Storage Provisioning - Iomega STORCENTER px12-350r White Paper

IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE
LUN: Logical Unit Number. Identifying number of a SCSI or iSCSI object that processes SCSI commands. The LUN
is the last part of the SCSI address for a SCSI object. The LUN is an ID for the logical unit, but the term is often
used to refer to the logical unit itself.
Storage Pool: a unit of provisioning. A Storage Pool contains a set of disk drives using a common data protection type.
Folder: on an Iomega px12-350r, a folder is a file system directory that can be accessed by hosts using file sharing
protocols, including NFS and CIFS. A folder resides in a single Storage Pool.
iSCSI Drive: on an Iomega px12-350r, an iSCSI drive is an iSCSI LUN that resides in a single Storage Pool.
SATA: Serial Advanced Technology Attachment. This is a storage interface for connecting host bus adapters to
mass storage devices, such as hard disk drives and optical drives.

STORAGE PROVISIONING

An Iomega px12-350r network storage array contains a maximum of twelve drives which can be grouped into one
or more Storage Pools. At least one Storage Pool must exist before any folders or iSCSI drives can be created.
A Storage Pool can be configured in the JBOD mode without any data protection, or be configured in one of the
supported RAID protection types. The RAID types available on an Iomega px12-350r are RAID 0, RAID 1, RAID
10, RAID 5, and RAID 6.
The Iomega px12-350r provides a graphical representation of the device enclosure, the drives, and their layout in
the enclosure. This graphical representation makes complex storage provisioning jobs much more intuitive and
easier to understand. When mousing over either a Storage Pool listed in the pool table or one of the drives
belonging to a pool, all drives in the same Storage Pool are highlighted in the graphical representation to clearly
illustrate how the Storage Pool is constructed. Faulted disks or Storage Pools are displayed with an alert icon or
with an error icon. When a Storage Pool is degraded or faulted, the Storage Pool is grayed out to prevent
modification.
In this white paper, an Iomega px12-350r device with twelve 1TB drives is used for illustration purpose.
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White Paper