Sun Storage 7000 Unified Storage System: How To Rescan New iSCSI Luns presented from ZFS NAS array to Oracle Linux Clients Without Restarting iSCSI Service

Asset ID:	1-71-1509189.1
Update Date:	2013-02-07
Keywords:

Solution Type Technical Instruction Sure

Solution 1509189.1 : Sun Storage 7000 Unified Storage System: How To Rescan New iSCSI Luns presented from ZFS NAS array to Oracle Linux Clients Without Restarting iSCSI Service

Applies to:

Sun ZFS Storage 7120 - Version All Versions to All Versions [Release All Releases]
Sun ZFS Storage 7420 - Version All Versions to All Versions [Release All Releases]
Sun ZFS Storage 7320 - Version All Versions to All Versions [Release All Releases]
Sun Storage 7410 Unified Storage System - Version All Versions to All Versions [Release All Releases]
Sun Storage 7310 Unified Storage System - Version All Versions to All Versions [Release All Releases]
7000 Appliance OS (Fishworks)

Goal

How To Rescan New iSCSI Luns Coming From ZFS NAS array on Oracle Linux Clients Without Restarting the NAS iSCSI Service

Oracle Linux 5.7 clients

This issue is not a problem with the ZFS NAS Appliance. Customers having issues with attached Oracle Linux 5.7 clients.

Customers are able to create new iSCSI luns successfully on the NAS array.

Current workround at present is to restart the iSCSI service on the Appliance and this successfully rescans the attached clients and presents the new LUNs to the Client.

Fix

How to rescan new iscsi luns:

After assigning the LUN from the NAS storage to the Linux client/host , on command line of the client server please run the following command:

echo “- – - ” > /sys/class/scsi_host/*host_number*/scan

You can find out host number under ;

/sys/class/iscsi_host

References

<NOTE:1374509.1> - Sun Storage 7000 Unified Storage System: Known iSCSI performance limitations
<NOTE:1175573.1> - Sun Storage 7000 Unified Storage System: Configuration and tuning for iSCSI performance

Attachments

This solution has no attachment