PowerStore: How to Get Node in and out of Service Mode

Verify that SSH is Enabled on the Management Console:

1. On the Management Console go to Settings > SSH Management on the left panel
2. Check the box next to Appliance, click Enable SSH button
   • To Disable SSH access, follow the same steps above and click the Disable SSH button.

Connect using SSH.

1. Connect to Appliance through any SSH terminal, using Cluster or Node Management IP address
   • To get an IP address on the Management Console, go to Settings > Network IPs > Management tab

Example SSH connection using Putty

Log in to your service account.

1. Use the username: service, and password
   • To create or reset Service Account password from Management Console, go to Settings > Service Account > Type password on New Service Password > Retype password on Verify New Service Password

Example SSH login using PuTTY

How to Check the Node is in Service Mode.

1. On node, enter command: 

   # svc_rescue_state list
   

    

 Example of Node in Normal Mode 

[SVC:service@XXXXXX-B user]$ svc_rescue_state list
Current Base OS status is Normal Mode, rc = 1.
Bootcount indicates the number of boots since the last successful boot.
current bootcount = 0, threshold is 3

Example of Node in Service Mode after rebooted

[SVC:service@XXXXXX-B user]$ svc_rescue_state list
Current CoreOS status is Service Mode, rc = 0.
current bootcount = 4
UI requested Service Mode

*** WARNING *** This Node is currently in Service Mode WARNING

How to get Node into Service Mode.

1. On the Node enter command: 

   svc_rescue_state set

    

2. To check bootcount = 4 or higher, run command:

   # svc_rescue_state list

    

3. To complete the procedure, reboot local node entering command: 

   # svc_node reboot local
   

    

   • Alternatively, the following commands can be run: 

• • If the node does not reboot after 15 minutes, the --force option can be used. The force option should not be used unless it is required. Forcing a Node to reboot when it is not ready can cause unpredictable results: 

    # svc_node reboot local --force
    

     

• • If the peer node must be rebooted, enter the command: 

    # svc_node reboot peer
    

     
  • To navigate between nodes, use command: 

    # svc_ssh_peer
    

To check if a node is in Service Mode, follow steps on How to Check if a Node is in Service Mode, and look for output: 

*** WARNING *** This Node is currently in Service Mode WARNING

How to get node from Service Mode into Normal Mode.

1. On the node on Service Mode, enter command: 

   # svc_rescue_state clear
   

    

   • Command output should report bootcount = 0
2. To complete the procedure, reboot node entering command: 

   # svc_node reboot local

    

   • • Alternatively, the node can be rebooted using the --force option or do it from the peer node, using commands mentioned previously.

Example of Node in Normal Mode: Output shows status is Normal Mode, and bootcount = 0

[SVC:service@XXXXXX-B user]$ svc_rescue_state list
Current Base OS status is Normal Mode, rc = 1.
Bootcount indicates the number of boots since the last successful boot.
current bootcount = 0, threshold is 3