What is the fundamental difference between VxDMP and MPXIO? Sun supports the two of them running together so is...
there a performance penalty attributed to doing this? How do they work?
Veritas' VxDMP and Sun's MPXIO are both path management products. They are used to load balance I/O when you have more than one host bus adapter connected to shared storage in a storage array. The fundamental difference is that MPXIO is from Sun and can be included as part of the Kernel of Solaris. Veritas' VXDMP is a layered product that sits on top of Solaris to provide the same functionality. VxDMP usually comes as part of the Veritas file management suite that includes support for the Veritas file system on top of Solaris. You can use both products. One for file management (VxVM) and the other for path failover.
From the versions of both products I have seen running, Veritas has the better GUI. MPXIO has an advantage in that it is able to be updated using dynamic update but the Veritas solution has been available much longer and is proven.
It's a matter of personal preference.
Editor's note: Do you agree with this expert's response? If you have more to share, post it in one of our .bphAaR2qhqA^0@/searchstorage>discussion forums.
Related Q&A from Christopher Poelker
RAID can allow for better storage performance and higher availability, and there are many different RAID types. Read a comparison of RAID levels, as ...continue reading
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.continue reading
SAN expert Chris Poelker compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.