Description

SRX4600 has OFFLINE button on its chassis. Users may observe a console message after pressing the OFFLINE button.

This article explains the expected behavior during an offline state.


For more details, refer to SRX4600Services Gateway Hardware Guide page 22.

Symptoms

Example output after pressing OFFLINE button on SRX4600:
Note: This output is from SRX4600 with 19.3R1 

root@srx4600> INFO: rcu_sched self-detected stall on CPU
        0: (20999 ticks this GP) idle=001/140000000000002/0 softirq=0/0 fqs=6480 
         (t=21000 jiffies g=148143 c=148142 q=28310)
ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata5.00: failed command: WRITE DMA
ata5.00: cmd ca/00:20:1c:a6:a1/00:00:00:00:00/eb tag 3 dma 16384 out
         res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata5.00: status: { DRDY }
ata5.00: revalidation failed (errno=-5)
ata5.00: revalidation failed (errno=-5)
INFO: rcu_sched self-detected stall on CPU
        0: (83815 ticks this GP) idle=001/140000000000002/0 softirq=0/0 fqs=24797 
         (t=84003 jiffies g=148143 c=148142 q=120646)
<SNIP>

Solution

When pressing OFFLINE button for more than 4 seconds, SRX turns into OFFLINE state.

Note that SRX4600 is still supplied power during OFFLINE state. Therefore, console messages keep appearing on the console output.

This behavior is by design. Any console messages during OFFLINE state can be ignored.

SRX4600 will not accept any command during the offline state. Disconnect/reconnect the power cable for SRX4600 to get back online. 

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