HP-UX Logical Volume Manager and MirrorDisk/UX Release Notes HP-UX 11i v3 (September 2011)

HP Insight Remote Support Software
HP strongly recommends that you install HP Insight Remote Support software to complete the
installation or upgrade of your product and to enable enhanced delivery of your HP Warranty,
HP Care Pack Service or HP contractual support agreement. HP Insight Remote Support supplements
your monitoring, 24x7 to ensure maximum system availability by providing intelligent event
diagnosis, and automatic, secure submission of hardware event notifications to HP, which will
initiate a fast and accurate resolution, based on your product’s service level. Notifications may be
sent to your authorized HP Channel Partner for on-site service, if configured and available in your
country. The software is available in two variants:
• HP Insight Remote Support Standard: This software supports server and storage devices and
is optimized for environments with 1-50 servers. Ideal for customers who can benefit from
proactive notification, but do not need proactive service delivery and integration with a
management platform.
• HP Insight Remote Support Advanced: This software provides comprehensive remote monitoring
and proactive service support for nearly all HP servers, storage, network, and SAN
environments, plus selected non-HP servers that have a support obligation with HP. It is
integrated with HP Systems Insight Manager. A dedicated server is recommended to host both
HP Systems Insight Manager and HP Insight Remote Support Advanced.
Go to http://www.hp.com/go/insightremotesupport for details on both versions.
To download the software, go to Software Depot: http://hp.com/go/softwaredepot
Select Insight Remote Support from the menu on the right.
Compatibility issues
Version 2.x volume groups
• Version 2.2 volume groups are not recognized on previous releases of HP-UX, including
versions of HP-UX 11i v3 prior to the March 2010 Update release. Version 2.1 volume groups
are not recognized on previous releases of HP-UX, including versions of HP-UX 11i v3 prior
to the September 2008 release. Version 1.0 volume groups are supported on all supported
versions of HP-UX, including 11i v1, 11i v2, and 11i v3.
• The following HP-UX product does not currently support Version 2.x volume groups:
◦ HP Process Resource Manager (HP PRM)
This product plans to add support of Version 2.x volume groups. For the most recent information
on this products, see the IT Resource Center (ITRC) at http://itrc.hp.com, or consult the release
notes for the specific product.
Encrypted Volume and File System (EVFS) v1.1 and greater supports Version 2.x volume groups.
Moving from HP-UX 11i v2 to HP-UX 11i v3
If you are migrating a system from HP-UX 11i v2 to HP-UX 11i v3, see the LVM migration white
paper described in “Related documentation”. It contains information on migrating an LVM
configuration from the legacy naming model to the agile naming model.
Existing LVM configurations created on HP-UX 11i v2 continue to work on HP-UX 11i v3 under the
legacy naming model. However, there is a change in behavior for Alternate Links (PVLinks):
In HP-UX 11i v3, management of multipathed devices is available outside of LVM using the next
generation mass storage stack. By default, the next generation mass storage stack distributes I/O
requests across all available paths to a multipathed disk, even when using legacy device special
files. Using LVM with persistent or legacy device special files might cause I/O requests to be sent
across alternate links, even if the links are not configured as PVLinks; this does not introduce any
errors, but it does differ from PVLink behavior in previous releases.
HP Insight Remote Support Software 9