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Status Future consideration
Created by Guest
Created on Nov 29, 2019

mmhealth should complain about NSDs which have lost one path

Listing the NSDs shows that some of themhave only one path available. One of the two servers of a building block does not see the Volume:
[root@justnsd01a ~]# mmlsnsd -f cesSharedRoot -X

Disk name NSD volume ID Device Devtype Node name Remarks
---------------------------------------------------------------------------------------------------
justnsd01_cesSharedRoot_1 0A0A09795BF2CBB0 /dev/dm-29 dmm justnsd01bd4 server node
justnsd01_cesSharedRoot_1 0A0A09795BF2CBB0 - - justnsd01ad4 (not found) server node
justnsd01_cesSharedRoot_2 0A0A09795BF2CBB3 /dev/dm-198 dmm justnsd01bd4 server node
justnsd01_cesSharedRoot_2 0A0A09795BF2CBB3 - - justnsd01ad4 (not found) server node

The mmhealth command does not see this:
[root@justnsd01a ~]# mmhealth node show

Node name: justnsd01ad4
Node status: HEALTHY
Status Change: 59 min. ago

Component Status Status Change Reasons
-------------------------------------------------------------
GPFS HEALTHY 59 min. ago -
NETWORK HEALTHY 1 day ago -
FILESYSTEM HEALTHY 59 min. ago -
DISK HEALTHY 8 min. ago -

The reason was that after an upgrade the multipath configuration was not working properly.

Idea priority Medium
  • Guest
    Reply
    |
    Sep 30, 2020

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - Product functionality

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - V4 Product functionality