Sun Microsystems, Inc.  Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
   Home | Current Systems | Former STK Products | EOL Systems | Components | General Info | Search | Feedback

Asset ID: 1-72-1010768.1
Update Date:2009-09-21
Keywords:

Solution Type  Problem Resolution Sure

Solution  1010768.1 :   Sun StorEdge[TM] Sun StorADE Utility Reports Agent Event: "The model/vendor/serial# of the backplane of this array has changed since it was discovered"  


Related Items
  • Sun Storage 6960 Array
  •  
  • Sun Storage 6910 Array
  •  
  • Sun Storage T3 Array
  •  
  • Sun Storage T3+ Array
  •  
  • Sun Storage 3960 Array
  •  
  • Sun Storage 3910 Array
  •  
Related Categories
  • GCS>Sun Microsystems>Storage - Disk>Modular Disk - 3xxx Arrays
  •  

PreviouslyPublishedAs
214889


Symptoms
After a sun StorEdge[TM] T3 firmware upgrade/downgrade, the StorADE utility repeatedly reports the Agent Event as follows:
  "ERR key value of t3h changed: The model/vendor/serial# of the backplane
of this array has changed since it was discovered."

Notifications, if enabled, are also generated once every 8 hours due
to aggregation of the event. Various "t3.ComponentRemove" events corresponding
to the controller, loop cards, pcu(power and cooling unit), and midplane of this T3 are also recorded in the Event Log.



Resolution
The T3 in question was probably upgraded from 2.x to 3.1.x firmware or, the reverse, it was downgraded from 3.1.x firmware back to 2.x. The difference in how the firmware presents Model and Vendor caused StorADE to think that the T3 has been replaced.
To resolve StorADE's confusion, simply delete the device and add it back.

1. Use StorADE BUI:

  http://hostname:7654

2. Delete the T3:
a. Click the checkbox corresponding to the T3 device.
b. Click "Delete Selected" button

   Administration
|__ General Maintenance
|__ Maintain Device

3. Add the T3 back:
a. Click "Sun T3".
b. Enter device information and click the "Add" button.

   Administration
|__ General Maintenance
|__ Add Device

Please note: For StorADE version 2.2.00.03 or lower there is no option to "Add Device"

The procedure to add a device should be made using the CLI:

Switch user to root:

 su -

Add the storage device using the options:

 -n <name>
-i <ip address>
-p <password>

Example output:

 /opt/SUNWstade/bin/ras_admin t3_add -n t3b2 -i 192.168.0.42 -p sun1
 Device t3b2 added !
$VAR1 = {
'_name' => 'device7',
'name' => 't3b2',
'type' => 't3',
'units' => 2,
'ctrl_model' => 5015710,
'ipno' => '192.168.0.42',
'class' => 'storage.t3',
'ip' => '192.168.0.42',
'key' => '0x301.5015709.070557',
'telnet' => '%73%75%6e%31',
'active' => 'Y',
'wwn' => '50020f230001139d',
'host' => undef,
'wwn2' => '50020f2300011398',
'userLabel' => 't3b'
};

End

Prior to installing T3 firmware, you should disable StorADE monitoring of the T3 (as detailed in the corresponding T3 patch README). Before proceeding to install new T3 firmware, it is a good idea to first delete the T3 from the device list of StorADE. Upon completion of the T3 firmware install, add the T3 back to StorADE device list.



Additional Information
Root Cause:

T3+ firmware 3.1.x has changed how it reports fruVendor and fruModel, which
StorADE uses as part of the "key" to uniquely identify the backplane of the
array as well as other components. StorADE uses the format "vendor.model.serial" as the key to identify a device.

For example, a T3+ named "t3h", which was running firmware 2.1.6 before
2004-06-02, has the following entry in rasagent.conf:

[device3]
active=Y
class=storage.t3
ctrl_model=501-5710-02(51)
host=
ip=129.158.136.73
ipno=129.158.136.73
key=slr-mi.370-3990-01-e-f1.038688 <---- KEY
mgmtLevel=D
name=t3h
time_added=2004-06-01 13:50:33
type=t3
units=2
userLabel=t3b
wwn=50020f2300009720
wwn2=50020f230000921a

The key "slr-mi.370-3990-01-e-f1.038688" corresponds to how the 2.1.x
firmware reports Model/Vendor/Serial information either by CLI(Command Line Interpreter) or Web access:

t3h:/:<5>id read u1
Revision : 0000
Manufacture Week: 00302001
Serial Number : 038688 <------------- serial
Vendor ID : SLR-MI <------------- vendor
Model ID : 370-3990-01-E-F1 <---- model

The T3+ "t3h" was subsequently upgraded to firmware 3.1.2. StorADE started
reporting agent event "ERR key value of t3h changed" soon after. This is because it is no longer seeing the same string in the fruVendor and fruModel fields.

Upon deleting "t3h" from StorADE's device list and then adding it back, the
new entry in rasagent.conf shows the following:

[device8]
active=Y
class=storage.t3
ctrl_model=5015710
host=
ip=t3h
ipno=129.158.136.73
key=0x301.3703990.038688 <---- NEW KEY!
name=t3h
telnet=
time_added=2004-06-03 13:56:03
type=t3
units=2
userLabel=t3b
wwn=50020f2300009720
wwn2=50020f230000921a

This key corresponds to the new way that 3.1.x firmware reports Vendor and
Model:

t3h:/:<5>id read u1
Description: ASSY, T3 MIDPLANE, 9 SLOT
Short Name: T3-9_MdPn
Serial Number: 038688 <---------------- serial
Part Number: 3703990 <---------------- model
Dash Level: 01
Rev Level: E
Vendor Name: 0x301 <---------------- vendor
Manufacture Loc: T3 Generated Prom
Timestamp: Wed Aug 01 08:00:00 SGT 2001



Product
Sun StorageTek T3+ Array
Sun StorageTek 6900 Series
Sun StorageTek 3960
Sun StorageTek 3900 Series
Sun StorageTek 3910
Sun StorageTek 6960
Sun StorageTek 6910
Sun StorageTek T3 Array

Internal Comments
For internal Sun use only.

Author: [email protected]


T3, StorADE, model, vendor, serial, backplane
Previously Published As
76715

Change History
Date: 2007-09-02
User Name: 71396
Action: Approved
Comment: Performed final review of article.

Updated product name and trademarking.
Publishing.
Version: 4
Date: 2007-09-02
User Name: 71396
Action: Accept
Comment:
Version: 0
Date: 2007-08-31
User Name: 109562
Action: Approved
Comment: OK
Version: 0
Product_uuid
2a714b10-0a18-11d6-86e2-d56b387d4fbf|Sun StorageTek T3+ Array
09a6d778-16f2-11d7-8802-94885c013b6c|Sun StorageTek 6900 Series
05b0b61b-e1ba-4e07-a932-a782f3b92213|Sun StorageTek 3960
04ccc2c2-16a1-11d7-9f9a-f83fdd2e2f1b|Sun StorageTek 3900 Series
f651ba09-f2d9-4dbc-918c-ad530528e4dc|Sun StorageTek 3910
86b6cc47-00d7-43f1-8efd-81690a8d5b6f|Sun StorageTek 6960
681b08b4-d683-4f9e-b8ba-cbbb87b01d05|Sun StorageTek 6910
2a6d7d50-0a18-11d6-8e0b-f0bd33b24928|Sun StorageTek T3 Array

Attachments
This solution has no attachment
  Copyright © 2011 Sun Microsystems, Inc.  All rights reserved.
 Feedback