15.5 Modifying the Scripts for CSM Resources with a Segment Manager

Before you add OES 11x nodes to an OES 2 SP3 cluster, you must take all of the CSM-based resources offline on the OES 2 SP3 nodes in the cluster. Modify their scripts to run on OES 11x nodes by adding csmport commands to activate, deactivate, or check the status of the CSM container. After you modify the scripts, the resources cannot be used on OES 2 SP3 nodes. They can be mounted successfully only on OES 11x nodes in the cluster.

If the CSM container has a segment manager on it, you must first convert the volumes in the container to compatibility volumes and deport them before you offline them and modify their scripts for OES 11 and later. See Section 15.3, Deporting the CSM Containers with Segment Managers.

IMPORTANT:If the CSM container does not have a segment manager on it, follow the instructions in Section 15.4, Modifying the Scripts for CSM Resources without a Segment Manager.

If the CSM container has a segment manager on it, the container can have one or more volumes in it. The volume device name for each volume is based on its order in the container and whether the device is multipathed. The partitions for the volumes in the container are named by adding a sequential number to the end of the container name. For example:

  • /dev/mapper/<container_name>1
  • /dev/mapper/<container_name>2

and so on.

If the container name ends with a number, the partitions are named by adding a p before the sequential number. For example:

  • /dev/mapper/<container_name>p1
  • /dev/mapper/<container_name>p2

and so on.

In addition to adding the csmport commands to the scripts, you must modify the definition fields in the scripts to have one entry for each of the volumes.

The sample scripts in this section use the following sample parameters. It assumes that the CSM container has a DOS segment manager on it and two Linux POSIX volumes with different file systems. Ensure that you replace the sample values with your values.

Parameter

Sample Value

volume name for Linux POSIX volume 1

lxvolext3

volume name Linux POSIX volume 2

lxvolxfs

RESOURCE_IP

10.10.10.44

MOUNT_FS1

ext3

MOUNT_FS2

xfs

CONTAINER_NAME

csm4

VOLUME_DEV1

csm44p1

VOLUME_DEV2

csm44p2

MOUNT_DEV1

/dev/mapper/$VOLUME_DEV1

MOUNT_DEV2

/dev/mapper/$VOLUME_DEV2

MOUNT_POINT1

/mnt/lxvol44ext3

MOUNT_POINT2

/mnt/lxvol44xfs

IMPORTANT:Perform the following tasks to prepare the CSM resources for an OES 11x node in a mixed-mode cluster. Do not add the OES 11x nodes at this time.

15.5.1 Offlining the CSM Cluster Resources with a Segment Manager

Offline every OES 2 SP3 cluster resource that manages a Linux POSIX file system on CSM containers with segment managers:

  1. In iManager, select Clusters > My Clusters, select the cluster, then click Cluster Manager.

  2. Select the check box next to each of the CSM-based cluster resources that you want to manage, then click Offline.

    Wait until the resources report an Offline status.

  3. Continue with Section 15.5.2, Configuring the Scripts for a CSM Cluster Resource with a Segment Manager.

15.5.2 Configuring the Scripts for a CSM Cluster Resource with a Segment Manager

  1. In iManager, select Clusters > My Clusters.

  2. Select the cluster you want to manage.

  3. Select Cluster Options.

  4. Select the check box next to the CSM resource, then click the Details link.

    You can also click the CSM resource’s name link to view its properties.

  5. Click the Scripts tab to view the Load Script page.

  6. On the Load Script page, modify the script to handle the CSM container and multiple volumes on it.

    For an example, see Section 15.5.3, Sample Load Script for a CSM Resource with a Segment Manager.

    1. Add file system definition entries for each file system used by the volumes.

      For example, if you have two volumes and each of them has a different type of file system, you create a definition for each:

      #define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

    2. Add a device definition for each volume:

      #define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

    3. Add a mount device definition for each volume:

      #define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

    4. Add a mount point definition for each volume:

      #define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

    5. Add a csmport command to activate the CSM container:

      #activate the container
exit_on_error csmport -i $CONTAINER_NAME

    6. Add a kpartx command to activate the partitions. The command should follow the csmport command in the load script.

      #activate the partitions
exit_on_error /sbin/kpartx -a /dev/mapper/$CONTAINER_NAME

    7. If you use a mkdir command, create one for each mount point:

      #if the mount path does not exist, create it
ignore_error mkdir -p $MOUNT_POINT1
ignore_error mkdir -p $MOUNT_POINT2

    8. Add a mount command for each volume:

      #mount the file systems
exit_on_error mount_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error mount_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

    9. Click Apply to save the load script changes.

  7. Click the Unload Script link to go to the Unload Script page, then modify the script to handle the CSM container and multiple volumes on it.

    For an example, see Section 15.5.4, Sample Unload Script for a CSM Resource with a Segment Manager.

