The HP p1228 RAID controller
The p1228 RAID card in a StoreOnce 4900 server
The HPE StoreOnce 4900 Backup system uses the HP p1228 RAID controller fitted with a RAID cache
module and SuperCapacitor. The HPE StoreOnce 4900 Backup has two RAID controllers. Cables
connect the external SAS ports on the controller to the SAS storage in the disk enclosure(s). The RAID
cache module is seated on the RAID card and has one port to connect to the SuperCapacitor (which is
located in the center of the unit, clipped to the floor of the chassis behind the disk cage).
HP p1228 spares part numbers
Replacement spares part numbers for the p1228 card are as follows:
• HP p1228 RAID controller: 728099-001
• Internal SAS cable: 675610-001
• External SAS cable: 691973-003
This connects the RAID controller in the server unit to the SAS disks in the disk enclosure. The same
cable is used if a second disk enclosure is installed (HPE StoreOnce 4900 60TB Capacity Expansion).
Figure 2: HP p1228 RAID card
The HP p1228 RAID controller 31
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