HP StoreOnce 4430 HP StoreOnce 2600, 4200 and 4400 Backup system Maintenance a - Page 21

HP StoreOnce 4420 Backup system The HP StoreOnce 4420 Backup system has three RAID controllers. • The P410i RAID controller is integral to the DL370G6 motherboard and is used to control the 12 hard disk drives internal to the HP StoreOnce 4420 Backup system via the HP SAS Expander card in slot 1. It is identified as sa_controller_0 in the StoreOnce GUI and CLI. • The two P411 cards are used to connect the external storage shelves to the StoreOnce 4420 Backup system and are located in PCI-e slots 5 and 6. They are identified as sa_controller_5 and sa_controller_6 in the StoreOnce GUI and CLI. • Each P410i and P411 RAID controller is fitted with 512 MB RAM and one 512 MB FBWC (Flash Backed Write Cache). NOTE: If you replace a motherboard with integral P410i card, or a P411 card, you must add the RAID 6 license for the card, as described in the relevant sections below. Figure 8 HP StoreOnce 4420 Backup system, location of the P411 controller and HP SAS expander card 1 and 2 P411 RAID controllers 3 HP SAS expander card WARNING! To reduce the risk of personal injury or damage to the equipment, consult the safety information and user documentation provided with the server and RAID controllers before attempting the installation. Part numbers Part numbers for the replacement RAID controllers are as follows: • The P410i card is integral to the motherboard and cannot be replaced separately. • HP Smart Array P411/512 MB with FBWC Controller: 578229-B21 Identifying a RAID controller failure RAID card failures are reported in the Events log and in email and SNMP alerts, if you have set them up. You can identify which card has failed by looking at the Hardware Problem Report and the Hardware tree of the Storeonce GUI - or use the StoreOnce CLI command, hardware show problems, as described in Chapter 2. Remember that the P410i card is identified as "sa_controller_0"; the P411 cards are identified by their slot number. Any issues with logical units on this page also indicate a problem. If the HP SAS expander card is at fault, disks will not be visible on sa_controller_0. Part numbers 21