    1. Modify the definitions as described in Step 6.a through Step 6.d in the load script changes.

      #define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

#define the container name
CONTAINER_NAME=csm44

#define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

#define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

#define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

    2. Add an unmount command for each volume:

      #unmount the volumes
exit_on_error umount_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error umount_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

    3. Add a kpartx command to deactivate the partitions. The command should come before the csmport command in the unload script.

      #deactivate the partitions
exit_on_error /sbin/kpartx -d /dev/mapper/$CONTAINER_NAME

    4. Add a csmport command to deactivate the CSM container:

      #deactivate the container
exit_on_error csmport -e $CONTAINER_NAME

    5. Click Apply to save the unload script changes.

  8. Click the Monitor Script link to go to the Monitor Script page, then modify the script to handle the CSM container and multiple volumes on it.

    For an example, see Section 15.5.5, Sample Monitor Script for a CSM Resource with a Segment Manager on It.

    1. Modify the definitions as described in Step 6.a through Step 6.d in the load script changes.

      #define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

#define the container name
CONTAINER_NAME=csm44

#define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

#define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

#define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

    2. Add a check for each volume:

      #check the volumes
exit_on_error status_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error status_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

    3. Add a csmport command to check the status of the CSM container:

      #check the container
exit_on_error csmport -c $CONTAINER_NAME

    4. Click Apply to save the monitor script changes.

  9. Repeat Step 5 to Step 8 for each of the resources that you took offline in Section 15.4.1, Offlining the CSM Cluster Resources without Segment Managers.

    Do not bring the CSM cluster resources online again until OES 11x nodes have joined the cluster, and each resource’s Preferred Nodes list has been modified to use only OES 11x nodes.

  10. Continue with Section 15.6, Configuring and Adding OES 11x Nodes to the OES 2 SP3 Cluster.

15.5.3 Sample Load Script for a CSM Resource with a Segment Manager

Use the following sample load script to complete the fields for your CSM cluster resource on OES 11x:

#!/bin/bash
. /opt/novell/ncs/lib/ncsfuncs

#define the IP address
RESOURCE_IP=10.10.10.44

#define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

#define the container name
CONTAINER_NAME=csm44

#define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

#define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

#define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

#if the mount path does not exist, create it
ignore_error mkdir -p $MOUNT_POINT1
ignore_error mkdir -p $MOUNT_POINT2

#activate the container
exit_on_error csmport -i $CONTAINER_NAME

#activate the partitions
exit_on_error /sbin/kpartx -a /dev/mapper/$CONTAINER_NAME

#mount the file systems
exit_on_error mount_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error mount_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

# add the IP address
exit_on_error add_secondary_ipaddress $RESOURCE_IP

exit 0

15.5.4 Sample Unload Script for a CSM Resource with a Segment Manager

Use the following sample unload script to complete the fields for your CSM cluster resource on OES 11x:

#!/bin/bash
. /opt/novell/ncs/lib/ncsfuncs

# define the IP address
RESOURCE_IP=10.10.10.44

# define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

#define the container name
CONTAINER_NAME=csm44

#define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

#define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

#define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

#del the IP address
ignore_error del_secondary_ipaddress $RESOURCE_IP

#unmount the volumes
exit_on_error umount_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error umount_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

#deactivate the partitions
exit_on_error /sbin/kpartx -d /dev/mapper/$CONTAINER_NAME


#deactivate the container
exit_on_error csmport -e $CONTAINER_NAME

# return status
exit 0

15.5.5 Sample Monitor Script for a CSM Resource with a Segment Manager on It

Use the following sample monitor script to complete the fields for your CSM cluster resource on OES 11x. To use the script, you must also enable monitoring for the resource. See Section 11.7, Enabling Monitoring and Configuring the Monitor Script.

#!/bin/bash
. /opt/novell/ncs/lib/ncsfuncs

# define the IP address
RESOURCE_IP=10.10.10.44

# define the file system types
MOUNT_FS1=ext3
MOUNT_FS2=xfs

#define the container name
CONTAINER_NAME=csm44

#define the volume devices
VOLUME_DEV1=csm44p1
VOLUME_DEV2=csm44p2

#define the devices
MOUNT_DEV1=/dev/mapper/$VOLUME_DEV1
MOUNT_DEV2=/dev/mapper/$VOLUME_DEV2

#define the mount points
MOUNT_POINT1=/mnt/lxvolext3
MOUNT_POINT2=/mnt/lxvolxfs

#check the IP address
exit_on_error status_secondary_ipaddress $RESOURCE_IP

#check the volumes
exit_on_error status_fs $MOUNT_DEV1 $MOUNT_POINT1 $MOUNT_FS1
exit_on_error status_fs $MOUNT_DEV2 $MOUNT_POINT2 $MOUNT_FS2

#check the container
exit_on_error csmport -c $CONTAINER_NAME

# return status
exit 0