Reference Guide

180 Lifecycle Controller Web Services Interface Guide for Linux
16.21.12 Online capacity expansion -OnlineCapacityExpansion()
This method allows to increase the storage capacity of selected RAID levels while the System remains
online.
The operation can perform in two ways:
1. Increase the virtual disk capacity up to maximum if there is free space in physical disks.
2. Increase the virtual disk capacity by adding new physical disks.
This configuration supported by both staged and real time. Upon success of the method, properties
"OperationalName" and "OperationPercentComplete" shows as " Reconstruction" and "percentage in
progress like 0% to 100%" in DCIM_VirtualDiskView class.
Notes:
 OCE feature shall not be available when the Disk Group has more than one VD.
 OCE is not possible if sliced VD is available in disk group.
 If some operation like BGI, copyback, rebuild, ccheck, patrolread etc is already running on a VD
then it will not be available for OCE.
 No OCE is supported on spanned VDs – thus no OCE is possible on RAID10, RAID50 and
RAID60 VDs. But OCE is supported on single span RAID10 VDs.
If the disk group has reached its maximum span length limit then no OCE is possible by adding new
drives to the disk group.
Invoke OnlineCapacityExpansion() method with the following input parameters:
TARGET: FQDD of the controller.
SIZE: New VD size in MB. This parameter is not required if new drive added for OCE
Note: Minimum size is greater than 100MB.
EXAMPLE: If user wants to increase the VD capacity from 1GB to 2GB then user has to pass 2GB in
the parameter “Size”.
PDArray: FQDD of new physical disks.
Note: User required to pass either input parameter “Size” or “New physical disk” but not both. Hence both
are required parameters at the same time both are optional parameters when one input parameter has
provided.
EXAMPLE:
wsman invoke -a OnlineCapacityExpansion
"http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/root/dcim/DCIM_RAIDService?
SystemCreationClassName=DCIM_ComputerSystem,CreationClassName=DCIM_RAIDService
,SystemName=DCIM:ComputerSystem,Name=DCIM:RAIDService"
-h $IPADDRESS-V -v -c dummy.cert -P 443
-u $USERNAME -p $PASSWORD
-k Target="Disk.Virtual.0:RAID.Integrated.1-1"
–k PDArray="Disk.Bay.1:Enclosure.Internal.0-1:RAID.Integrated.1-1"
-j utf-8 -y basic
16.21.13 RAID level migration -RAIDLevelMigration()
This method is used to change the VD raid level.RAID level migration is the process of converting a VD
with one RAID Level to another.The controller changes the write cache policy of all virtual disks
undergoing a RLM to Write-Through until the RLM is complete.
This configuration is supported by both staged and realtime. Upon success of the method, properties
"OperationalName" and "OperationPercentComplete" shows as " Reconstruction" and "percentage in
progress like 0% to 100%" in DCIM_VirtualDiskView class.
The operation can perform in two ways: