Dynamic Lun Expansion (DLE) to over 1TB and rebooting Master node leads to DiskGroup Disabled due to corruption in Log copy within the private region

Problem

After resizing a disk to over 1TB and rebooting the master node, the disk group (DG) on the new CVM Master was disabled due to corruption in the log copy within the private region.

Error Message

DiskGroup went to "dgdisabled" state after CVM Slave takeover as Master.

[root@arcpnucs4vm13 ~]# vxdisk list
DEVICE                  TYPE         DISK                  GROUP     STATUS

purestorage0_0001316f auto:cdsdisk   purestorage0_0001316f  testdg  online dgdisabled 

purestorage0_00013170 auto:cdsdisk   -            -                 online  

Cause

Resizing a disk beyond 1TB requires converting the disk format from VTOC to GPT and updating the private region offset accordingly. However, on the slave node, the private region offset was not updated correctly. Consequently, when the slave node took over as master, it flushed the kernel log to an incorrect offset, corrupting the log copy area in the private region and causing the DG to be disabled.

The issue is reported in AIX and Linux OS on Infoscale 7.4.2.

Solution

The Product Engineering team currently plans to address this issue through a patch or hotfix in the current and future software version. Please note that our company reserves the right to withdraw any fix from the targeted release if it fails quality assurance tests. Development plans are subject to change, and any actions you take based on this information, or your reliance on it, are at your own risk.

Please contact Technical Support to obtain the Hotfix for Infoscale 7.4.2

The InfoScale 8.0.2 U7 (8.0.2.3300) Cumulative patch now includes the Fix for this issue. 

RHEL 8 : https://www.veritas.com/content/support/en_US/downloads/update.UPD375070

RHEL 9 : https://www.veritas.com/content/support/en_US/downloads/update.UPD799692

SLES 15 : https://www.veritas.com/content/support/en_US/downloads/update.UPD627151