Hi,  In response to your questions:   Assuming that the priority is the same for all the fabric members, 10_TAPE has the lowest WWN and will become Principal once PSAN_A_1 and PSAN_A are removed  Will The fabric be segmented since PSAN_A is the priciple switch which switch will become the principle switch? Will zoning be effected? Theoretically, a Build Fabric process is online fabricwise and zoning should not be affected.  Unless you force it to be principal, it won't.  5300_1_A is having ISL to PSAN_A and we are looking to move it to DCX_1_A.  The proposed solution is to lay a new cable from DCX_1_A to 5300_1_A and then  go ahead with disconnecting from PSAN_A.   Will this cause the fabric to go segmented? Will 5300_1_A become the principle switch?    Traffic should not be segmented and no, 5300_1_A won't become Principal by default.  Once said this, I recommend you to, prior to removing any cable, change the Principal switch. I would make a DCX to be the principal. The procedure is simple (and non-disruptive):    Once you've established a new Principal switch non-disruptively, you should not have any problems removing those switchs.   Rgds, Felipon
Hi Guys,   Please see the fabric below     1: fffc01 10:00:00:05:1e:04:c5:c2 10.18.5.27      0.0.0.0        >"PSAN_A"   2: fffc02 50:00:51:e3:93:90:fe:0e 0.0.0.0         0.0.0.0         "fcr_fd_2"   3: fffc03 50:00:51:e3:93:8e:ff:14 0.0.0.0         0.0.0.0         "fcr_xd_3_16"   4: fffc04 50:00:51:e3:9b:b0:af:15 0.0.0.0         0.0.0.0         "fcr_xd_4_10"   5: fffc05 50:00:51:e3:93:8e:ff:10 0.0.0.0         0.0.0.0         "fcr_xd_5_11"   6: fffc06 10:00:00:05:1e:04:ce:8e 10.18.6.80      0.0.0.0         "PSAN_A_1"   7: fffc07 10:00:00:05:1e:09:e2:f2 10.17.224.20    0.0.0.0         "10_TAPE"  10: fffc0a 10:00:00:05:1e:e7:9f:cd 10.18.104.58    0.0.0.0         "P_5300_A"  12: fffc0c 10:00:00:05:1e:a7:4a:e4 10.18.14.60     0.0.0.0         "5300_1_A"  14: fffc0e 10:00:00:05:1e:e5:71:00 10.18.126.163   0.0.0.0         "DCX_1_A"  25: fffc19 10:00:00:05:33:85:c7:00 10.18.15.4      0.0.0.0         "DCX_A_2" 160: fffca0 50:00:51:e3:9b:b2:ae:0e 0.0.0.0         0.0.0.0         "fd_160"  we have migrated all the cables off of PSAN_A & PSAN_A_1. Now want to remove 2 switches off of the fabric.   In such a case if the cables are disconnected which switch would become the principle switch? Will The fabric be segmented since PSAN_A is the priciple switch which switch will become the principle switch? Will zoning be effected?  The switches DCX_1_A and DCX_1_2 are DCX's and all the cables have been moved to DCX_1_A then will it become a principle switch?  5300_1_A is having ISL to PSAN_A and we are looking to move it to DCX_1_A.   The proposed solution is to lay a new cable from DCX_1_A to 5300_1_A and then  go ahead with disconnecting from PSAN_A.  Will this cause the fabric to go segmented? Will 5300_1_A become the principle switch?      -Thanks in Advance
Removing ISL's between 4800 and DCX's