HP Surestore Disk Array 12h - And FC60, Advanced User'S Manual, Page: 82 / 466

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Recommended Disk Array Configurations
Maximum Capacity
Note
This configuration is not recommended for environments where high
availability is critical. To achieve high availability each disk in a LUN should be
in a different disk enclosure. This configuration does not achieve that level of
protection.
•
Hardware Configuration
– Two disk array controllers connected directly to host Fibre Channel adapters
– Two disk enclosures with ten 73 GByte disks each (20 disks total)
– Disk enclosures configured for split-bus mode (two SCSI channels per enclosure)
•
LUN Configuration
– Five RAID 5 LUNs, each comprising four disks (3 data + 1 parity)
– Each disk in a LUN is on a separate SCSI bus.
•
High Availability
– Handles the failure of a single disk, single controller, or a single channel
– Does not handle a disk enclosure failure, consequently this configuration is NOT
recommended for critical high availability installations.
– Expansion requires powering down the disk array, removing terminators and/or
cables from the enclosures, and cabling additional disk enclosures.
•
Disk Capacity
– Maximum capacity 1460 GBytes
– Usable capacity 1095 GBytes