RAID 50 (RAID 5+0)
protects against failure of one drive (and failure of particular multiple drives).
RAID 50 is a nested RAID method that uses RAID 0 striping across RAID 5 arrays. RAID 50 tolerates
one drive failure in each spanned array without loss of data. RAID 50 requires less rebuild time than
single RAID 5 arrays RAID 50 requires a minimum of six drives.
RAID 60 (RAID 6+0)
allows administrators to split the RAID 6 storage across multiple external
boxes. RAID 60 requires a minimum of eight drives. RAID 60 is a nested RAID method that uses RAID
0 block-level striping across multiple RAID 6 arrays with dual distributed parity. With the inclusion of
dual parity, RAID 60 will tolerate the failure of two disks in each spanned array without loss of data.
RAID 1 ADM (Advanced Data Mirroring)
allows customers to create mirrored RAID set using 3
identical hard drives. This provides customers with a 2nd "live spare" for RAID 1(+0) configurations.
This allows customers to rebuild a failed drive in a RAID 1(+0) set without the array entering into a
degraded state.
Online Management
Features
Online Capacity Expansion (increase array size feature)
Advanced Capacity Expansion (shrink array and move array features)
Online RAID Level Migration (change the fault tolerance level of a configured logical drive)
Online Stripe Size Migration (change the stripe size of a configured logical drive)
Online Spares (provide automatic drive replace for a failed drive in RAID levels other than RAID 0)
User Selectable Expand and Rebuild Priority (select the priority of rebuilding data from a failed drive
over current requests from the operating system)
User Selectable Stripe Size
User Selectable Read and Write Cache Sizes
Logical Drive Extension (increase logical drive size without disturbing data)
User Selectable Surface Scan idle interval (control the background process that scans drives for bad
sectors, and verify the consistency of RAID 5 and RAID 6 parity data)
Physical Drive Write Cache control (enable drive write cache for applications like video editing that
that can tolerate data loss, and/or systems that have redundant and uninterruptible power supplies)
Availability
Provides increased server uptime by providing advanced storage functionality:
Online RAID Level Migration (between any RAID level)
Online Capacity Expansion
Logical Drive Capacity Extension
Global Online Spare
Pre-Failure Warranty
QuickSpecs
HP Smart Array P822 Controller
Standard Features
DA - 14341 North America — Version 11 — September 10, 2013
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