Supported RAID configurations

All workstation platforms have Intel controllers. Three LSI controllers are supported on some platforms:

LSI 2308 — HP Z820 Workstations

LSI 9212-4i — HP Z420 and Z620 Workstations (optional)

LSI 9260-8i — HP Z420, Z620, and Z820 Workstations (optional) The following RAID configurations are supported.

Table B-2RAID configuration details

Configuration

 

Description

 

Controllers

 

 

 

 

 

RAID 0

Two drive minimum.

Intel with RSTe or RST

Integrated striped disk

Improved I/O performance.

LSI 2308

array

No fault tolerance.

LSI 9212-4i

 

 

Failure of any disk in the array results in

LSI 9260-8i

 

 

complete data loss.

 

 

 

Used to increase disk performance.

 

 

 

 

 

 

 

RAID 1

Two drive maximum.

Intel with RSTe or RST

Mirrored disk array

100% redundancy: all data from one drive is

LSI 2308

 

 

duplicated on a second drive.

LSI 9212-4i

 

 

 

 

Can recover from single drive failure.

LSI 9260-8i

 

 

 

 

Good entry-level redundant system.

 

 

 

 

 

 

 

RAID 5

Three or more drives (for workstations that

Intel with RSTe or RST

Striped disk array with

 

support three or more hard drives).

LSI 9260-8i

 

 

distributed parity

Fault tolerant and provides I/O performance

 

 

 

 

improvement, especially for write-biased

 

 

 

 

applications.

 

 

 

Single drive failure does not cause data loss

 

 

 

 

(performance is compromised until the failed

 

 

 

 

drive is replaced and the array rebuilt).

 

 

 

 

 

 

 

RAID 10

Four or more disks (for workstations that support

Intel with RSTe or RST

Striped and mirrored

 

four or more hard drives).

LSI 2308

 

 

disk array

Excellent performance.

LSI 9212-4i

 

 

 

 

Uses several drives to stripe data, then copies the

LSI 9260-8i

 

 

striped drives to provide redundancy.

 

 

 

Offers high data transfer of striped arrays and

 

 

 

 

increased data accessibility (reads).

 

 

 

 

 

 

 

RAID 1E

Similar to RAID 10.

LSI 2308

Two-way mirroring

Must have an odd number of disks.

LSI 9212-4i

 

Improved read performance.

 

 

 

 

 

 

 

Supported RAID configurations 167

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HP Workstatio D8D17UT#ABA, Z220 F1J90UAABA manual Supported RAID configurations, Table B-2RAID configuration details