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5 Storage Allocation

Allocating group storage space to users involves the following steps:

1. Create a Volume.

2. Connect a Computer to a Volume on page 28.

After allocating storage, you can customize the group and use its more advanced features. See Where to Go

After Setting Up a Group on page 31.

Create a Volume

To allocate group storage space to users and applications, use the Group Manager CLI or GUI to create

volumes. A volume appears on the network as an iSCSI target. When you create a volume, specify the

information described in Table 8.

Table 8 Volume Configuration Information

Optionally, you can set aside space for volume snapshots or configure a volume with thin provisioning.

However, thin provisioning is not appropriate for all storage environments. See the PS Series Group

Administration manual for information about advanced volume functionality.

Using the CLI to Create a Volume

1. Log in to the group.

Use one of these methods to connect to the group:

Component Description

Volume name This is a unique name, 63 or fewer characters (including letters, numbers,

periods, hyphens, and colons). The volume name is appended to the end of the

iSCSI target name, which is automatically generated for the volume. Access to a

volume is always through the target name.

Volume size This is the reported size of the volume as seen by iSCSI initiators. The minimum

volume size is 15 MB. Volume sizes are rounded up to the next multiple of 15

MB.

Access controls Allows computer access to a volume. A computer can access a volume only if it

matches the security credentials in a record:

• iSCSI initiator – Restricts access to the specified initiator name.

• IP address – Restricts access to iSCSI initiators with the specified initiator IP

address. Use asterisks for wildcards, if desired (for example, 12.16.*.*). An

asterisk can replace an entire octet, but it cannot replace a digit within an

octet.

At a later time, you can configure CHAP accounts in the group and use the

accounts in access control records to restrict access to volumes. See the Group

Administration manual for information.

Also specify read-write or read-only access for the volume.

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Dell PS4100 Installationsanleitung Seite 33