Dell PERC 4/DC Manual de usuario descargar pdf (Pagina 5)



Configuration Features



Table2-3 lists the configuration features for the RAID controller.



Table 2-3.ConfigurationFeatures

Hotswapofdrivesmustbesupportedbyenclosureorbackplane.



Firmware Upgrade



You can download the latest firmware from the Dell website and flash it to the firmware on the board. Perform the following steps to upgrade the firmware:

1. Go to the support.dell.com website.

2. Download the latest firmware and driver to a diskette.



The firmware is an executable file that downloads the files to the diskette in your system.

3. Restart the system and boot from the diskette.

4. Run pflash to flash the firmware.



SMART Hard Drive Technology



The Self-Monitoring Analysis and Reporting Technology (SMART) detects predictable hard drive failures. SMART monitors the internal performance of all motors,

heads, and hard drive electronics.



Drive Roaming



NOTE: Unlike initialization of logical drives, background initialization does not clear data from the drives.

Specifications

PERC 4/SC

PERC 4/DC

PERC 4e/DC

RAID levels

0, 1, 5, 10, and 50

SCSI channels

1

2

Maximum number of drives

per channel

14

14 (for a maximum of 28 on two

channels)

14 (for a maximum of 28 on two

channels)

Array interface to host

PCI Rev 2.2

PCI Express Rev. 1.0a

Cache memory size

64 MB SDRAM

Up to 128 MB SDRAM

Cache Function

Write-back, write-through, adaptive

read-ahead, non read-ahead, read-

ahead

Write-back, write-through, adaptive

read-ahead, non read-ahead, read-

ahead

Write-back, write-through, adaptive

read-ahead, non read-ahead, read-

ahead

Number of logical drives and

arrays supported

Up to 40 logical drives and 32 arrays

per controller

Up to 40 logical drives and 32 arrays

per controller

Up to 40 logical drives and 32 arrays

per controller

Hot spares

Yes

Flashable firmware

Yes

Hot swap devices supported

Yes

Non-disk devices supported

Only SCSI accessed fault-tolerant

enclosure (SAF-TE) and SES

Only SAF-TE and SES

Mixed capacity hard drives

Yes

Number of 16-bit internal

connectors

1

2

Cluster support

No

Yes

NOTICE: Do not flash the firmware while performing a background initialization or data consistency check, as it can cause the procedures to fail.

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