CMD Technology CRD-5500 RAID
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`http://www.cmd.com/brochure/crd5500.htm
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`Once again, CMD has raised the standard by which all other RAID controllers will be compared! CMD's CRD-5500 SCSI to SCSI RAID
`controller is the industry's best solution for building high performance, high availability SCSI disk array subsystems. CMD's years of
`experience as an industry leader in high performance, advanced technology RAID controllers and SCSI host adapters for Unix, midrange,
`and PC systems has given CMD unmatched insight in designing a second-generation disk array controller solution that allows OEMs,
`VARs, and system integrators to build the best RAID subsystems available today.
`
`Key Benefits
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`The CRD-5500 was designed to satisfy the most demanding requirements of today's sophisticated RAID user; it gives you high
`performance in every application, without compromising reliability or data integrity. The key to the CRD-5500's outstanding performance
`is CMD-designed proprietary ASIC components, as well as innovative caching and RAID algorithms. Unlike other RAID controllers,
`CMD's advanced "Viper" RAID architecture and ASICs were designed to support tomorrow's high speed serial interfaces, such as
`Fiberchannel (FCAL) and Serial Storage Architecture (SSA). In addition, the CRD-5500's modular design allows the user to quickly and
`easily configure an optimal RAID subsystem simply by installing individual Fast, Fast/Wide, or Fast/Wide/Differential SCSI interface
`modules and up to 512 MB of data cache using industry standard SIMMs.
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`Advanced Features
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`(cid:122) Over 6,450 IOPS and 17 MB/Sec. per SCSI Host Channel
`(cid:122) 40 MHz, 32-bit LR33310 RISC CPU (MIPS R3000 core)
`(cid:122) Proprietary CMD RAID ASICs for advanced features and highest performance
`(cid:122) Up to 512 MB of Data Cache using industry-standard, 72-pin SIMMs
`(cid:122) RAID levels 0, 1, 0+1, 4, 5, and JBOD
`(cid:122) Modular, scalable design
`(cid:122) Up to eight Fast or Fast/Wide SCSI disk channels
`(cid:122) Up to four Fast/Wide or Fast/Wide/Differential SCSI host channels
`(cid:122) Dual redundant controller option
`(cid:122) Standard 5¼ inch, full-height form factor
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`Scalable Performance, Features & Configuration
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`CMD designed the CRD-5500 with the OEM, VAR, and Reseller in mind. The CRD-5500's scalable architecture was designed to allow
`
`http://web.archive.org/web/19961226091552/http://www.cmd.com/brochure/crd5500.htm
`
`4/29/2014
`
`Oracle/Dot Hill Ex. 1005, pg. 1
`
`

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`CMD Technology CRD-5500 RAID
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`Page 2 of 3
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`you to configure a RAID storage solution for every application, from entry-level imaging workstations to fully fault-tolerant, high-capacity
`OLTP and Video-on-Demand servers. Unlike other RAID controllers, CMD's unique and modular design uses individual SCSI interface
`modules that allow the user to increase performance and expand subsystem capabilities by simply adding modules. The controller has nine
`module slots. Up to four slots may contain modules configured as host channels. Slots not configured as host channels may be used as
`drive channels. CMD offers the following SCSI modules for use in the CRD-5500:
`CRD-5530 Fast, Single-Ended (disk channels only)
`CRD-5540 Fast/Wide, Single-Ended (disk or host channels)
`CRD-5560 Fast/Wide, Differential (disk or host channels)
`
`Only CMD allows you to easily add new interfaces or more powerful modules as they become available, protecting your valuable storage
`investment.
`
`Unmatched Performance & Reliability
`
`CMD's CRD-5500 provides unequaled performance! To meet the performance requirements of tomorrow's high-speed serial interfaces,
`CMD designed the CRD-5500 to use the MIPS R3000 family of 32-bit RISC processors and proprietary CMD custom ASIC logic
`components. Four separate ASICs for RAID (Exclusive OR), DRAM management (fast page mode DRAM control), CPU-I/O (CPU
`support logic), and DMA (high-speed data path management) functions, together with an internal 80 MB/sec. 36-bit (32 data and four
`parity) data bus provides the CRD-5500 with up to 6500 I/Os per SCSI host channel.
`
`Users can install up to four industry-standard 72-pin SIMMs to provide a total of up to 512 MB of (user-selectable) Write-Back or Write-
`Through cache. To provide guaranteed data integrity, the CRD-5500 includes a built-in battery charger and monitoring circuit that supports
`an external 6.6 VDC sealed, lead-acid type battery (not included) for cache power backup. For use with external UPS systems, an optional
`"2-minute warning" input is also provided. In either case, the CRD-5500's intelligent power management circuitry assures cached data
`integrity during extended power blackouts or enclosure power supply failure.
