Flashes (Alerts)
Abstract
When you utilize virtual Fibre channel adapters that are assigned to Linux logical partitions that run on SLES 15 SP4, or later, a temporary loss of paths can occur.
Content
Linux Releases Affected
SUSE Linux Enterprise Server (SLES) 15, Service Pack (SP) 4, or later
IBM Systems Affected
PowerVM-based POWER9 or Power10 system.
I/O Devices Affected
Virtual Fibre Channel adapters that are assigned to a Linux logical partition.
Symptoms
This issue can result in a loss of all paths to storage, leading to filesystems that are being remounted as read-only.
Workaround
You can disable ibmvfc.mq by completing the following steps:
- Create a file in /etc/modprobe.d/ by running the following command:
echo "options ibmvfc mq=0" > /etc/modprobe.d/98-ibmvfc.conf - Regenerate the initramfs by using dracut. Run the following command:
dracut -f - Restart the system by running the following command:
reboot
Fix Outlook
SUSE Linux Enterprise Server 15 SP4: kernel-default-base-5.14.21-150400.24.108.1
SUSE Linux Enterprise Server 15 SP5: kernel-default-base-5.14.21-150500.55.49.1
SUSE Linux Enterprise Server 15 SP6: kernel-default-base-6.4.0-150600.23.14.2
[{"Type":"MASTER","Line of Business":{"code":"LOB69","label":"Storage TPS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SGMV157","label":"IBM Support for Red Hat Enterprise Linux Server"},"ARM Category":[{"code":"a8m0z000000GnlCAAS","label":"SUSE Linux Enterprise Server"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]
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Document Information
Modified date:
03 September 2025
UID
ibm17003771