replace cmdu on rel 21.19 m51

[bpg1]

hi

anyone have this on a pdf or hardcopy. i know it is a while ago-

 

[johnpoole]

a 51, so you only have a single cmdu.. not that bad as long as the cust knows your going to have down time.. you have to start with the install floppies.. 17 or 18 of them.. the keycodes and a good backup.. power down the cpu shelf. if it's DC use the rear switch only.. remove the cmdu, take the dongle off, (looks like a watch battery) put it on the new one.. connect a term to j25 on the rear panel put disk one in (install), power up... it will boot into an install menu.. option E, do a new install, enter the key code disk when prompted, change disk when prompted, when prompted pick restore the database.. you will burn the prom and eproms during that process.. once alls steps are complete, the install disk will boot back into service.. it's important that you let the software do the soft boot..

when i did those on a weekly bases, it took just under 2 hours.. the 1st one i did took almost 8... if your backup does not restore, you have to RETYPE the DATABASE. step one in the old books was to Print the complete data base to hard copy, may be better to make a soft copy..

john poole
bellsouth business
columbia,sc

 

[johnpoole]

i did have one crash during a backup, since the backup disk was trash, we changed the plates out from the old harddrive to the new... that allowed us to recover the cdb, do a backup. we did not leave the patched harddrive in service.. it may have lasted, but we did not trust it.

good luck

john poole
bellsouth business
columbia,sc