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PowerStore: After an Upgrade of PowerStore to 2.0.x.x or 2.1.x.x, Volumes are Inaccessible to Direct Attached FC Hosts

Summary: After an upgrade of PowerStore to 2.0.x.x or 2.1.x.x, direct attached hosts which have NVMe capable drivers may lose access to all volumes.

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Symptoms

A host may lose access to volumes after PowerStore upgrade to the affected version.

Alternatively, if PowerStore was previously upgraded to the affected version without any issues, updating the host drivers to a version supporting NVMe exposes this issue.

Cause

After the hosts are updated to support NVMe, a second process login (PRLI) can occur from the host following each link up event. This second PRLI is for NVMe transport, and the PowerStore does not handle this second PRLI optimally.

Resolution

This issue is addressed in PowerStoreOS v3.

Workaround:
Disable NVMe support in the driver.
  • For ESXi hosts, see VMware article 84325 This hyperlink is taking you to a website outside of Dell Technologies.. Summary of VMware article is below: 
ESXi using QLogic or Marvel HBA and qlnativefc driver: 
esxcfg-module -s 'ql2xnvmesupport=0' qlnativefc
 
ESXi using Emulex HBA and lpfc driver: 
esxcli system module parameters set -m lpfc -p lpfc_enable_fc4_type=1
  • For Red Hat hosts, see Red Hat article 3522911 This hyperlink is taking you to a website outside of Dell Technologies.. Summary of Red Hat article is below: 
Linux hosts using QLogic or Marvel HBA and qlnativefc driver, add or edit the line below: 
vi /etc/modprobe.d/qla2xxx.conf
ql2xnvmeenable=0
 
Linux hosts using Emulex HBA and lpfc driver, edit the following file and add or edit the line below: 
vi /etc/modprobe.d/lpfc.conf
 lpfc lpfc_enable_fc4_type=1
 
NOTE: The hosts must be rebooted after changing the HBA driver configuration.

Affected Products

PowerStore 1000X, PowerStore 1000T, PowerStore 3000X, PowerStore 3000T, PowerStore 5000X, PowerStore 5000T, PowerStore 500T, PowerStore 7000X, PowerStore 7000T, PowerStore 9000X, PowerStore 9000T