JUNOS Internet Software Network Operations Guide: Hardware
126 !
2. Example of Boot Messages If Routing Engine Fails to Boot
on page 150
show system storage
show system boot-messages
show log messages
3. Check for Compact Flash Media and Hard Disk Failure on
page 150
! When the Compact Flash Is Removed from the Boot List on
page 151
! Determine Why Compact Flash Did Not Mount on page 151
! When the Hard Disk Is Removed from the Boot List on
page 152
! Verify That the Hard Disk Did Not Mount on page 152
! Verify That the Hard Disk Is Missing from The Boot List on
page 153
! View Alarms When Media Is Removed from the Boot List on
page 153
4. Understand What Happens When Memory Failures Occur
on page 154
5. Check the Router File System and Boot Disk on page 154
show system storage
6. Display the Current Routing Engine Alarms on page 155
show chassis alarms
7. Display Error Messages in the System Log File on page 155
show log messages
8. Document the Events Prior to the Failure on page 156 Write down failure events as they occur. Turn on logging on
your system console.
Getting Routing Engine Hardware Information on page 157
1. Display Routing Engine Hardware Information on page 157
show chassis hardware
2. Locate the Routing Engine Serial Number ID Label on
page 158
Locate the Routing Engine serial number ID label. If you see
two serial numbers, give both to JTAC.
Removing a Routing Engine on page 161 The Routing Engine is hot-pluggable. Follow the procedures in
the applicable router hardware guide.
Note: The M5/M10 routers have a cover over the Routing
Engine. The M40e and M160 routers have a cover over all the
rear chassis components. Remember to remove the screws
(M5/M10, M20, M40e, and M160 routers) or captive screws
(T320 router and T640 routing node) next to the ejector clips
before you remove the Routing Engine.
Monitor Routing Engine Tasks Command or Action
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