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Modifying FCS Database Content
Is it possible to modify the FCS database information on an MDS switch? We have a 5 switch fabric which we are monitoring with ECC 5.2 SP5. We recently changed the IP address of the mgmt0 port on some of the switches in the fabric but ECC still shows the old address in Properties and in StorageScope reports. If you rediscover the switch using the new IP address it updates, but then seems to change the properties of the other switches in the fabric - it seems to pick up the IP address of the other switches from somewhere in the MDS. I'm guessing it queries the FCS database - when I query it from the MDS CLI, it shows two Switch MGMT-Addresses - the new one and the old one. You end up going round in circles. You rediscover switch A which corrects the IP address but changes switch B to the old address. You then rediscover switch B which corrects that one but changes switch A back to its old address. It took me a day of thinking I was going mad to find out what was happening!
AranH1
2.2K Posts
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July 30th, 2008 10:00
What do you see if you issue 'show int mgmt0' on the switch?
ConnectrixHelpe
259 Posts
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July 30th, 2008 11:00
paul232
12 Posts
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July 31st, 2008 02:00
No I didn't remove the old IP address first. I assumed I was just changing it - I didn't realise I would need to remove the old one first.
The issue is really what is seen in ECC - I can access the switches via the new addresses OK but ECC shows the old address when you select properties or in Storagescope reports. It also occasionally issues "Statistics collection failed" messages which I was guessing may be because it is trying to use the old IP address
AranH1
2.2K Posts
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July 31st, 2008 07:00
Can you post the results of 'show int mgmt0' ?
ConnectrixHelpe
259 Posts
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July 31st, 2008 09:00
The MGT port should really only have and display one IP address for it. I'm not sure how via CLI or the GUI you could assign multiple addresses to it but you never can tell there could be a way. An output of the MGT port configuration as previously noted is the way to confirm that.
I talked to one of the guys in ECC support and he stated that it is very possible you have multiple entries for the switch in the ECC database and this could be causing the issue. He recommended in deleting all the associated switches and rediscovering them. This should resolve the issue.
Thank you.
paul232
12 Posts
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July 31st, 2008 10:00
Each VSAN shows two Switch MGMT-Addresses under the FCS data - I think this is what ECC is discovering (unless the old IP address is stored somewhere else on the switch as well)
I have been round the loop of deleting all the switches out of ECC and rediscovering them but it discovers the first switch in the fabric OK, then changes the discovered IP of the first switch when it moves on to the next
sh int mgmt0
mgmt0 is up
Hardware is FastEthernet
Address is 0013.1957.e080
Internet address is 207.37.210.45/27
MTU 1500 bytes, BW 100 Mbps full Duplex
453967754 packets input, 1518768615 bytes
0 multicast frames, 0 compressed
1 input errors, 13688 frame, 0 overrun 0 fifo
300492652 packets output, 2101371907 bytes, 0 underruns
0 output errors, 63821 collisions, 432 fifo
0 carrier errors
DXSHRSW05# sh fcs data
FCS Local Database in VSAN: 1
------------------------------
Switch WWN : 20:01:00:0d:ec:1f:c3:c1
Switch Domain Id : 0x01(1)
Switch Mgmt-Addresses : snmp://145.16.19.179/eth-ip
http://145.16.19.179/eth-ip
snmp://207.37.210.45/eth-ip
http://207.37.210.45/eth-ip
AranH1
2.2K Posts
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July 31st, 2008 10:00
Example:
mds9509(config)# fcs register
mds9509(config-fcs-register)# platform name vsan
mds9509(config-fcs-register-attrib)# no mgmt-addr w.x.y.z
I think you will have to do that for each vsan.
paul232
12 Posts
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August 4th, 2008 03:00
AranH1
2.2K Posts
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August 4th, 2008 07:00
Well I am stuck, and if CiscoKid can't answer the question I suggest you try the Cisco Support Forums.
Go to:
http://forum.cisco.com/eforum/servlet/NetProf?page=Data_Center_discussion
... and select the Storage Networking section. I have had a few issues resolved there that I couldn't find the answer to elsewhere.
Sorry I couldn't help,
Aran
paul232
12 Posts
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August 4th, 2008 08:00
ConnectrixHelpe
259 Posts
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August 4th, 2008 08:00
What version of SAN-OS is installed on the switches?
Thank you.
paul232
12 Posts
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August 4th, 2008 09:00
I haven't raised a support case yet - I thought I may get a quick and esy answer here! Looks like that is my next course of action.
ConnectrixHelpe
259 Posts
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August 4th, 2008 09:00
Thank you.
ConnectrixHelpe
259 Posts
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August 4th, 2008 09:00
If it still fails, the issue is on the FCS on the MDS switch. 3.1(2) was the first release it started listing virtual devices so it may be a bug. I've emailed Cisco to see if the display showing two IP addresses is normal or not.
Have you opened a support case with EMC on this issue?
paul232
12 Posts
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August 5th, 2008 03:00