MSA 2040/2050 Configuration

Storage configuration

Contents

Pool and disk group

In this part of the tutorial on MSA arrays, we will see how to configure storage.

A pool consists of one or more groups of disks. MSA arrays support two storage pools A and B.

A disk group is a physical disk set that has a type of: Virtual or Read Cache.

  • The virtual type groups physical disks in a RAID 1/5/6/10 array and must consist of disks of the same capacity and speed (SSD / 7.2 / 10/15).
  • The Read Cache type consists of one or more SSDs. This group has the role of increasing the speed of reading data.

Before you can create a drive cache type disk group, you must define a storage group.

The access to the creation of a storage pool and to the disk group is done by the menu on the left Pools 1, click on the button Action 2 then Add disk Group 3.

Ajout un pool

Disk group: storage

1. Select the type Virtual, choose the desired level of raid then check the disks to put in the group. Select pool A 1 and click on Add 2.

Création pool

A disk was not included in the group because it will be defined as a spare.

A disk group consists of disk of the same speed and capacity.

2. The disk group is visible in the pools page. We see that the pool A 1 was created, that this one contains the group of disk dgA01 2 and that it is composed of the disks 1.3 to 1.14 3.

Pool

Disk group: cache

1. Access the Add Group Group form.

2. Select the type Read Cache 1, check the SSD 2 to put in it. Check pool 3 and press Add 4.

Groupe de disques pour le cache

A read cache disk group consists of one or more solid state drives.

3. On the pools page you should see disk group 1 and its physical disk composition.

Pools: groupe de disque

Define a spare disk

1. Go to System 1 and click on Action 2 and Change Global Spare 3.

Accès au menu Spares

2. Check the disk (s) 1 to spare and click on Change 2.

Formulaire disques de spares

3. From the System page, by hovering over the disc, it is possible to see the use 1 provided for it.

Aperçu disque de spare

Summary of the configuration

You can access a summary of the configuration of disks and storage pools in two places:

1. From the System 1 > Table 2 part, we can see the state of each disk 3 with its allocation pool and its function.

Disque affectation

2. From the home page, you can see the two storage pools with the size of the affected disk groups.

Dashboard : stockage repartition

Volumes

A volume is a virtual disk created on a storage pool that is presented to a server as storage.

Add a volume

1. Go to the Volumes 1 section and click on Action 2 and Create Virtual Volumes 3.

Menu création de volume

2. Enter the volume capabilities and click OK 1.

Création de volumes

You can create multiple volumes at once by clicking Add Row.

3. Volume 1 is now visible in the list.

Listes volumes

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