User guide

LSI Corporation
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Syncro CS 9286-8e Solution User Guide
March 2013
Chapter 3: Creating the Syncro CS 9286-8e Configuration
Creating Virtual Drives on the Controller Nodes
The following figure shows some sample configuration information that appears in response to the command.
Figure 19 Sample Configuration Information
The command generates many lines of information that scroll down in the command prompt window. You need
to use some of this information in the command line to create the shared VD.
6. Find the JBOD enclosure number Device ID for the system and also the Device IDs of available physical drives for
the VD you will create.
In the preceding figure, the enclosure device ID of 20 appears close to the top of the window. Use the scroll bar to
find the device IDs of the physical drives for the VD. The format of the drive IDs appears as follows:
Physical Disk: 1
Enclosure Device ID: 20
Slot Number: 2
Drive’ s position: DiskGroup: 0, Span; 0, Arm: 1
Enclosure position: 0
Device Id: 1
WWN: 5000C5001AA6F4DC
7. Create the shared VD using the enclosure and disk device IDs with the following command line syntax:
megacli64 –cfgldadd –r5[20:1,20:2,20:3,20:4,20:5] WB RA direct –strpsz64 –a0
The following notes explain the command line parameters.
— The –cfgldadd parameter configures and adds a VD (logical disk).
— The -r5 parameter selects RAID 5 as the RAID level.
— The opening and closing square brackets define the list of drives for the VD. Each drive is listed in the form
enclosure device ID: drive device ID.
— The WB parameter sets the controller to use the write cache. (Alternatively, the WT parameter sets the
controller cache for write through.)
— The RA parameter sets the controller cache for read ahead.
— The direct parameter sets direct I/O.
— The –strpsz64 parameter sets the stripe size to 64 KB.
— The -a0 parameter selects the first Syncro CS 9286-8e controller in the system.
— The HA-DAS version of MegaCLI creates, by default, a shared VD that is visible to all cluster nodes.