Sir Alan spake: > NPIV has nothing to do with sharing across LPARs. > Sharing is simply a matter of giving an multiple LPARs > access to different subchannels the same FCP chpid.
I was thinking the same thing, however ... Your SAN team may need to zone or mask things differently if multiple LPARs have access to a device and you're not using NPIV. Case in point for me is one volume (one LUN, a disk) that I need to share across five VM systems, each in its own LPAR, one physical box, one CHPID (per path), one WWPN (per path). The host presents one entity to the fabric, without NPIV, so when I (try to) bring the volume on-line in another LPAR, it fails because it is busy. I don't know SAN fabric capabilities well enough to know if this is supposed to work without special tricks, or without them, or at all. I suspect that with NPIV it will work except that our SAN team would have to zone the LUN to multiple hosts. (But we want to do that eventually anyway.) It stretches the whole disk sharing thing beyond System z and z/VM and lets Sun, HP, AIX, and the rest enjoy the pain. This is disk, not tape, if that matters. -- R; ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
