN

scsimgr get_stat Display statistics for a controller, target path, LUN path or LUN

scsimgr lun_map –D <dsf> Displays information about all lunpaths for a LUN

scsimgr get_attr –D <dsf> Displays attributes for a lun such as WWID, serial number,

LUN id, etc.

scsimgr set_devid <devid> -D <dsf> Sets the device identifier for a LUN

scsimgr get_devid –D <dsf> Displays the device identifier for a LUN

Conclusion

The initial Accelerated Virtual I/O solution that was released in December 2007 (with Integrity VM

3.5) has significantly improved the overall I/O performance of the Integrity VM product. Integrity VM

4.0 extends the AVIO solution to HP-UX 11iv3 Guests and HP-UX 11iv3 hosts. This release delivers

significant improvements in storage management capabilities, storage LUN and logical volume

capacity, high availability, and performance. This clearly demonstrates AVIO’s extensible I/O

architecture for seamless integration of new server and I/O adapter management and virtualization

capabilities.

In addition, the ability to manage AVIO adapters the same way as existing emulated SCSI and LAN

devices as well as new Agile devices (in HP-UX 11iv3) are managed ensures that HP Integrity VM

system administrators can take full advantage of AVIO with minimal effort. Finally, AVIO continues to

deliver the same level of guest isolation as previous HP Integrity VM releases, so critical applications

or workloads running in one guest will not be impacted by other guest operating systems.

For more information

For additional information, visit the following site:

• The Next Generation Mass Storage Stack HP-UX 11iv3

http://www.docs.hp.com/en/MassStorageStack/The_Next_Generation_Mass_Storage_Stac

k.pdf

• HP Technical Documentation – HP Virtual Server Environment (VSE)

http://www.docs.hp.com/en/vse.html

Packard Development Company

, L.P. The information contained

herein is subject to change without notice. The only warranties for HP products and

services are set forth in the express warranty statements accompanying such

products and services. Nothing herein should be construed as constituting an

additional warranty. HP shall not be liable for technical or editorial errors or

omissions contained herein.

Linux is a U.S. registered trademark of Linus Torvalds. Microsoft and Windows are

U.S. registered trademarks of Microsoft Corporation. UNIX is a registered

trademark of The Open Group.

October 2008