Are transceivers in general hot swappable, and if not, how do I find out if these are?
Using these adapters
665243-B21, HP Ethernet 10Gb 2-port 560FLR-SFP+
665249-B21, HP Ethernet 10Gb 2-port 560SFP+
and these transceivers
455883-B21, HP BLc 10GB SR SFP+ opt
PSFP10-2321SF, PEAKOPTICAL SFP+ 10Km 1310nm DFB w/DDMI
Yes, they're completely hot-swappable.
Think of them the same way as cables (note the link lights). Same for SFP+ direct-attach cables. It wouldn't make sense for them not to be hot-swappable. Heck, most network switches don't even have power switches :)
Generally yes they are, certainly I've never come across any that weren't - in particular I know for a fact that the top three on your list are, not used the bottom one so can't say with the same degree of confidence.
