raziel99 wrote:
> Hi there !
> this is what i have:
>
> server: p650 6M2
> os: aix 5.2 ml1
> fc adapter: 2 adapters - IBM 6239 with Firmware version 1.81X1
> fc switch: migrating from mcdata-ds24m2 to cisco mds9140. one adapter
> connected to the mcdata, and one connected to the new cisco mds9140
>
> my problem: the fc adapter does not connect properly to the cisco
> mds9140 switch. there is a link, but the switch gui interface shows
> link failure. when i examined the fc-scsi-protocol characteristics i
> noticed a difference between the 2 adapters:
>
> the command I issued: "lsattr -EHl fscsi0 (or fscsi1)"
> the adapter that is connected to the old mcdata switch, and is working
> properly has the property "attach=switch" and the adapter that is
> connected to the new cisco switch and has a problem has the property
> "attach=al". this property is NOT user-settable, so i don't know what
> to do in order to change this value.
>
> i also tried to change the admin mode of the port in the switch - to
> fix it as an F port, and fix it to 2gb speed, but that didn't help.
>
> is there anything else you can advise?
> thanks,
> yaron
Check and compare with
$ lsattr -EHl fcs0
$ lsattr -EHl fcs1
the fc-hba settings.

If you get no link on the fc-hba attached to your cisco you might have
to cross the cable on one end. Its pretty easy to build and attach the
cable the "wrong way"
Example:
wrong:
hba switch cisco
TX RX TX TX
RX TX RX RX

correct:
hba switch cisco
TX -> RX TX -> RX
RX -> TX RX -> TX


hth
Hajo