Manuals

System Overview: Dell™ PowerVault™ 660F and 224F Storage Systems Service Manual

	Overview		Service Features
	Features		Technical Specifications

Overview

The Dell PowerVault 660F and 224F storage systems are external, flexible, high availability systems that feature 14 Fibre Channel (FC) hard-disk drives and support JBOD and redundant array of independent disks (RAID). The storage system may be attached directly to one or two PowerEdge™ servers, or the connection to servers may be made via one or two PowerVault 5xF Fibre Channel switches.

This section describes the hardware features, with emphasis on those features that simplify servicing of the systems. It also describes software requirements of these storage systems.

Features

• Fourteen 1-inch, FC, 10,000 (10K) revolutions per minute (rpm) and 15K rpm hot-swappable hard-disk drives
  
  
• 3U form factor
  
  
• Optional one or two Dell Fibre Disk RAID Controllers
  
  
• Two hot-swappable loop resiliency circuit/SCSI enclosure services (LS) modules  provide active/passive failover of enclosure services as well as monitoring and control of Fibre Channel loops
  
  
• Two removable option slot modules
  
  
• Two redundant, hot-swappable power supply modules
  
  

• Two hot-swappable advanced cooling modules (ACMs) with two fans each for 3-plus-1 fan redundancy
  
  
• FC 15K rpm-compliant shielded carrier with a universal design accommodating 1-inch hard-disk drives
  
  
• One single-color and one bicolor light-emitting diode (LED) per carrier
  
  
• Six LEDs on LS modules indicating shelf power, shelf fault,  FC loop A and loop B status, and LS module fault (the bottom  LED is reserved for future use)
  
  
• Audible alarm for enclosure events (disabled manually or with software)
  
  
• RapidRails™ rack mounting kit
  

Option Slot Modules

The two rear option slots on your PowerVault 660F and 224F may be configured with one or more modules including: Dell Fibre Disk RAID Controller, copper or optical I/O expansion modules.

Dell Fibre Disk RAID Controller

The Dell Fibre Disk RAID Controller is supported in either a single controller or dual controller configurations. A single RAID controller is supported in the primary slot, option slot 0 (the rightmost slot, as viewed from the back). A second RAID controller is supported in the secondary slot, option slot 1 (the leftmost slot, as viewed from the back). Active/active fail-over capability is supported when redundant RAID controllers are used. The redundant RAID controllers must be installed into the same PowerVault 660F storage system enclosure and will have shared FC device channels. The RAID controller also provides a pass-through FC device loop for loop expansion.

The Dell Fibre Disk RAID Controller supports up to 112 hard-disk drives.  The controller also supports single-controller (simplex) configurations and dual- controller (duplex) configurations for redundancy. In addition, the Dell Fibre Disk RAID Controller offers the following features:

• Support for 128 megabytes (MB), 256 MB, and 512 MB of ECC-protected synchronous dynamic random access memory (SDRAM).
  
  
• Three Fibre Channel ports, each providing a 1 Gb/sec FC_AL class 3 interface. These interfaces adhere to the Fibre Channel Arbitrated Loop Direct Disk Attach Profile. The host port supports direct or switch attached connection and the two remaining ports provide the disk interfaces.
  
  
• Host connection is made through a DB 9-type connector. The controller also has a high-speed serial data connector (HSSDC)-type expansion connector port that allows additional PowerVault 224F enclosures to be daisy-chained onto a PowerVault 660F, creating a maximum of 112 hard-disk drives.
  
  
• The hot-pluggable controller supports the insertion, removal, and replacement of hard-disk drives, enclosures, fans, power supplies, and other system components without shutting down the system.
  
  
• In a simplex or duplex configuration, the controller supports up to 32 data logical unit numbers (LUNs).
  
  
• Supports either write-through or write-back data caching.
  
  
• Supports a pool of hard-disk drives marked as standby hot-spare drives.
  
  
• Supports hot-swap drive replacement while the system is online.
  
  
• Supports automatic rebuild operation if a physical disk drive fails in a redundant RAID.
  
  
• Supports mixed hard-disk drive capacities and rpm.

I/O Expansion Module – Copper

The copper input/output (I/O) expansion module is used for PowerVault 660F and 224F JBOD applications and to provide FC device expansion from the Dell Fibre Disk RAID Controller or optical I/O expansion module. The I/O expansion module has two HSSDC FC connectors. The first HSSDC connector is the primary FC loop input port and the second HSSDC connector is available for FC loop expansion. A loop-back terminator is not required since the I/O expansion module will automatically enable the expansion HSSDC connector when valid FC signals are present on the expansion connector.

I/O Expansion Module – Optical

The optical I/O expansion module is used for PowerVault 224F JBOD applications. The optical FC I/O module allows for longer cable distances with fibre optic transceivers and cables. The optical cable length supported will be per the optical transceiver specification.

The 1-Gb/s optical FC I/O expansion module has the SC optical connector as the FC loop input port. The FC loop expansion is done using the HSSDC connector.

Service Features

The storage system chassis simplifies removing and replacing components. You can replace power supplies, ACMs, LS modules, I/O expansion modules, and hard-disk drives without removing chassis covers or other components.

Technical Specifications