Activating zone set - disks offline/online 1

[nbadmin]

I wonder if anyone can advise on this please?
We use McData switches and mostly Emulex and JNI HBAs. Every time we activate a zone set we see in the syslogs;

scsi: [ID 243001 kern.info] /ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 (fcp0):
Lun=0 for target=6f0413 disappeared

or

jnic: [ID 170727 kern.notice] jnic1: Target3: Port 662813 (WWN 500104F00099936F:50010e6e6e6E370) offline.
jnic: [ID 168491 kern.notice] jnic1: Port 612E13 (WWN 500060E802C73204:500060E802C73204) available.
jnic: [ID 857524 kern.notice] jnic1: Port 660813 supports FCP-2 error recovery.
jnic: [ID 611728 kern.notice] jnic1: Target2: Port 660813 (WWN 500104F0009997D:500104F000000F37E) online

These servers are not in the zone set being activated.
I think this is due to RCSN going to the whole fabric rather than just the zone members but could there be a loss of data and is there a way of preventing it?

Many thanks in advance...

 

[comtec17]

You are correct in assuming that this is a "Registered State Change Notification" response. The only way to disable it is by going to HBA config and disabling RSCN.

 

[nbadmin]

Does this imply that if we disable the RSCN on the HBA's they will not pickup zone changes?
Are there other implications of the RSCN disable?
Thanks again...