Since Solaris 2[.0] and SunOS 5.0 came out, one of the hardware characteristics of Solaris was the remembering of device numbering. If you put HBAs or NICs into slots a, b, and c, they were numbers 0, 1, and 2, or however the bus probing found them. Then, if you removed the device in slot b and added a different one in slot d, the last one was device 3, and device 1 would be missing.
This has its challenges as across systems in trying to get them to look the same, while keeping a single system the same as hardware is added and removed. With LDoms, this does not happen. Lets say I add to a guest mynet1 at vsw-primary, mynet2 at vsw-primary, and mynet3 at vswprimary, they turn out to be vnet0, vnet1, and vnet2. If I drop mynet2 at vsw-primary, and add mynet4 at vsw-primary, the latter will end up as vnet1. This may not as critical for networks, however, I have heard the same happens for vdisks. How do you handle this situation? A customer is struggling with this and is keeping all intermediate vdisks in place even if they are 'empty', just to keep the vdisk ordering consistent over time. Is there a CR or RFE to make the configuration more static? Thanks Steffen
