AIX doesn't detect TS3200 tape library

UNIX AIX
1

Hi all,
I have a problem here

root@host1 / # lsdev -Cc tape
rmt0 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
rmt1 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
smc0 Defined 07-00-02 IBM 3573 Tape Medium Changer (FCP)
root@host1 / # cfgmgr -l fcs2
Method error (/usr/lib/methods/cfgefscsi -l fscsi2 ):
        0514-061 Cannot find a child device.
root@host1 / # cfgmgr
Method error (/usr/lib/methods/cfgefscsi -l fscsi2 ):
        0514-061 Cannot find a child device.
Method error (/etc/methods/cfgtsmdd -l lb0 ):
        0514-015 Parent or connection required.
Method error (/etc/methods/cfgtsmdd -l mt0 ):
        0514-015 Parent or connection required.
Method error (/etc/methods/cfgtsmdd -l mt1 ):
        0514-015 Parent or connection required.
root@host1 / # lsdev -Cc tape
rmt0 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
rmt1 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
smc0 Defined 07-00-02 IBM 3573 Tape Medium Changer (FCP)
root@host1 / # lsdev -Cc adapter
fcs0    Available 04-00 4Gb FC PCI Express Adapter (df1000fe)
fcs1    Available 05-00 4Gb FC PCI Express Adapter (df1000fe)
fcs2    Available 07-00 4Gb FC PCI Express Adapter (df1000fe)

which AIX doesn't detect the Tape library it seems that everything is okay I ran cfgmgr multiple times with no luck yet , any idea.
Output truncated for brevity

2

Hi
You have a problem on SAN side.
No errors in errpt ?
check lsattr -El fscsi2
what is there in attach section ?

You can try also
fcstat fcs2
check for errors.

For me it is looking like cable/san problem

3

Yes It was a cabling Issue , I solved it by unplug and plug cables again.