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One partial bad disk can cause the DCS deploy failed with wrong message (Doc ID 2452851.1)

Last updated on JUNE 25, 2020

Applies to:

Oracle Database Appliance X7-2 S/M Hardware - Version All Versions and later
Information in this document applies to any platform.
Error message is very misleading : DCS-10001:Internal Error Encountered: Fail To Discover Disk Groups

Symptoms

Fresh deploy failed with error: DCS-10001:Internal error encountered: Fail to discover disk groups
In the agent log we can find:

 

Number of NVME drive visible are : 4
2018-09-14 18:21:25,524 DEBUG [Discovering DiskGroup] []
c.o.d.c.u.CommonsUtils: Output :
Number of NVME drive visible should be either 2, 5 or 8

 

[ 4.912662] nvme nvme0: pci function 0000:19:00.0 <<<<<<<<<<< during boot,
it does see all 5 drives 0,1,2,3,4
[ 4.912742] nvme nvme1: pci function 0000:20:00.0
[ 4.912810] nvme nvme2: pci function 0000:8d:00.0
[ 4.912855] nvme nvme3: pci function 0000:94:00.0
[ 4.912898] nvme nvme4: pci function 0000:9b:00.0
[ 4.917341] usb 1-8: New USB device found, idVendor=2a4b, idProduct=0400
[ 4.917344] usb 1-8: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 4.917346] usb 1-8: Product: Emulex Pilot4 HighSpeed HUB
[ 4.917348] usb 1-8: Manufacturer: Emulex Communications
[ 4.917350] usb 1-8: SerialNumber: 0xxxxxxxxx
[ 4.918378] hub 1-8:1.0: USB hub found
[ 4.918561] hub 1-8:1.0: 7 ports detected
[ 5.113777] nvme nvme1: Shutdown timeout set to 10 seconds
[ 5.115444] nvme nvme0: Could not set queue count (16390)
<<<<<<<<<<<<<<<<<< then fails to fully initiate nvme0, can't set shutdown
timeout, so it can only use 4
[ 5.115448] nvme nvme0: IO queues not created
[ 5.115457] nvme nvme2: Shutdown timeout set to 10 seconds
[ 5.115460] nvme nvme4: Shutdown timeout set to 10 seconds
[ 5.115469] nvme nvme3: Shutdown timeout set to 10 seconds
[ 5.129903] nvme1n1: p1 p2
[ 5.130815] nvme4n1: p1 p2
[ 5.132829] nvme2n1: p1 p2
[ 5.133424] nvme3n1: p1 p2

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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