HP ProLiant DL585 G7 server technology
Smart Array P410i controller
The DL585 G7 includes the HP Smart Array P410i controller, the latest in the series of Smart Array
controllers. The Smart Array P410i is the HP PCI Express 2.0 (PCIe) Serial Attached SCSI RAID
controller. The P410i is ideal for RAID 0/1, 1+0, and 5+0. The controller uses DDR2-800 memory for
on-board data storage. The 512 MB BBWC module and Smart Array Advanced are upgrades using
a license key for RAID 6 and 6 +0. The P410 has eight ports for up to eight drives providing up to
4.8TB of total disk storage (8 x 600GB HDD). It also supports tape storage.
On the Smart Array P410i, a flash-backed write cache (FBWC) module comes standard with either
512 MB or1GB, depending on the model. Battery-backed write cache (BBWC) modules are also
available on factory-configured systems.
The following failure-detection features keep the server running and data available while
automatically replacing a failed drive and taking preventive action:
Self Monitoring Analysis and Reporting Technology (SMART), developed at HP, detects
possible disk drive failure before it occurs, allowing replacement of the component before
failure occurs.
Drive Parameter Tracking monitors drives’ 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 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 the integrity of the controller cache, allowing pre-
failure preventative maintenance.
Recovery ROM stores a redundant copy of the image in case of firmware image corruption. 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. You can extend the data backup duration any time the server's auxiliary power is
available.
On-Line Spares minimize downtime, reconstruct data, and facilitate a quick recovery from
drive failure. You can install up to two spare drives prior to drive failure. If a failure occurs,
recovery begins with an On-Line Spare and data reconstruction occurs automatically.
Online Drive Flashing is available on the SA-P410. With Online Drive Flashing, you can download
an updated hard disk drive (HDD) firmware image to the SA-P410 and update all of your SAS HDDs
the next time you reboot the server, greatly reduc
ing the time involved in updating disk drive
firmware.
Mirror Splitting and recombining with HP Smart Array Advanced Pack (SAAP) let you divide a RAID 1
array into two RAID 0 arrays and later combine the two RAID 0 arrays into a single RAID 1 array.
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