Configure MD3000i Virtual Disk on your computer
Posted by Brajesh Panda on December 31, 2009
Before I start writing about this post, will like to put a caveat over here i.e. you must have configured basic things for this storage device to get it accessed from Network. Some of the bullet points look like as follows;
– IP Address Configuration for Storage Management Controllers
– IP Address configuration for iSCSI Controllers
To accomplish this task we may be flipping between storage box & our server for some time. Bear me with that.
Open up Storage Client after installation. It will up to scan to find out new arrays in the network. Select “Automatic” click “OK”
– Let’s go ahead & configure a Disk Group & Virtual Disk (RAID Array & LUNs referred in other storage boxes)
– Go to “Configure” section & open up “Create Disk Group & Virtual Disks”
– Select “Disk Group” radio button & click next
– Give an identifiable Disk Group name. Which you can figure out easily later on
– Select “Manual Selection” for Physical Disks & click “Next”. Hence you can choose which physical drives should be included in the Disk Group.
– Now you select the RAID Type you like to assign to this group & which drives you like to include in this group.
– So you can select your preferred drive from Left section and click on “ADD” button
– Click on “Calculate Capacity” button. It will show you how much usage space you will get in this type of configuration.
– Click “Finish”. It will take a little while/more to build that Group depending on your size.
– Okay so you got your Disk Group or Array configured. Now you can create you slices out of that Group which will be called as Virtual Disk & you can assign to the servers you want
– In same page “Configure – Create Disk Groups & Virtual Disk” you can create Virtual Disks.
– Provide your required size of the Disk & assign a right understandable name for the same. I usually prefer for the server to which I am going to assign. If you are assigning multiple volumes you can do “ServerName-VDisk1-RAID5” etc.
– Even you can configure type of expected workloads hence file system pages/chunks will be sized accordingly.
– Okay here is the deal now; we have configured our required LUN/Virtual Disk on Storage Array. Now we have to assign the same to the server.
– But to do that we have to register our server in the storage array then we will able see the host inside the storage management tool & can proceed for assignment activity.
– I hope you have already configured iSCSI Controller Modules with IP Addresses & these address are reachable from server. Let me show you a screen shot of iSCSI Controller configuration
– To assign iSCSI storage LUN/Virtual Disk you need “MS iSCSI Initiator” tool. This tool usually provides drivers for storage connectivity over the existing Network Adapter. We may discuss about iSCSI communication in a different article. This tool also provide MPIO facility to iSCSI Arrays. However over here we are not using its inbuilt MPIO functionality. MD3000i Storage Client provides its own customized MPIO drivers & it get installed at the time of Storage Client Installation. Refer to my earlier post regarding the same.
– Now let’s login to our server. My Server is a Windows 20008 R2 Server. It comes with MS iSCSI Initiator installed. We can leverage the same for going forward.
– You will find this tool under Programs – Administrative Tool – iSCSI Initiator. Lets Open that J
– If you are using other than Windows 2008 server, please download & install MS iSCSI Initiator tool from Microsoft site as per your server version/editions. At the time of installation don’t select MPIO Driver check mark
– We will discuss about each & every options later on sometime; for now let’s concentrate on the job in hand.
– Lets register our server iSCSI IQN (lame man language kind of MAC address) with the storage box
– Go to “Discovery” tab click on “Discover Portal”, then add iSCSI Controller IP Addresses
– Hope you have not configured your storage box to listen on any other ports than the default 3260
– Click “Apply”
– Now go to 1st Tab on iSCSI Tool i.e. “Targets”. Wow I can my MD3000i’s IQN number over here; But it is seems to be “inactive”.
– Select the Discovered IQN & click on “Connect”. It will pop-up below screen for you
– Now you can select both of the “Check Boxes” & click okay.
– Now if you will go the 1st page i.e. Target, you will able to see Target IQN status has been changed to “Connected”.
– So now we can say our host has been logged on to storage box. That means it has been registered over there. Hence we can go ahead & assign required volumes to this server
– Okay let’s get into our storage client again & open up “Configure – Configure Host Access (Manual)” configuration page
– Type the host name for which you are going to create the Host Configuration i.e. I usually select my hostname for easy identification
– Select the host type, for me it is Windows Non Clustered. Click Next.
– Select the Host IQN Name, Click ADD & Next button. If you are dealing with multiple servers be careful at the time selection. Best way to do is deal with 1 server registration at a time.
– Select “NO” because we are not going to assign the VDisk to a Clustered Server. Depends what you are doing! & Click Next
– After you click next, it will create the Host Access configuration & you can click Finish to complete this task.
– Now if you will go to “Configure – Create Host to Virtual Disk Mapping” section. You will able to a see a screen like below;
There are two ways to assign the VDisk i.e. either create individual hosts like we did earlier steps or create multiple hosts & club them to a kind of Host Groups & then assign them. Either of the way you can go. But mostly I use Host Groups for cluster servers or a group of identical servers for easy management purpose. I know now you can create a Host Group by yourself J I am not going to cover that.
– Now I am going to assign a Virtual Disk to my earlier registered server. Hence select the Host Name & click Next
– Now select the available Virtual Disk for the Host & Click Finish
Let’s go to our server & verify what happened! Explorer the changes in iSCSI initiator, Lets jump to Disk Management of the server.
If you are not getting the new hard drive let’s do a RESCAN. You will able to see the Drive. Now Initialize & assign a Drive letter to the same. You are set to go