HP StoreOnce Backup System Concepts and Configuration Guidelines (BB877-90913, November 2013)

1 Before you start
Overview
The HP StoreOnce Backup System is a disk-based storage appliance for backing up host network
servers or PCs to target devices on the appliance. These devices are configured as Network-Attached
Storage (NAS), StoreOnce Catalyst or Virtual Tape Library (VTL) targets for backup applications.
The total number of backup target devices provided by an HP StoreOnce Backup System varies
according to model. These devices may be all Storeonce Catalyst, all VTL, all NAS or any
combination of Catalyst, NAS and VTL devices. All HP StoreOnce devices automatically make use
of StoreOnce deduplication, ensuring efficient and cost-effective use of disk space. A further benefit
of StoreOnce Catalyst devices is that deduplication may be configured to occur on the Media
Server (low bandwidth) or on the StoreOnce Backup system (high bandwidth), allowing the user
to decide which makes most efficient use of available bandwidth.
HP StoreOnce Backup system models
The information in this guide relates to all G3 HP StoreOnce Backup system models. (G3 means
that the systems are running StoreOnce software version 3.x.x.)
These products are also sometimes referred to as multi-node or single-node Backup systems, which
relates to the hardware configuration.
• The HP StoreOnce B6200 Backup system is the multi-node model and is composed of 1 to 4
couplets (the number depends on the customer-specific configuration). A couplet is a paired
combination of two nodes (or servers) that are directly connected in failover pairs. Within a
couplet each node has access to and can assume the role of both nodes in the event of node
failure. A couplet provides a minimum of storage and this can be expanded in increments by
adding pairs of 12–disk storage shelves up to a maximum of three pairs per couplet.
• All other HP StoreOnce Backup systems are single-node models and are composed of a single
server. Some models support expansion using 12–disk storage shelves.
Table 1 StoreOnce B6200 models
Storage expansionPortsDescriptionProduct model
Up to six 12–disk storage
shelves per couplet (three
per node)
8 x 1GbE ports
nl
4 x 10GbE ports
nl
8 x FC ports
Rack system with up to four
couplets. Each couplet
contains two nodes (servers)
and two 12–disk RAID
storage controllers
HP StoreOnce B6200
Backup, EJ022A
Table 2 StoreOnce 2700/ 4500, 4700
Storage expansionPortsInterfaces supportedDescriptionProduct model
Not supported4 x 1GbE portsiSCSI onlyA single server with
four 2TB hot-plug disks
HP StoreOnce 2700
8TB Backup , BB877A
One 12–disk
expansion shelf,
BB881A
4 x 1GbE ports
nl
2 x 10GbE ports
nl
2 x FC ports
iSCSI and FCA single server with
twelve 2TB hot-plug
disks
HP StoreOnce 4500
24TB Backup,
BB878A
Overview 7