Dell PowerFlex 4.0.x Release Notes

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Operating system known issues and limitations

This section lists known issues and limitations for specific operating systems.


Issue number & SR number	Problem summary	Workaround
VXFV-360	The device name appears incorrectly as a non-PCI device instead of iDRAC, but the current and baseline versions are accurate (6.00.30.201 to 6.00.30.202, respectively).	Dell recommends upgrading the OME catalog to the latest version.
	PowerFlex nodes running CPLD 1.0.7 stop responding during Power On Self-Test (POST) when upgrading to certain RCM or IC packages that include BIOS 1.8.2 and iDRAC 6.00.30.202.	Before upgrading to the latest version of PowerFlex, ensure that the PowerFlex nodes are running CPLD 1.0.8 or later. For details, see https://www.dell.com/support/kbdoc/en-us/000205925.
VXFV-296	Mixing the Mellanox CX-6 100GbE NIC driver with the Broadcom PCIe/OCP 25GbE NIC driver is not supported.	Remove the bnxt_en driver and install the Mellanox driver.
VXFV-283	iDRAC support for "Prepare for Removal" on PowerEdge R650/R6525/R750/ nodes fails.	NVMe hot-swap on Linux operating systems is supported. Skip the Prepare for Removal step in iDRAC.
VXFV-265	During execution of the command create-namespace with 4k alignment on RHEL 8.4, the following error is encountered: Warning: namespace0.0 unable to validate alignment	This is a false notification. The command result is as expected, and the resulting DAX device can be used with PowerFlex acceleration devices.
VXFV-243	Upgrade of a RedHat-based operating system to RHEL 8.3 fails if the node contains NVDIMMs. This is due to a known issue on RHEL 8.3: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/8.3_release_notes/index#known-issue_installer-and-image-creation	Follow the procedures described in "RHEL/CentOS upgrade to version 8.3" in the .
VXFV-224	In a RHEL 8.x-based node using Cloudlink encrypted SDS devices, after reboot the device moves to failed state. NOTE:This issue is much rarer on RHEL7.x-based nodes, but it might occur.	SSH to the relevant SDS's operating system. Delete the SDS service. Clear the device errors using the GUI or CLI. Recreate the SDS service. Verify that devices come back online. Rebuild/Rebalance will occur if instant maintenance mode or protected maintenance mode was not used. If instant maintenance mode or protected maintenance mode was used, exit maintenance mode.
VXFV-157	NVMe disks are not supported on RHEL 8.0 due to the following issue: https://access.redhat.com/solutions/4280341 Failure to observe this limitation might cause RHEL-based SDSs with NVMes to experience kernel panic during a disk removal flow.	None