Practical 6

Name: Arun Thakur

Reg No 11003400

Roll NO B22

Summary: In this practical we come to know that how to expand the LUNs and the two

ways of expansion i.e. Striping technique and Concatenation technique.

MetaLUN:

MetaLUN is a method to expand LUNs that require additional capacity or performance. A

metaLUN can be created by combining two or more LUNs. A metaLUN consists of a base

LUN and one or more component LUNs. MetaLUNs can be either concatenated or striped.

Concatenated MetaLUNs:

Concatenated expansion simply adds additional capacity to the base LUN. In this expansion,

the component LUNs are not required to be of the same capacity as the base LUN.

Striped MetLUNs:

Striped expansion restripes the base LUN’s data across the base LUN and component LUNs.

In striped expansion, all LUNs must be of the same capacity and RAID level. Striped

expansion provides improved performance due to the increased number of drives being

striped.

Expansion of LUNs through Striped MetaLUNs method:

1) First of all create a RAID group and after creating the RAID group add logical units to

it . Now we can see that RAID group is created and having the following LUNs in it.

2) After that add one of the LUN to the particular storage group as done in the above

picture by right clicking on that particular LUN.

3) After that you are displayed with the following wizard to add the LUN in the storage

group.

4) After this click on OK and your LUN is added to the particular storage group. After

this now we have to configure MetaLUNs.

5) Click on the Expand tab on the left side of the navisphere window, it will show you

with the wizard which tells about the various steps you have to follow for MetaLUNs

as follow:

6) After this click on Next and select the server which has LUN to be expanded as

follow:

7) Click on Next and you are shown with the Storage system wizard where you have to

select the Storage System in which your LUN is situated as follow:

8) After this click on next and select the LUN which you want to expand.

9) After this click on next button and you are shown with a wizard which will show the

difference b/w stripe and concatenated MetaLUNs and you have to select the type

of MetaLUN you want as follow:

10) Now click on the next and the next wizard show you the instructions for specifying

the size of the MetaLUNs.

11) Now click on the Next and you are shown with the window for specifying the

MetaLUNs setting as follow:

12) After this click on next and you are shown with the summary window.

13) After this click on Finish and you MetaLUN is done.

Now to check the MetaLUN expand the LUN folder and you see the expansion of

LUN here as follows:

Configuring LUN expansion using concatenated MetaLUNs method:

1) Follow all the steps as given above from 5-8 and now select the Concatenated

method in the “Select Expansion type” Wizard as follow:

2) After this again follow the steps from 10-13.

3) Now expand the LUN folder to see the concatenated expansion of LUN as follow:

It contains two things i.e. Component 0 Folder which on expansion contains the

LUN which we want to expand and Component 1 which on expansion contain the

LUN which we have added to the base LUN.