Parity group configuration – HP XP Data Shredder Software User Manual
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Table 10 Capacity of a Slot
Capacity of a Slot
Emulation Type
48
3380-xx, NF80-xx
58
3390-xx
48
OPEN-xx
(except for OPEN-V)
256
OPEN-V
NOTE:
•
xx is a variable indicating one or more numbers or letters.
•
Slot capacity is expressed in kilobytes.
Table 11 Calculated Management Area Capacities
RAID6 (6D+2P)
RAID5 (7D+1P)
RAID5 (3D+1P)
RAID1 (2D+2D)
Emulation Type
8,017,920
10,913,280
2,004,480
445,440
3390-xx
2,211,840
3,010,560
552,960
122,880
OPEN-V
NOTE:
•
xx is a variable indicating one or more numbers or letters.
•
Calculated management area capacities are expressed in slots.
•
A SATA drive supports the following emulation types:
3390-xx for a mainframe system.
OPEN-V for an open system.
Parity Group Configuration
One parity group consists of a maximum of 20 VDEVs. For RAID5 (7D+1P) or RAID6 (6D+2P) levels,
a maximum of 2,048 fixed-size volumes (FVs) and a certain amount of free space are available
in one VDEV. For other RAID levels, a maximum of 1,024 FVs and a certain amount of free space
are available in one VDEV. Each VDEV in a parity group has the same configuration, and is
assigned the same FVs of the same size and RAID level.
The functions of VLL (Volume to Space, Install CV, Volume Initialize, and Make Volume) are
performed on each VDEV. VDEVs are also separated from each other by the boundary limitation.
Therefore, you cannot define a volume across two or more VDEVs beyond the boundaries.
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About Virtual LVI/LUN and Volume Shredder