HP ProLiant DL585 G5/G6 server technology
Smart Array P410 controller
The DL585 G6 includes the Smart Array P410 controller. The HP Smart Array P410 is the HP PCI
Express 2.0 (PCIe) Serial Attached SCSI RAID controller. The low profile, half height card has 8 ports
and utilizes DDR2-800 memory. The P410 is ideal for RAID 0/1, 1+0, and 5+0. It can be upgraded
with the 512MB BBWC module and Smart Array Advanced through the license key for RAID 6 and 6
+0. The P410 supports up to 12 drives and up to 2TB of total storage (6 x 500GB HDD). It also
supports tape storage.
On the Smart Array P410, a battery module is available with the 512MB BBWC upgrade module. In
the event of a controller/server failure, the BBWC equipped Smart Array cache can be removed from
the SA-P410 controller and placed on another SA-P410 controller board; the cached data will be
flushed to the disk drives.
The following features offer failure detection. They keep the server running and keep data available
while a failed drive is being replaced, which allows preventive action to be taken:
Self Monitoring Analysis and Reporting Technology was developed at HP and detects possible hard
disk failure before it occurs, allowing replacement of the component before failure occurs.
Drive Parameter Tracking monitors drive operational parameters, predicting failure and notifying
the administrator.
Dynamic Sector Repairing continually performs background surface scans on the hard disk drives
during inactive periods and automatically remaps bad sectors, ensuring data integrity.
RAID 6 with ADG (Advanced Data Guarding) allocates two sets of parity data across drives and
allows simultaneous write operations. This level of fault tolerance can withstand two simultaneous
drive failures without downtime or data loss.
RAID 5 (Distributed Data Guarding) allocates one set of parity data across drives and allows
simultaneous write operations. This level of fault tolerance can withstand a single drive failure
without downtime or data loss.
RAID 5+0 is a RAID 0 array striped across 5 elements. It combines the straight block-level striping
of RAID 0 with the distributed parity of RAID 5.
RAID 1, 1+0 (Drive Mirroring) allocates half of the drive array to data and the other half to
mirrored data, providing two copies of every file. It is a high-performance RAID.
Smart Array Cache Tracking monitors integrity of controller cache, allowing pre-failure preventative
maintenance.
Recovery ROM protects from firmware image corruption by storing a redundant copy of the image.
If the active image becomes corrupt, the controller will use the redundant image and continue
operating.
DRAM ECC detects and corrects data bit errors.
Battery-backed write cache upgrade provides up to two days of battery power for data cache
retention. The data backup duration can be extended any time the server's auxiliary power is
available during system power down.
On-Line spares minimize downtime, reconstruct data, and facilitate a quick recovery from drive
failure. Up to two spare drives can be installed prior to drive failure. If a failure occurs, recovery
begins with an On-Line Spare and data is reconstructed automatically.
Online Drive Flashing is available on the SA-P410. Refer to the Smart Array P400 controller section
for a description of this feature.
Mirror Splitting and recombining with HP Smart Array Advanced Pack (SAAP) allows the user to
divide a RAID 1 array into two RAID 0 arrays and later combine the
two RAID 0 arrays into a single
RAID 1 array. The Array Configuration Utility (ACU) lets the user combine any two RAID 0 arrays of
the same size and select which drive contains the data to keep. Currently, this feature is only
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