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How do I erase the Z-drive on Nortel Option 11c PBX older than release 25?

Posted on 2009-04-15
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Last Modified: 2013-12-27
we have acquired about 10 Nortel Meridian Option 11c PBX's that we plan to use for small disaster recovery systems in our customer's sites if needbe..

we are loading the software via PCMCIA delivery card onto the daughterboards just fine but are finding that in some cases there is an old database stored on the "z" drive of the SSC card which is Not erased when performing the ctrl-B FBUG test procedures on the daughter flash board..

I have seen documents that indicate I must erase the Z-drive from PDT...

the override procedures using the baud rate switches on the front of the SSC card only seem to apply to release 25 and newer systems... my helmsman documents for anything release 25 or newer have a procedure that does work...  

however many of these systems are release 23 and release 22 variants and this procedure does not seem to be supported or ducmented in my Security management documents...

is there another procedure for activating PDT in these older systems? these are unsupported by Nortel and we are not a reseller of Nortel Products.. however we do service these systems,..

can anyone help with how to gain the access we need on these older release systems?
-Christopher
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Question by:cadillackid
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cadillackid earned 0 total points
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I fixed this issue myself...

I found that during bootup of the option 11 if on Port 0 of the SSC card..  as i was watching the boot sequence..  I entered a bunch of ctrl-C and ctrl-X characters that it would inject a "syntax error" and drop me to the vxworks shell.

I was then able to issue the zdrvEraseall  command and successfully erase the Z-drive in the system..
 
I then rebooted the system and was able to normally load the database in
-Christopher
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