MDS chassis change alias issue ??

[jjpeyrache]

Hi

due to power outage we changed entire MDS swiches

including chassis and blades

after restoring configuration from FTP server

we are faced to no communication issue between

host,tape,storage thru MDS

after investigation when found that WWN has changed

so we need to reconfigure all alias

is it a know problem ? or are they any workaround on that ?

because doing same on brocade core switch

(replacing entire switch)

after restoring configuration , we doing nothing

after on brocade switch to restore connectivity

between hosts, tape an storage connected thru it

thanks in advance for any comments

JYP

[tblancha]

Which wwn are you talking about? The fwwn will definitely change after a chassis replacement. That is why is best to zone using the PWWN of the devices that are attaching. If you are zoning by PWWN, then it will stay in the config and when the config is moved over, the zone would be the same in either chassis

[jjpeyrache]

FWWN this is port scalable than pwwn because

changing of moving hba doesnt introduce any change

of zoning

why fwwn will change when replacing chassis ?

this is really a serious difference instead brocade

where chassis doesnt interfer with zoning,wwn

or something on san

JYP

[tblancha]

The FWWN is a derivative of the chassis so if the chassis changes, then the FWWN referencing the ports will change as well.