Dell XC: 16G - Add node or cluster create operation failure
Summary: Cluster creation or expansion of an existing cluster fails if the minimum software versions are not met.
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Symptoms
Scenario 1:
The existing cluster is running AHV 6.5.2.7, and the host being added is a wave1, such as XC760-24.
Before the node expansion, when the system is checked, we can see all the drives are available in CVM with AOS version 6.7.1.
nutanix@NTNX-XXXXXXX-A-CVM:~$ list_disks Slot Disk Model Serial Size 0 /dev/sdm MZ7LH3T8HMLT0D3 3.84 TB 1 /dev/sdn MZ7LH3T8HALT0D3 3.84 TB 2 /dev/sdo MZ7LH3T8HALT0D3 3.84 TB 3 /dev/sdp MZ7LH3T8HALT0D3 3.84 TB 4 /dev/sdq MZ7LH3T8HALT0D3 3.84 TB 5 /dev/sdr MZ7LH3T8HMLT0D3 3.84 TB 6 /dev/sds MZ7LH3T8HALT0D3 3.84 TB 7 /dev/sdt MZ7LH3T8HALT0D3 3.84 TB 8 /dev/sdu MZ7LH3T8HALT0D3 3.84 TB 9 /dev/sdv MZ7LH3T8HMLT0D3 3.84 TB 10 /dev/sdw SSDSC2KB038T8R 3.84 TB 11 /dev/sdx SSDSC2KB038T8R 3.84 TB 12 /dev/sda SSDSC2KB038T8R 3.84 TB 13 /dev/sdb MZ7LH3T8HALT0D3 3.84 TB 14 /dev/sdc MZ7LH3T8HMLT0D3 3.84 TB 15 /dev/sdd MZ7LH3T8HALT0D3 3.84 TB 16 /dev/sde SSDSC2KB038T7R 3.84 TB 17 /dev/sdf MZ7LH3T8HMLT0D3 3.84 TB 18 /dev/sdg SSDSC2KB038T8R 3.84 TB 19 /dev/sdh MZ7LH3T8HMLT0D3 3.84 TB 20 /dev/sdi MZ7LH3T8HALT0D3 3.84 TB 21 /dev/sdj SSDSC2KB038T7R 3.84 TB 22 /dev/sdk SSDSC2KB038T7R 3.84 TB 23 /dev/sdl SSDSC2KB038T7R 3.84 TB nutanix@NTNX-XXXXXXX-A-CVM:~$ stargate --version Stargate version el7.3-release-fraser-6.7.1-stable-104e6662e8b936a9225379d2d68efd93b5448289 Last-commit-date 2023-11-28 06:40:04 +0000 nutanix@NTNX-XXXXXXX-A-CVM:~$
When an add-node operation is performed, the hypervisor is laid down, but the CVM is not created.
Scenario 2:
The existing cluster has AOS 6.5.x, but the add-node operation fails. When we look at the console, we can see that the MDRAID has not been configured correctly, so the CVM first boot has not been completed. 
Cause
Scenario 1:
As the cluster is running a version older than the minimum qualified which was AOS 6.5.3, the expand node failed.
Scenario 2:
The nodes with Kioxia (KPM6WRUG7T68) or SK Hynix (HFS1T9G32FEH-BA1) drives that do not initiate properly with the mptsas driver version less than v40.
As the cluster is running a version older than the minimum qualified which was AOS 6.5.3, the expand node failed.
Scenario 2:
The nodes with Kioxia (KPM6WRUG7T68) or SK Hynix (HFS1T9G32FEH-BA1) drives that do not initiate properly with the mptsas driver version less than v40.
Resolution
Scenario 1:
Update the cluster to a minimum of AOS 6.5.3 (recommended to always use the latest AOS).
Scenario 2:
Update to a minimum of AOS 6.7.1.
Update the cluster to a minimum of AOS 6.5.3 (recommended to always use the latest AOS).
Scenario 2:
Update to a minimum of AOS 6.7.1.
Affected Products
Dell XC Core XC660, Dell XC Core XC660xs, Dell XC Core XC760, Dell XC Core XC760xa, Dell XC Core XC7625Article Properties
Article Number: 000224926
Article Type: Solution
Last Modified: 21 Jan 2025
Version: 2
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