kojimk1

updated

10 years ago

K

kojimk1

2 Intern

•

60 Posts

0

27272

January 12th, 2017 22:00

Unity service mode

Hi all,

What is cause to reach service mode?

  • AndreD Dell

    Moderator

    •

    239 Posts

    19646

    3

    Posted January 12th, 2017 23:00

    The most common cause would be a tripped boot counter.

    If an SP reboots for the same reason a certain number of times, it will go into Service Mode.

    You can check the status over CLI with the service command:

    svc_rescue_state -l

    In this list you will see the "count" columns which tells you the current value for your system.

    The "max" and "action" columns tell you what will happen (action) if the max is reached.

    Example: 3 appinit type reboots will put the SP in service mode (or rescue mode).

    The first thing to try in these cases is to clear the counters and reboot the SP:

    svc_rescue_state -c

    svc_shutdown -r

    If the SP continues rebooting after this (rolling reboots) then it's time to open an SR.

  • Rainer_EMC

    6 Operator

    •

    8645 Posts

    19573

    0

    Posted January 16th, 2017 19:00

    or the user manually putting an SP into service mode

  • dad4mad11

    1 Message

    15844

    0

    Posted November 6th, 2019 09:00

    Andre,

    This will be a "dumb" question.... but I tasked to do this with little experience in this realm.

    Is it necessary to use a 2008 Server (or higher)?

    Cannot connect Windows 10 CMD line, is this correct.

    I have downloaded and am using the Unity Connection Utility 2.1.1.0.0688, and was able to connect using my WIN10 Laptop. a;; I want to do is reset the boot counter.

     

  • Rainer_EMC

    6 Operator

    •

    8645 Posts

    15820

    0

    Posted November 7th, 2019 06:00

    you dont need connection utility for that

    simply ssh into the SP to reset the boot counters
    If its the SP that correnty doesnt own the mgmt then you ssh into the mgmt SP and do a ssh peer from there to login via the backplane

    I would suggest though to open a service request and work with service to find out why the system booted into service mode

  • deepakrao3

    1 Message

    9338

    0

    Posted February 10th, 2021 11:00

    Thank you very much, this worked wonderfully. Hurray !!!

  • DELL-Sam L

    Community Manager

    •

    8118 Posts

    •

    34619 Points

    8539

    0

    Posted April 2nd, 2021 10:00

    Hello sogoodlife,

    Are you connected to the service port or the lan management port?  You should be connected to the bottom port with the wrench & the tool should connect to the SP.

  • sogoodlife

    1 Rookie

    •

    6 Posts

    8497

    0

    Posted April 3rd, 2021 00:00

    yes i connected bottom only , still no luck

  • DELL-Sam L

    Community Manager

    •

    8118 Posts

    •

    34619 Points

    8399

    0

    Posted April 5th, 2021 09:00

    Hello sogoodlife,

    Here is a link to a kb that maybe of assistance.

    https://dell.to/39J3MIF

  • sogoodlife

    1 Rookie

    •

    6 Posts

    8367

    0

    Posted April 6th, 2021 00:00

    hey buddy 

     

    its says error " This article is permission based. Find another article "

     

    pls help

  • DELL-Sam L

    Community Manager

    •

    8118 Posts

    •

    34619 Points

    1878

    1

    Posted April 6th, 2021 08:00

    Hello sogoodlife,

    Here is what the link states.

    Dell EMC Unity: (Master) Storage Processor boots into service mode (Dell EMC Correctable)

    Summary: Dell EMC Unity: (Master) Storage Processor boots into service mode (Dell EMC Correctable)

    Audience Level: Customer

    Article Content


    Symptoms
    Clear counters and degraded state

    SP boots into service mode
    Cause
    Boot counter being incremented to the maximum value, a BMC fault, or because a degraded state indicator is stored in NVRAM or the SSD boot device.
    Resolution
    svc_rescue_state -c
    svc_rescue_state -d
    Additional Information
    ---
    Partner Notes
    Typically when an SP boots into service mode, it is because of a boot counter being incremented to the maximum value, a BMC fault, or because a degraded state indicator is stored in NVRAM or the SSD boot device. The following two commands can resolve these issues:

    svc_rescue_state -c
    svc_rescue_state -d

    For more information about switches for svc_rescue_state, run svc_rescue_state -h

    It is important to investigate the root cause before running either of these commands to understand what the exact rammifications of the issue are, including if the system might chain reload or return to service mode anyways. after the reboot for some reason. The following KB contains a document which lists possible reasons an SP might boot into service mode: https://dell.to/3urxwC2
    These KBs outline some more specific reasons an SP might be booting into service mode: 
    486533 : Dell EMC Unity: Storage Processor (SP) boots into Service Mode due to APPINIT counter not being cleared at Manufacturing Facility (Dell EMC Correctable) https://dell.to/2Rc8MPP
    489214 : Dell EMC Unity: SP in service mode due to frequent manual reboot(Dell EMC Correctable) https://dell.to/2PIAVgR
    504637 : Dell EMC Unity:  Rescue reason for code 0x1b01 - "ERROR" "1:1678040"  There is a problem with the system software on this Storage Processor. (Dell EMC Correctable) https://dell.to/2RehPjd
    499335 : Unity: SP enters rescue mode after failed NDU (Dell EMC Correctable) https://dell.to/3fMa661
    487370 : After replacing the SP on a Unity system with D@RE encryption enabled, it may boot into Rescue Mode Code 0x1200 https://dell.to/2Q1c7R4
    489057 : Dell EMC Unity: SPs may go into Service Mode due to log bloating (/nbsnas partition becomes 100% full). (Dell EMC Correctable) https://dell.to/2Rd2OhF
    499580 : Unity: Storage Processor boots into service mode due to DIMM error (Dell EMC Correctable) https://dell.to/39JEXwb
    489814 : Unity : How can I clear paused and degraded storage processor ? https://dell.to/3dB6UaY
    482324 : System Calls Home with Critical 'Unexpected error put SP into rescue mode' error 14:6046c/0x80b0 https://dell.to/2PwgVyb
    516016 : DELL EMC Unity: SP rebooted in service mode due to error code 0x1400 (Dell EMC Correctable) https://dell.to/3mpNtpB

    Please bear in mind that this is not necessarily a comprehensive list and we cannot guaruntee that all KBs regarding an SP booting into service mode will always be added to the list. You are encouraged to edit the article if you find or create a relevant KB and add it to the list.