to make a record of which enclosure (serial number) is connected to which RAID card for
future reference.
• HP StoreOnce 4500 Backup system: Up to three expansion enclosures may be connected
and they are daisy chained. Two expansion options are available: HP StoreOnce 4500/4700
24TB Capacity Kit (BB881A) and HP StoreOnce 4500 48TB Capacity Kit (BB909A).
• HP StoreOnce 2700 Backup system: This model does not support connection of an expansion
enclosure.
• HP StoreOnce 2900 Backup system: This model supports capacity expansion, but the expansion
kit is a set of six 24TB hard disks that are installed in the head server unit. See Adding disks
for capacity expansion (2900 only) (page 22)
Installing expansion enclosures with the HP StoreOnce 4700
If you have purchased extra expansion enclosures, the storage in these additional enclosures will
not have been configured. For instructions on configuring additional expansion enclosures, see
Expanding storage (page 62).
Various cabling options are possible with the HP StoreOnce 4700 Backup system depending upon
available rack space, but the recommended configuration is to install the expansion enclosures
evenly above and below the head server unit.
The following table illustrates the recommended sequence in which enclosures should be attached
and distributed across the two RAID controller cards.
Table 2 HP 4700, the order in which shelves should be attached
Connect sequence for expansion shelves
to RAID card in Slot 4to RAID card in Slot 1Shelf
First1
Second2
Third3
Fourth4
Fifth5
Sixth6
Seventh7
Eighth8
Connecting to the expansion enclosure (HP StoreOnce 4500 and 4700) 19
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