Mitel Sx-2000 Llightware 32, Release 1.0 Technicians Handbook

Troubleshooting and Repair
141
Troubleshooting
7. Hold down PANEL ENABLE and press A RESET.
8. Enter:
MSS
If hard disk errors are reported, you must replace the 
hard disk. See Removing and Replacing a Faulty Hard 
Disk on page 143. If hard disk errors are not reported and 
if your RSD copy of the hard disk did not contain the 
latest database, restore the current database from your 
DATA SAVE RSD. See Restoring the Database from a 
DATA SAVE Backup on page 128 (note: you may need 
your Mitel Options...

Technician’s Handbook
142
3. Hold down PANEL ENABLE and press ACTIVITY 
FREEZE ON.
4. Enter PARTITION first from the active plane then from 
the inactive plane.
5. Enter FILE STAT RED from both planes. Both planes 
should be isolated. But, you can continue with this 
procedure providing that the active plane is isolated.
6. From the active plane, enter:
VOL SET SYSUSER READ ONLY
7. Log on to the inactive plane and select maintenance 
mode.
8. Enter:
VOL DISMOUNT SYSUSER
9. Enter:
VOL FORMAT DISK SYSUSER...

Troubleshooting and Repair
143
Troubleshooting
13. Log on to the inactive plane and select maintenance 
mode.
14. Enter:
JOIN
This message appears: 
JOIN COMPLETE
15. Log on to the active plane and select maintenance 
mode.
16. Enter:
JOIN
Note: If the system will not join, check for redundant file 
corruption, page 133.
This message appears: 
JOIN COMPLETE
17. Wait 20 minutes, then, enter FILE STAT REDUN first 
from the active plane and then from the inactive plane to 
ensure that the redundant file...

Technician’s Handbook
144
5. Enter VOL DISABLE SYSUSER on the plane with the 
faulty hard disk (inactive plane).
6. Power down the control node (see page 136).
7. Remove the cabinet sleeve.
Wear an anti-static wrist strap.
8. Remove the power cable from rear of the hard drive. 
Disconnect the power cable from the rear of the RSD 
drive directly below the hard disk drive being replaced. 
In a redundant control node, it isn’t necessary to remove 
the power cable from the RSD drive if you are replacing...

Troubleshooting and Repair
145
Troubleshooting
18. If the operating system software was not installed on the 
replacement hard disk at the factory, you must load the 
operating system software. For non-redundant systems, 
see page 171; for redundant systems, see 
page 180. 

Technician’s Handbook
146
Replacing Circuit Cards
Hazardous voltages can exist on installed peripheral cards 
even when power is removed from the system. Grasp cards 
by the lock latches only. Do not touch the sides of cards.
You can replace peripheral interface or DSU cards while the 
node is operating.
Removing a Card
1. Enter:
BUSY 
Select the COURTESY DOWN option.
2. To confirm that all circuits are in the busy state, enter:
STATE 
Wear an anti-static wrist strap whenever you handle 
circuit cards....

Troubleshooting and Repair
147
Troubleshooting
4. Push the upper and lower latches away from you until 
they are vertical and the card is locked in place.
5. To return the circuits to service, enter:
RTS 
Replacing a Main Controller Card
When you replace a Main Controller (MC) card, ensure that 
the programmed MC card and the installed MC card match. 
If they do not match, no links are assigned.
1. Remove the front panels.
2. Perform a DATA SAVE to RSD. See Making a DATA 
SAVE Backup on page 164.
3. If...

Technician’s Handbook
148
7. Disconnect the (inactive plane) power cord from the 
power source.
Wear an anti-static wrist strap whenever you handle 
circuit cards.
8. Replace the old MC card with the new MC card.
Note:If you have an ETI card installed, disconnect and then 
reconnect the cables as required.
9. Power up the control node (see page 138).
10. If you have a redundant system:
- From the inactive plane, enter FILE STAT REDUN.
- When the system is IN SYNCH, hold down PANEL 
ENABLE and press...

Troubleshooting and Repair
149
Troubleshooting
Replacing a Control Resource Card (CRC)
1. If you have a redundant system, hold down PANEL 
ENABLE and press ACTIVITY FREEZE ON.
Power down the control node before removing the 
Control Resource card. Powering down the node 
takes the system out of service.
2. Power down the main control node (see page 136).
Wear an anti-static wrist strap whenever you handle 
circuit cards.
3. If the system has a CRCIII, disconnect the two modular 
cables from the faceplate...

Technician’s Handbook
150
Replacing CEPT or DS1 Formatter Cards with 
DS1/CEPT I or II Cards
If your system software is Lightware 31 R1.0 or higher, use 
the CEPT Formatter II (MC269CA) or DS1/T1 Formatter II 
(MC270CA) cards for replacement.
If your system software is Q10.7.14 or higher, use the CEPT 
Formatter I (MC264CA) or DS1/T1 Formatter I (MC263CA) 
cards for replacement.
1. Connect a laptop computer to the card by using a 
straight through serial cable or anull modem adapter. 
2. If using a...