Limitation on number of LUNs?

[Guest Nick Payne]

I've noticed that if I zone too many LUNs from a SAN to a Windows server,

the server gets very slow to boot. It just sits at the Win2003 splash screen

for 15 minutes or longer before progressing to eventually the login screen.

Also, once a large number of disks have been zoned, disk management gets to

the state where it does not allow any disks to be partitioned.

 

I've tried with Dell 2950 and 6850 servers running Win2003 Enterprise x64

with SP2 and all current patches, and Emulex LPe11002 or LPe1105 HBAs with

the current EMC driver from Emulex. SAN is an EMC CX380. If I zone only a

dozen or so LUNs, then there is no problem - server boots normally and disks

can be partitioned normally. However, if I zone a large number of LUNs - I

zoned 60 as a test - then the problems I describe above happen. If I remove

the extra LUNs then the problem disappears.

 

Nick