IBM Support

QRadar Offboard Storage: ISCSI Qualified Name (IQN) may change after a QRadar upgrade or reinstall

Troubleshooting


Problem

The iSCSI Qualified Name (IQN) from the target and host are unique. If you patch or upgrade a system were the OS revision is updated or reinstall an appliance, then the IQN could change which requires the connection to be re-established at the storage side.

Symptom

After an administrator upgrades QRadar system where the patch contains with an operating system upgrade or the administrator completes a reinstall the offboard storage is not available or attached. When you try to mount the storage, an error is generated because a valid device cannot be found. An investigation using dmesg (display message) returns the error "test WP failed, assume Write Enabled".
If you test these using a tool as fsck you will get a bad superblock message.

Despite all efforts you cannot mount the device, which is due to an IQN mismatch.

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"ARM Category":[{"code":"a8m0z000000blYOAAY","label":"QRadar-\u003EConfiguration-\u003EOffboard Storage"}],"ARM Case Number":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"All Versions","Edition":"All Editions","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
02 April 2020

UID

swg21691913