Are PCIe cadrs (NIC) really hot-plugable?

Years ago, I've heard something about PCIe standard.

Cards should support "native hot-plug” functionality. So, is it true?

MB = INTEL SRV XEON S5520HCR
NIC= INTEL E10G41AT2
OS = DSS V6 Version: 6.0up90.8101.5845 64bit

Adding another NIC will require a reboot in DSS V6.

Adding NICs is one problem, but replacing them is even more complicated.
Now, I know!:mad:

Some information of old unused card (eth4) is still somewere in setup data and new card is recognised as new one (eth5), doesn't matter, it is the same type. Reset network settings is required and setup all NICs again.

So native hot-plugable PCIe practically doesn't work!

Quote:

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Originally Posted by Toni Bizjak

Years ago, I've heard something about PCIe standard.

Cards should support "native hot-plug” functionality. So, is it true?

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Wikipedia says yes, so it must be true! ;)

I think you have confused:

1 - physical PCIe hot-plug features with the ability for an OS to recognize new PCIe added via hot-plug.

2 - the ability of an OS to swap an existing device binding to the new hardware.


"Hot-plug" does not mean "auto-replace" or "no boot required for swap".

This is why, I posed this question in the OS forum.
I've managed all by "classic" procedure (when others sweet slept).