Front pannel LED - Blue (slowly) blinking_OneFS v8.0.0.3

Is your servicelight just on?

isilon-1# isi servicelight list

Lnn  Enabled

-------------

1    Yes

2    No

3    No

-------------

Total: 3

Just turn it off like this:

isilon-1# isi servicelight modify --node-lnn 1 --enabled false

isilon-1# isi servicelight list

Lnn  Enabled

-------------

1    No

2    No

3    No

-------------

Total: 3

Hope this helps,

Chris Klosterman

chris.klosterman@datadobi.com

Principal SE, Datadobi

Hello Uehara,

To my knowledge the front panel is supposed to blink. The only documentation I could find was for the back panel though.

Using the node service light to determine which node needs attention https://support.emc.com/kb/454078

If I Recall Correctly (IIRC), You may also see blinking when a user is logged in via SSH to a given node.  That said, this is not normal for it to be blinking all the time, normally the lights should be on solid, as it sounds like they are for the rest of your nodes.

~Chris

Hi Chris,

Thank you for your reply. I asked the user to check whether "isi servicelight modify" command fixes the issue or not. The answer was "It did not work". The current status is as follows.

--------------------

# isi servicelight view --node-lnn=1

      Lnn: 1

  Enabled: No

Supported: Yes

  Present: Yes

    Valid: Yes

--------------------

That "isi servicelight" command is for the back servicelight according to the KB https://support.emc.com/kb/454078 .

Maybe this DECN thread may help:

Isilon x410 Nodes - Front Panel Lights

We could fix the issue by executing command "# /usr/bin/isi_hwtools/isi_fputil -l accent -s on"

Thank you for your info, Phil-san

Outputs of the command "# /usr/bin/isi_hwtools/isi_fputil -g" were as follows.

• A node with blue LED slowly blinking

led        state  blin

-------    -----  ----

logo      off    off

alert      off    off

button    off    off

cluster    off    off

• A node with steady blue LED on

led        state  blink

-------    -----  -----

logo      off    off

alert      off    off

button    off    off

cluster    on    off

BTW, does anybody know what the cluster state "on" indicates?

It means that node has joined the cluster.

If the front panel light blinks (like a slow heartbeat) and you know the node is joined to the cluster, you can go through these steps to fix it:

In the example below, node 3 had the issue in my cluster:

Isilon-19# isi_for_array -n 3 -s /usr/bin/isi_hwtools/isi_fputil -g

Isilon-3: led        state  blink

Isilon-3: -------    -----  -----

Isilon-3: logo      off    off

Isilon-3: alert      off    off

Isilon-3: button    off    off

Isilon-3: cluster    off    off

If the 'cluster' state is 'off' it will cause the slow heartbeat.  To flip the cluster state back to 'on' and stop the heartbeat, use this command:

Isilon-19# isi_for_array -n 3 -s /usr/bin/isi_hwtools/isi_fputil -l accent -s on

After this, the output of the previous command should change to:

Isilon-19# isi_for_array -n 3 -s /usr/bin/isi_hwtools/isi_fputil -g

Isilon-3: led        state  blink

Isilon-3: -------    -----  -----

Isilon-3: logo       off    off

Isilon-3: alert      off    off

Isilon-3: button     off    off

Isilon-3: cluster    on     off

Thank you Yan_Faubert!!
Your solution worked just fine for me!

SuperVertrix