Oracle ZFS Installation Manual page 68

Shelf
The Sun Disk Shelf is a 4U chassis that supports 24 3.5" SAS-2 drives. The SSDs provide
accelerated write operations, and the high-capacity HDDs provide reliable storage. This disk
shelf features dual, redundant SAS Interface Module (SIM) boards, and dual power supply with
fan modules.
SAS-2
The SAS-2 (Serial Attached SCSI 2.0) storage fabric supports a greater number of targets,
greater bandwidth, higher reliability and bigger scale. The scale and reliability improvements
are achieved with SAS-2 disks you can daisy-chain to as many as 36 shelves for certain systems,
for a total of 864 disks. In addition, the high-performance SAS-2 HBA is designed for the Sun
ZFS Storage 7000 series with a standard chip set to support a high-density of target devices,
capable of attachment to 1024 targets.
With this fabric, you are encouraged to apply entire shelves to pools, so you can gain the
benefits of No Single Point of Failure configurations, and striping across the maximum possible
number of devices.
The following shelves implement SAS-2 disks:
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Front Panel
The front panel consists of the drives and indicator lights.
Drive Locations
The following figures show the location of the drives.
Oracle Storage Drive Enclosure DE2-24P
68 Oracle ZFS Storage Appliance Installation Guide • January 2014 E48491–02
Oracle Storage Drive Enclosure DE2-24P
Oracle Storage Drive Enclosure DE2-24C
Sun Disk Shelf