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how to turn on hba flags connected to EMC arrays

October 3rd, 2012

As per EMC recommendation following flags should be enabled for Vmware ESX hosts, if not there will be performance issues:

Common_Serial_Number(C)
SCSI_3(SC3)
SPC2_Protocol_Version(SPC2)

Here's the commands that'll do the trick:

sudo symmask -sid <sid> set hba_flags on C,SPC2,SC3 -enable -wwn <port wwn> -dir <dir number> -p <port number>

Good Luck!


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