User manual NOVELL OPEN ENTERPRISE SERVER CLUSTER SERVICES 1.8.2 ADMINISTRATION

[. . . ] OES Novell Cluster Services 1. 8. 2 Administration Guide for Linux novdocx (ENU) 29 January 2007 Novell Open Enterprise Server www. novell. com N O V E L L C L U S T E R S E R V I C E S TM 1 . 2 April, 2007 ADMINISTRATION GUIDE FOR LINUX* novdocx (ENU) 29 January 2007 Legal Notices Novell, Inc. makes no representations or warranties with respect to the contents or use of this documentation, and specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose. reserves the right to revise this publication and to make changes to its content, at any time, without obligation to notify any person or entity of such revisions or changes. [. . . ] This affects both NSS and traditional Linux volume actions. NSS and traditional Linux volume cluster resources should not be migrated while any of the EVMS administration utilities are running. Ensuring That the Shared Disk Is not a Compatibility Volume New EVMS volumes are by default configured as compatibility volumes. If any of the volumes on your shared disk (that you plan to use in your cluster) are compatibility volumes, you must delete them. 1 At the Linux server console, enter evmsgui. 2 Click the Volumes tab, then right-click the volume on the shared disk and select Display details. 3 Click the Page 2 tab and determine from the Status field if the volume is a compatibility volume. If the volume is a compatibility volume or has another segment manager on it, continue with Step 3a below. 3a Click the Volumes tab, right-click the volume, then select Delete. 3b Select the volume, then click Recursive Delete. 3c (Conditional) If a Response Required pop-up appears, click the Write zeros button. 3d (Conditional) If another pop-up appears, click Continue to write 1024 bytes to the end of the volume. Removing Other Segment Managers If any of the shared disks you plan to use with your cluster have other segment managers, you must delete them as well. 1 In evmsgui, click the Disks tab, then right-click the disk you plan to use for a cluster resource. 2 Select remove segment manager from Object. This option only appears if there is another segment manager for the selected disk. 3 Select the listed segment manager and click Remove. Installation and Setup 33 novdocx (ENU) 29 January 2007 Creating a Cluster Segment Manager Container To use a traditional Linux volume with EVMS as a cluster resource, you must use the Cluster Segment Manager (CSM) plug-in for EVMS to create a CSM container. NOTE: CSM containers require Novell Cluster Services (NCS) to be running on all nodes that access the CSM container. Do not make to modifications to EVMS objects unless NCS is running. CSM containers can provide exclusive access to shared storage. 1 In evmsgui, click Actions, select Create, then select Container. 2 Select Cluster Segment Manager, then click Next. [. . . ] 2 Enter the Cluster object name, or browse and select it, then click OK. 3 Under Valued Attributes, click NCS:Shared Disk Flag, then click Edit. 4 Check the NCS:Shared Disk Flag check box, then click OK. 5 Click Apply to save changes, then reboot the cluster. 4. 6. 10 Mirroring SBD (Cluster) Partitions To achieve a greater level of fault tolerance, you can mirror SBD partitions. [. . . ]