We have a problem. We used a full Fibre Infotrend RAID controller and want to make a system with two Compaq ES40 alpha servers (O/S:TRU64/TRUCluster). ES40 have an Emulex HBA and Infotrend RAID use a Qla2200 chip.
- When we used a 1 RAID, 1 server, we had no problem.
- When we used a 1 RAID, 2 server with Trucluster, the Bios didn't read RAID Information.
In my view, it's a WWN problem so I updated RAID firmware. It makes the LUN ID each other. Bios didn't read the RAID information but O/S can see a RAID device and, after reboot it lost the RAID information.
What's wrong? Thanks.
Compaq has a support matrix for TruCluster using alphaservers. The most common HBA is the KGPSA adapter from Compaq. You should use the Compaq drivers too. On the alpha side you need to run WWIDMGR to provide a WWN alias for the boot devices in the SAN. The alphaserver must be set to "diagnostic" mode before you can run the WWIDMGR commands.
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.
Dig Deeper on Fibre Channel (FC) SAN
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 compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.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.