HP LeftHand P4000 SAN Solutions User Manual
Page 143
Table 46 Setting a data protection level for a volume
For this number of copies
Select any of these data protection levels
With this
number of
available
storage
systems in
cluster
•
One copy of data in the cluster.
•
Network RAID-0 (None)
1
2
•
One copy of data in the cluster.
•
Network RAID-0 (None)
•
•
Network RAID-10 (2–Way Mirror)
Two copies of data in the cluster.
3
•
One copy
•
Network RAID-0 (None)
•
•
Network RAID-10 (2-Way Mirror)
Two copies
•
•
Three copies
Network RAID-10+1 (3-Way Mirror)
•
•
Network RAID-5 (Single Parity)
Data striped on three storage systems including
single parity.
At least 4
•
One copy
•
Network RAID-0 (None)
•
•
Network RAID-10 (2-Way Mirror)
Two copies
•
•
Three copies
Network RAID-10+1 (3-Way Mirror)
•
•
Network RAID-10+2 (4-Way Mirror)
Four copies
•
•
Data striped on four storage systems including
single parity.
Network RAID-5 (Single Parity)
At least 5
•
One copy
•
Network RAID-0 (None)
•
•
Network RAID-10
Two copies
•
•
Three copies
Network RAID-10+1 (3-Way Mirror)
•
•
Network RAID-10+2 (4-Way Mirror)
Four copies
•
•
Data striped on five storage systems including
single parity.
Network RAID-5 (Single Parity)
•
Network RAID-6 (Dual Parity)
•
Data striped on five storage systems including
dual parity.
At least 6
•
One copy
•
Network RAID-0 (None)
•
•
Network RAID-10
Two copies
•
•
Three copies
Network RAID-10+1 (3-Way Mirror)
•
•
Network RAID-10+2 (4-Way Mirror)
Four copies
•
•
Data striped on five storage systems including
single parity.
Network RAID-5 (Single Parity)
•
Network RAID-6 (Dual Parity)
•
Data striped on six storage systems including
dual parity.
At least 7
•
One copy
•
Network RAID-0 (None)
•
•
Network RAID-10
Two copies
•
•
Three copies
Network RAID-10+1 (3-Way Mirror)
•
•
Network RAID-10+2 (4-Way Mirror)
Four copies
•
•
Data striped on five storage systems including
single parity.
Network RAID-5 (Single Parity)
•
Network RAID-6 (Dual Parity)
•
Data striped on seven storage systems including
dual parity.
Provisioning volumes
143