When you remove a file system from an HAStoragePlus resource, the HAStoragePlus resource treats a local file system differently from a global file system.
The HAStoragePlus resource always automatically unmounts a local file system.
The HAStoragePlus resource automatically unmounts a global file system only if the AffinityOn extension property of the HAStoragePlus resource is True.
For information about the AffinityOn extension property, see Synchronizing the Startups Between Resource Groups and Disk Device Groups.
Before removing a file system from an online HAStoragePlus resource, ensure that no applications are using the file system. When you remove a file system from an online HAStoragePlus resource, the file system might be forcibly unmounted. If a file system that an application is using is forcibly unmounted, the application might fail or hang.
On one node of the cluster, become superuser.
Retrieve the list of mount points for the file systems that the HAStoragePlus resource already manages.
# scha_resource_get -O extension -R hasp-resource -G hasp-rg \ FileSystemMountPoints |
Specifies the HAStoragePlus resource from which you are removing file systems
Specifies the resource group that contains the HAStoragePlus resource
Modify the FileSystemMountPoints extension property of the HAStoragePlus resource to contain only the mount points of the file systems that are to remain in the HAStoragePlus resource.
# scrgadm -c -j hasp-resource -x FileSystemMountPoints="mount-point-list" |
Specifies the HAStoragePlus resource from which you are removing file systems.
Specifies a comma-separated list of mount points of the file systems that are to remain in the HAStoragePlus resource. This list must not include the mount points of the file systems that you are removing.
Confirm that you have a match between the mount point list of the HAStoragePlus resource and the list that you specified in Step 3.
# scha_resource_get -O extension -R hasp-resource -G hasp-rg \ FileSystemMountPoints |
Specifies the HAStoragePlus resource from which you are removing file systems
Specifies the resource group that contains the HAStoragePlus resource
Confirm that the HAStoragePlus resource is online and not faulted.
If the HAStoragePlus resource is online and faulted, validation of the resource succeeded, but an attempt by HAStoragePlus to unmount a file system failed.
# scstat -g |
(Optional) From the /etc/vfstab file on each node of the cluster, remove the entry for the mount point of each file system that you are removing.
This example shows how to remove a file system from an online HAStoragePlus resource.
The HAStoragePlus resource is named rshasp and is contained in the resource group rghasp.
The HAStoragePlus resource named rshasp already manages the file systems whose mount points are as follows:
/global/global-fs/fs1
/global/global-fs/fs2
The mount point of the file system that is to be removed is /global/global-fs/fs2.
# scha_resource_get -O extension -R rshasp -G rghasp FileSystemMountPoints STRINGARRAY /global/global-fs/fs1 /global/global-fs/fs2 # scrgadm -c -j rshasp -x FileSystemMountPoints="/global/global-fs/fs1" # scha_resource_get -O extension -R rshasp -G rghasp FileSystemMountPoints STRINGARRAY /global/global-fs/fs1 # scstat -g -- Resource Groups and Resources -- Group Name Resources ---------- --------- Resources: rghasp rshasp -- Resource Groups -- Group Name Node Name State ---------- --------- ----- Group: rghasp node46 Offline Group: rghasp node47 Online -- Resources -- Resource Name Node Name State Status Message ------------- --------- ----- -------------- Resource: rshasp node46 Offline Offline Resource: rshasp node47 Online Online |