Compaq ProLiant 7000 Compaq ProLiant 7000 Server Technology - Page 16

Hot-Plug Hard Disk Drives, Compaq Smart Array 3100ES Controller, Hot-Plug Capability - system battery

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ECG078/0698 TECHNOLOGY BRIEF (cont.) ... Hot-Plug Capability When a power supply is hot swapped, the microcontroller governs the power-up and power-down sequences, enables the health drivers to calculate redundancy "on the fly," and informs the health drivers of changes in load. Compaq hot-plug power supplies are readily identifiable by their portcolored bezel, as shown in Figure 11. Port-colored bezel Figure 11: Front view of power supply with port-colored bezel. Hot-Plug Hard Disk Drives The ProLiant 7000 has three internal drive cages for hot-plug drives. Each removable drive cage holds either six 1-inch drives or four 1.6-inch drives or a combination of both. This gives users the flexibility to configure the server for either maximum number of spindles or maximum storage capacity. Maximizing the number of spindles reduces overall capacity, but it increases performance in database or other disk-intensive applications. When the server is configured for maximum capacity, it can hold 218 GB of storage (12 drives x 18.2 GB per 1.6-inch drive = 218.4 GB). When configured for maximum number of spindles, the server can hold 163.8 GB (18 drives x 9.1 GB per 1-inch drive = 163.8 GB). Compaq Smart Array 3100ES Controller The Compaq Smart Array 3100ES controller4 is a 3-channel, Wide-Ultra SCSI-3 controller that ships standard in the ProLiant 7000. The architecture of the Smart Array 3100ES improves on the Compaq SMART-2 Array Controller by: • Simplifying SCSI cabling configuration. - The extended SCSI connector routes three SCSI buses. - Three Wide-Ultra SCSI-3 buses are routed to the server's three internal drive cages. • Improving serviceability through PCI Hot Plug capabilities. • Increasing performance with 64 MB of removable, battery-backed cache board (56 MB for read/write cache). • Allowing all three drive cages to be configured as one contiguous RAID. • Faster processor memory • Future support for controller redundancy 4 For more information, see technology brief Compaq Smart Array Controller Technology, document number ECG079/0698. 16

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T
ECHNOLOGY
B
RIEF
(cont.)
16
ECG078/0698
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Hot-Plug Capability
When a power supply is hot swapped, the microcontroller governs the power-up and power-down
sequences, enables the health drivers to calculate redundancy “on the fly,” and informs the health
drivers of changes in load.
Compaq hot-plug power supplies are readily identifiable by their port-
colored bezel, as shown in Figure 11.
Figure 11: Front view of power supply with port-colored bezel.
Hot-Plug Hard Disk Drives
The ProLiant 7000 has three internal drive cages for hot-plug drives.
Each removable drive cage
holds either six 1-inch drives or four 1.6-inch drives or a combination of both.
This gives users
the flexibility to configure the server for either maximum number of spindles or maximum
storage capacity.
Maximizing the number of spindles reduces overall capacity, but it increases
performance in database or other disk-intensive applications.
When the server is configured for
maximum capacity, it can hold 218 GB of storage (12 drives x 18.2 GB per 1.6-inch drive =
218.4 GB).
When configured for maximum number of spindles, the server can hold 163.8 GB
(18 drives x 9.1 GB per 1-inch drive = 163.8 GB).
Compaq Smart Array 3100ES Controller
The Compaq Smart Array 3100ES controller
4
is a 3-channel, Wide-Ultra SCSI-3 controller that
ships standard in the ProLiant 7000.
The architecture of the Smart Array 3100ES improves on
the Compaq SMART-2 Array Controller by:
•
Simplifying SCSI cabling configuration.
-
The extended SCSI connector routes three SCSI buses.
-
Three Wide-Ultra SCSI-3 buses are routed to the server’s three internal drive cages.
•
Improving serviceability through PCI Hot Plug capabilities.
•
Increasing performance with 64 MB of removable, battery-backed cache board (56 MB for
read/write cache).
•
Allowing all three drive cages to be configured as one contiguous RAID.
•
Faster processor memory
•
Future support for controller redundancy
4
For more information, see technology brief
Compaq Smart Array Controller Technology
,
document number
ECG079/0698
.
Port-colored bezel