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Deal with the fault that modifying the attributes of the HBA card in the AIX unsuccessfully

Publication Date:  2012-11-05 Views:  41 Downloads:  0
Issue Description
A certain site used our company’s storage to connect with the AIX midrange computer via the VIS6000, after installed the multiple paths software, it’s necessary to modify the attributes of the FC HVA card because it was the SAN group network, then execute the following command and the outcome was displayed:
JSYD_P570_Svr01:[/]# chdev -l fscsi0 -a dyntrk=yes
Method error (/usr/lib/methods/chggen):
        0514-029 Cannot perform the requested function because a
                 child device of the specified device is not in a correct state.
Alarm Information
None
Handling Process
Delete the logical device updisk0:
JSYD_P570_Svr01:[/]# rmdev -dl updisk0
updisk0 deleted
JSYD_P570_Svr01:[/]# lspv
hdisk0          00ccee8698e85616                    rootvg          active
hdisk1          none                                None          
hdisk2          none                                None          
hdisk3          none                                None
Then execute the operation to modify the attributes of the HBA card:
JSYD_P570_Svr01:[/]# chdev -a dyntrk=yes -l fscsi0
fscsi0 changed
JSYD_P570_Svr01:[/]# chdev -a fc_err_recov=fast_fail -l fscsi0
fscsi0 changed
Root Cause
Check the father device of the fscsi0:
JSYD_P570_Svr01:[/]# lsdev -p fscsi0
updisk0 Available 03-00-02 Huawei VIS6000 FC Disk Drive
According to the outcome of the report, it denotes that the son device’s status was incorrect, it may be caused by the updisk0 was using this device and it was in busy.
Suggestions
None

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