HP StoreOnce 4900 (44TB) and (60TB) Capacity Expansion guide

2 Installing the HP StoreOnce 4900 44TB Capacity
Expansion
One disk enclosure, containing 11 disks of pre-configured storage and 4 hot spare disks, is supplied
with the product and is connected at installation. See the HP StoreOnce 4900 Backup Installation
and Configuration Guide for details.
This chapter describes how to install additional HP StoreOnce 4900 44TB Capacity Expansion
kits, which contain eleven 4TB disks, into the disk enclosure. Unlike the pre-configured storage,
additional storage must be licensed, discovered and added to the StoreOnce Backup system before
it is available for use. Please note that there is a different license for the 44TB and the 60TB Capacity
Expansion. When adding expansion 1 through 5 for each enclosure, the 44TB license is required
to be added for each expansion. See Applying the License and Completing the RAID
Expansion (page 19).
NOTE: Once the first disk enclosure is completely full, further expansion is possible using the HP
StoreOnce 4900 60TB Capacity Expansion Kit. For instructions on installing this expansion kit,
go to Installing and cabling the HP StoreOnce 60TB Capacity Expansion kit (page 14).
Distributing the drives correctly
The initial eleven disks (plus four hot-plug disks) in the disk enclosure are installed and pre-configured
as follows when the HP StoreOnce 4900 Backup is installed.
Table 1 Disk bays populated at installation
Disk Enclosure 1
Drawer 2Drawer 1
Two spare hot disks in bays 34 and 35.Two spare hot disks in bays 34 and
35 and eleven disks in slots 23-33.
Initial storage configuration
The disks in HP StoreOnce 4900 44 TB Capacity Expansion kits must be added to specific bays
in the drawers within the disk enclosure depending upon the sequence in which they are being
added. Each drawer has a label that specifies the sequence in which each set of 11 disks must
be installed. This sequence is mandatory for the product to function because the StoreOnce software
expects the storage to be populated in this way.
Figure 5 Disk labeling for drawer 1
8 Installing the HP StoreOnce 4900 44TB Capacity Expansion