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After replacing MB in the Partial giveback status, the disk cannot be recognized with the "disk show -v" command

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340
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0
Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

  • ONTAP 9
  • AFF A300

Issue

  • A node (node01) causes PANIC below and is taken over by the partner node (node00).

Example of console log:

PANIC  : PCI Error NMI from device(s):RPT(0,3,0):QLogic FC/10GbE CNA on Controller. 
version: 9.1P11: Thu Dec 21 02:32:26 PST 2017
conf   : x86_64.optimize
cpuid = 9
KDB: stack backtrace:
panic() at panic+0x5f8
platform_ifname_hidden() at platform_ifname_hidden+0x612
psl_reconstruct_sysconfig_list() at 0xffffffff81404dfe
generic_nmi_handler() at generic_nmi_handler+0xb8
trap() at trap+0x38c
Xnmi() at Xnmi+0xcf
cpu_idle() at cpu_idle+0x55
sched_idletd() at sched_idletd+0x1d5
fork_exit() at fork_exit+0x181
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff83e4d49cf0, rbp = 0 ---
Uptime: 52s
coredump: primary dumper unavailable.
coredump: secondary dumper unavailable.
System halting...

  • Giveback doesn't work and node01 stops again.
  • After the failed giveback, the system appears as partial giveback status like the following.

Example of cluster shell:

Cluster::> storage failover show
 Takeover          
Node           Partner        Possible State Description  
-------------- -------------- -------- -------------------------------------
node00         node01- false    Waiting for node01,Partial giveback, Takeover is not
                                       possible: NVRAM log not synchronized
node01         node00- -        Dumping sparecore
2 entries were displayed.

  • After replacing MB of node01 in that state, "disk show -v" in maintenance mode doesn't show any disks.

Example:

*> disk show -v
Local System ID: 987654321

disk show: No disks attached to system.

  • ONTAP is unable to be started up with "boot_ontap" due to "No root volume found" and continues rebooting.

Example:

Storage Adapters found:
0 Fibre Channel Storage Adapters found!
4 SAS Adapters found!
0 Parallel SCSI Storage Adapters found!
0 ATA Adapters found!

add host 127.0.10.1***OS2SP configure e0S successfully***
: gateway 127.0.20.1

Select option 4 from the boot menu to choose disks for the root volume and spare core space.
Target Adapters found:
4 Fibre Channel Target Adapters found!
0 iSCSI Target Adapters found!

WARNING: there do not appear to be any disks attached to the system.
No root volume found.
Rebooting... (press ctrl-c during boot to break reboot loop)
Uptime: 1m54s
System rebooting...

 

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