Manualshelf

User's Manual

ManualsBrandsDell ManualsComputersOpenManage Server Administrator Managed Node for Fluid Cache for DAS
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Contents 7
Storage Controllers . . . . . . . . . . . . . . . . . . . 87
Storage Components
. . . . . . . . . . . . . . . . 90
8 Controllers . . . . . . . . . . . . . . . . . . . . . . . . 91
What is a Controller? . . . . . . . . . . . . . . . . . . 91
RAID Controller Technology: SCSI, SATA, ATA,
and SAS
. . . . . . . . . . . . . . . . . . . . . . . . . 92
RAID Controller Features
. . . . . . . . . . . . . . . . 93
Controller-supported RAID Levels. . . . . . . . . . . . 94
Controller-supported Stripe Sizes
. . . . . . . . . . . . 94
RAID Controller Read, Write, Cache, and
Disk Cache Policy
. . . . . . . . . . . . . . . . . . . . 95
Read Policy
. . . . . . . . . . . . . . . . . . . . . 95
Write Policy
. . . . . . . . . . . . . . . . . . . . . 96
Cache Policy . . . . . . . . . . . . . . . . . . . . 97
Disk Cache Policy
. . . . . . . . . . . . . . . . . . 98
Cluster-enabled RAID Controllers
. . . . . . . . . . . . 98
Updating the Display of Clustered
Resources
. . . . . . . . . . . . . . . . . . . . . 99
Downloading Firmware and Cluster
Controllers
. . . . . . . . . . . . . . . . . . . . . 99
Creating and Deleting Virtual Disks on
Cluster-enabled Controllers
. . . . . . . . . . . . . . . 99
Integrated Mirroring and the PERC 4/IM
Controller
. . . . . . . . . . . . . . . . . . . . . . . . 100
Background Initialization on PERC Controllers
. . . . . 101
Non-RAID Controller Description
. . . . . . . . . . . . 101