Fabric switch replacement 2X4100>>4900

[dinesh singh rawat]

I have two 4100(32 port) brocade swith in my environment. now I want to replace both with one 4900(64 port). we are using port based zoning. can some one help me how can i do this.

[IBaltay]

Hi
your original fabric is one 2 SAN switches fabric pls?

[dinesh singh rawat]

no the fabric is with 11 switches. both the switches are subordinate only.

[IBaltay]

Ok,
then you can add the new switches into the existing fabric first, then recable online the existing hosts (one fabric at the time if all hosts have redundant connections - with the multipath failover direction only via the second switch). After both old switches recabling to the new switches they can be disabled and then remove from both fabrics

all needed SAN info should be here:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00403562/c00403562.pdf?jumpid=reg_R1002_USEN