First Virtual Communications 3000 user manual Components, Devices, Length in Metres Transfer Speed

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Installation and Setup

Note Ultra SCSI has very stringent requirements regarding cable length. Any cables connected to Ultra devices must conform to Ultra SCSI specifications. When there are excess of 4 devices cable length should be no greater than 1.8 metres for single ended Ultra SCSI. The implication of this

is that for any Ultra SCSI system the initiator and target will try to transfer data at Ultra SCSI rates during the initialisation process regardless of the number of devices and cable length. When Ultra SCSI cable length restrictions can be violated (in the case of buses with more than 4 devices) the transfer rate must be reduced at the initiator side.

Table 2-2 Cable Lengths Vs Transfer Rates

Length in Metres	Transfer Speed
6 Metres	5 MHz (10 MB/S for wide (16 bit) SCSI-2, 5MB/S for narrow SCSI-2)
3 Metres	10	MHz (20 MB/S for wide (16 bit) SCSI-2, 10MB/S for narrow SCSI-2)
3 Metres	20	MHz (4 devices or less) Ultra SCSI single ended
1.8 Metres	20	MHz (greater than 4 devices) Ultra SCSI single ended
25 Metres	SCSI-2 Differential mode

Components

Power Supplies

The Power Supplies are housed in removal canisters and are supplied as such. To replace a power supply simply press the button as shown in Figure 2-9 and withdraw the carrier. The PSU is hot pluggable7. Refer to the heading on page 2-14 for more details.

Figure 2-9 Removal and insertion of a Power Supply Unit

Note: The Power Supplies are not Auto Sensing and there are two different types depending on the AC Input. Power Supplies for the US market are clearly marked with a label stating 115V.

Devices

Devices are housed in two types of canisters. The top LED in the device carrier indicates SCSI activity on the device and is green. The bottom LED is red and indicates a fault condition.8 A front view of the device carrier is shown in Figure 2-10.

Figure 2-10 Device carrier

7To allow correct functionality of the power supply circuitry, please ensure that at least one minute has elapsed between removal and re-insertion of the power supply unit.

2-9

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Contents Revision A41 November-1997 VoyagerContents EMU Features Figures 31 Mapping Logical Volume 0 Partition 1 to Channel 2 LUN Tables Scope Disclaimer FAX WarrantyPage Voyager 3000 Rackmountable configurations Voyager 3000 Tower configurations Model Number DescriptionVoyager 3000 Family Model Number DescriptionFWD VRA-3001T-XX-YHost Connection Codes VRA-3002T-XX-Y Internal bus configuration of VRA-3001T-XX-YVRA-3002T-XX-Y Scsi target interconnects VRA-3001R-XX-Y VRA-3001R-FW-Y example configurationVRA-3002R-XX-Y VRA-3002R-FW-Y example configurationDevice Carrier System FeaturesCooling RAID ControllerScsi Connectors Power SuppliesRAID 1 / 0+1 RAID BasicsRAID 3 layout Required Number of Drives and Net CapacityRAID 5 layout Minimum drives necessary for a RAID setAmbient Temperature Unpacking and Initial SetupAir Flow Mechanical LoadingGrounding Electrical ConsiderationsCircuit Overloading Setting the target Scsi Ids on a VRA-3001 system Setting the host Scsi IdsSetting the target Scsi Ids Rear view of single tower showing host connections Setting the Target Bus Scsi IDs Setting the target Scsi Ids on a VRA-3002 systemLocation of DPS1 on VRA-3002 second backplane Scsi ID Switch DPS1 Off Cabling and Termination IssuesLength in Metres Transfer Speed ComponentsDevices SCA attachment Power Option BoardController Description Part Number11 RAID Controller Advanced Cooling Modules 13 Installing SIMMsDrive Removal Component Insertion and removalDrive Insertion Controller Insertion and Removal PSU Insertion and RemovalIntroduction Environmental Monitoring Unit ConfigurationsEMU Features Dual shelf configuration System ConfigurationsSingle Shelf configuration Location of EMU within the shelf Setting up the EMUID settings for the EMU EMU Switch SettingsAvailable EMU information Power Sequencing SignalsSW5 SW6 Read Only Memory locations within the EMUInterpreting the EMU LED feedback Interpreting the EMU LED FeedbackDevices/events monitored by the EMU Connecting the EMUs together Connecting the EMUThis page is intentionally left blank Controller Description Controller ConfigurationConnecting a Monitor Accessing the Voyager 3000 MenusRS232 Terminal Settings Emulating a MonitorWindows Program Manager Setting Windows Terminal Emulation Windows Terminal Preferences Screen Windows Terminal Communication Settings Creating a logical volume10 Initial Screen 12 Verifying Drive Configuration 14 Creating a logical drive 16 Selecting drives for inclusion in a RAID set 19 Progress of RAID set creation Creating a Second Logical Volume22 Viewing all Logical Drives Adding a Global Spare24 Allocating Capacities to partitions Partitioning a Logical Volume27 Mapping Host LUNs Mapping Host LUNs29 Selecting a Volume for LUN mapping Scan New Scsi Drives De-assigning LUN MappingView and Edit Scsi Drives View and Edit logical drivesScsi ID View and Edit Scsi Channels37 View and edit Scsi target 38 View and edit configuration parameters View and Edit Configuration ParametersDown Loading New Firmware View and Edit Peripheral DevicesSystem Functions View System Information Quick InstallationRAID3 RAID5 Creating a New Logical DriveRAID0 NEW DRV Microp Viewing Disks Assigned to a Logical DriveDRV=5 Mapping a Logical Drive to a Host Channel and LUN Assigning a Spare DriveDeleting a Logical Drive Setting the Scsi ChannelsCHL SXF=10MCHL=0 Channel Terminator SettingSequential Drive Spin-Up Setting Scsi Reset at Power-Up SettingData Cache Setting Viewing Connected DrivesAdding New Drives into Current List Issuing a ResetSerial Number Download FirmwareVoyager 3000 User Guide Operating Temperature Scsi connectorsWeight RAID levelPower consumption