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3022
January 25th, 2011 08:00
how to check the link b/w HBA wwn to VMAX FA wwn
I want to know the best procedure to check the link/connectivity is doing fine from host HBA to switch port to the VMAX FA port, I have brocade/webtools switch, I want to make sure the link is live all the way from HBA to VMAX FA.
Thanks.
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dynamox
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20.4K Posts
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January 25th, 2011 09:00
you can check FA login status
symmask -sid 123 list logins
if you don't see it logged-in, on the switch side run "switchShow" to see if the HBAs has logged-in there.
dynamox
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January 25th, 2011 09:00
unless your host is running solutions enabler, your system will not show up in this list.
Booyah2
2 Intern
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185 Posts
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January 25th, 2011 09:00
The symcfg command pasted below will give you an indication of connectivity. The paste did not format properly below.
it gives host name, host IP, host O/S, Symm S/N, and symm port.
There are many other symcli commands that will detail your connectivity to any Symm.
The symcli product guides (also available in CD format can be located on PowerLink.
or I can attach it to forum reply if you need me too.
symcfg list -connections -sorthost -sid 097
Host Symmetrix
------------------------------------------------- --------------------------
Node Name IP Address OS Name OS Revision ID Director Port
------------ --------------- -------- ----------- ------------ -------- ----
6I 172.23.195.65 WinNT 5.2.3790 000190100097 FA-3B 0
LBQA0074 172.23.195.74 WinNT 5.2.3790 000190100097 FA-3B 0
api105 172.23.192.105 SunOS 5.8 000190100097 FA-3A 0
api150 172.23.192.150 WinNT 5.2.3790 000190100097 FA-3A 0
api31 172.23.192.31 SunOS 5.8 000190100097 FA-7A 0
Booyah2
2 Intern
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185 Posts
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January 25th, 2011 09:00
It may be best option to use symcli to determine host and connectivity rather than calling a CE unless you are certain there is a failure to be addressed.
Booyah2
2 Intern
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185 Posts
1
January 25th, 2011 09:00
hello,
I'm not familiar with webtools, but your multipathing software (such as powerpath) will give you connectivity indicators.
If you have SMC loaded, i think it also will have connectivity indicators.
For a more granular diagnosis, the EMC CE can check the send / recieve light levels for the ports of concern, and he can also determine what WWNs / hosts are logged into the port.
SAN_AK
125 Posts
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January 25th, 2011 09:00
Like with tools available for how can I check them, i just want to make sure that the link is live and connectivity is intact.
symaccess list logins, will tell if these are actually logged int,
switchshow on brocade, if it says online and show the wwn then it is treated as connected ?
I do not know how to check in AIX host, if the HBAs are working, ofcourse if they are logged in, then this should be visible in symaccess list logins.
SAN_AK
125 Posts
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January 25th, 2011 10:00
Anything on brocade side, or just the switchshow is fine which tells checking this ?
8 8 id N4 Online F-Port 10:00:00:00:XX:XX:XX:XX
dynamox
9 Legend
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January 25th, 2011 10:00
fcstat fcs0
dynamox
9 Legend
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January 25th, 2011 10:00
HBA has logged-in ..looks good.
Harish_Vattikut
1 Message
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January 25th, 2011 12:00
There are 2 ways to go about it.
1.Logical connectivity:
On storage side : symmask -sid xxxx list logins
you should be able to see if the HBA is logged in
on switch side : switchshow | grep wwpn or nodefind wwpn
It should indicate the HBA is online/offline.
2.Physical connectivity: If you are not confident of doing the below procedure,please don't do it.Take the help of an EMC CE and the corresponding networking people.
Go to the data center to the FA of that VMAX.Unplug the FC path from the SFP that doesn't show up.
Look in to the FA and you should be able to see a red light in one of the 2slots into which this FC is plugged in to SFP.Similarly look into the fc cable with your fist wrapped around in dark.It should also have a red light glowing.So the FC cable that has the light should go into the sloot of the SFP that doesn't have the light.
If the FC or SFP doesn't have a red light at all,then SFP is bad one or its the problem with connectivity of the FC cable at the host side (loose connection).
So this should resolve the problem!
dynamox
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January 25th, 2011 12:00
Physical link connectivity needs to be checked with optical gear, it measures db loss. Just because you have a link light does not mean you have a properly working connection.