`
`Unlimited Configuration Flexibility
`
`The CRD-5500 allows almost unlimited configuration flexibility! Each CRD-5500 supports up to 32 logical devices (RAID sets or JBOD
`disks) as separate SCSI logical unit numbers (LUNs). Logical devices can be mapped to individual host channels as shared or non-shared,
`with a LUN number unique to a specific host bus. RAID sets can be configured in any orientation and can consist of one to 56 drives,
`depending on RAID level and other options selected. Partitioning is supported on a per-LUN basis (up to 16 per RAID set), as well as
`Write-Through or Write-Back caching. Global (floating) spare disks and standalone (JBOD) disk drives are also supported. In addition, the
`CRD-5500's Dynamic Reconfiguration capability allows individual disk drives and RAID sets to be removed and re-installed in any
`location. High performance, fault tolerant RAID subsystems can be configured using two CRD-5500s in a redundant configuration
`(depending on host platform and operating system capabilities).
`
`Choose a RAID Level To Optimize Performance and Data Availability
`
`The CRD-5500 gives you the option of selecting the RAID level that best suits your application's unique requirements. Each RAID set can
`be formatted as RAID 0 (for high throughput without data protection), RAID 1 (disk mirroring for small capacity applications), RAID 0+1
`(mirrored RAID 0 arrays), RAID 4 (for large file size, high throughput applications), or RAID 5 (for small file applications, such as OLTP
`or database servers). Regardless of the RAID level you choose, the CRD-5500's exclusive RPM (RAID Performance Monitor) algorithms
`provide information on cache hit rates, stripe size, and I/Os per second that allow you to fine-tune your RAID subsystem for maximum
`performance.
`
`Other CRD-5500 Key Features Include
`
`http://web.archive.org/web/19961226091552/http://www.cmd.com/brochure/crd5500.htm
`
`4/29/2014
`
`Oracle/Dot Hill Ex. 1005, pg. 2
`
`

`
`CMD Technology CRD-5500 RAID
`
`Page 3 of 3
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`(cid:122) Global spare disk and dynamic rebuild. Multiple disks can be configured as hot or warm spares.
`(cid:122) Supports mixed disk drive vendors and capacities, even within the same RAID set!
`(cid:122) Front panel LCD display, I/O channel LEDs, and audible alarm for reporting critical failures.
`(cid:122) Comprehensive statistics and debug utility (via terminal) for optimizing subsystem performance.
`(cid:122) Dual controller option for building true fault tolerant subsystem configurations.
`(cid:122) RS-232 serial terminal interface for configuration and monitoring.
`(cid:122) Remote Terminal Services (RTS) Asynchronous Event Notification interface option.
`(cid:122) Separate termination power input for SCSI disk drives.
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`Specifications
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`General
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`System Architecture
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`Host Bus Interface
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`Disk Bus Interface
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`Command Queuing
`Cache
`Operating Systems
`Supported
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`LR33310 32-bit RISC CPU. Internal 80 MB/sec., 36-bit DMA data path and XOR using CMD's custom ASIC
`RAID chipset.
`Up to four, 20 MB/sec. Fast/Wide/Single-Ended or 20 MB/sec. Fast/Wide/Differential SCSI.
`Up to eight, 10 MB/sec. Fast/Single-Ended, 20 MB/sec. Fast/Wide/Single-Ended or
`20 MB/sec. Fast/Wide/Differential SCSI (up to 56 SCSI disk drives per CRD-5500.
`64 commands (host and disk SCSI channels)
`Up to 512 MB (up to four, industry-standard 72-pin, 60 nanosecond SIMMs)
`Any operating system that supports standard SCSI with block size from 256 to 520 bytes (in eight-byte
`increments) and SCSI LUNs
`
`Environmental
`Temperature
`5°C to 50°C operating, -40°C to +60° non-operating
`Relative Humidity 10% to 85% non-condensing (operating), 5% to 90% non-condensing (non-operating)
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`Physical
`Controller
`Size
`Power
`Required
`Reliability
`Warranty
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`8.1 inches deep, 5.57 inches wide, 3.25 inches high (full-height 5¼ inch form factor) 8 pounds maximum weight
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`5 VDC @ 6 amps peak, not including disk termination power requirements. 12 VDC @ 1.2 amps peak, includes
`battery charger current requirements.
`MTBP/MTTR: 450,000 POH, 20 minutes MTTR
`Three years return to factory. Custom warranty programs available.
`
`Ordering Information
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`Specifications subject to change without notice.
`
`The CRD-5500 may be ordered in many configurations, depending on the number and type of SCSI modules required. SIMM cache
`modules are not available from CMD but may be purchased off-the-shelf from any major computer parts distributor. Basic CRD-5500
`models and standard options are as follows:
`CRD-5500-015 CRD-5500 with one Fast/Wide host and five Fast SCSI disk channels
`CRD-5500-105 CRD-5500 with one Fast/Wide/Differential host and five fast SCSI disk channels
`CRD-5530
`Additional Fast/Single-Ended SCSI channel module
`CRD-5540
`Additional Fast/Wide/Single-Ended SCSI channel module
`CRD-5560
`Additional Fast/Wide/Differential SCSI channel module
`
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`
`Revised: Wednesday, December 4, 1996
`© CMD Technology, Inc.
`Web Design by Advanced Network Solutions
`
`http://web.archive.org/web/19961226091552/http://www.cmd.com/brochure/crd5500.htm
`
`4/29/2014
`
`Oracle/Dot Hill Ex. 1005, pg. 3