Dell PowerVault TL4000 Instrucciones de operaciones Pagina 12
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5.2 SCSI requirements
The AP Series tape library incorporates a wide SCSI-2 or SCSI-3 Low-Voltage
Differential (LVD) SCSI bus, but may also be attached to a Single-Ended (SE) SCSI bus. Make sure your
SCSI host adapter or controller supports these standards. If you connect the library to an SE SCSI bus,
or if there are SE devices attached to the same SCSI bus, the library’s performance is limited to the
maximum data transfer speed and maximum cable lengths of the SE bus. For these reasons,
PIVOTSTOR, LLC strongly recommends that you do not use a SE SCSI bus with the library.
IMPORTANT: Do not connect an LTO3 device to a SE SCSI bus, as it will severely degrade
performance.
IMPORTANT: The AP Series tape library is NOT compatible with a standard differential (Diff) or High-
Voltage Differential (HVD) SCSI bus. This library is compatible with a narrow (50-pin) SCSI
bus using a 68-pin to 50-pin adapter that terminates the unused 18 pins (Not included with
the library). These adapters are sometimes labeled high-byte termination.
5.3 SCSI host bus adapters (HBAs)
To get optimum performance from your AP Series tape library you need a SCSI bus that can transfer
data at a rate that supports the library’s maximum burst transfer speed, see ”Maximum storage
capacity and data transfer rate” on page 11.
If necessary, install a SCSI host adapter, software, and compatible driver(s). Refer to the manuals for
the host computer and the SCSI host adapter for detailed information.
A single-ended SCSI host bus adapter will severely degrade performance and limit cable length. Also, if
there is any SE devices on the same SCSI bus, the entire SCSI bus will negotiate down to SE speed,
severely degrading performance.
5.4 LUN scanning
The AP Series tape library uses a single SCSI ID per drive and dual LUNs to control the tape drive (LUN
0) and library robotic (LUN 1). The library requires an HBA that supports LUN scanning. If it is not
enabled, your host system will not scan beyond LUN 0 and will fail to discover the library. It will just see
the tape drive.
IMPORTANT: Some HBAs, such as RAID controllers, do not support LUN scanning.
- Automatic Protection (AP) 1
- User and Service Guide 1
- Copyright 2
- Trademark Notices 2
- Contacting PivotStor, LLC 2
- About this guide 3
- 1 Warnings and symbols 4
- 1.1 Precautions 5
- 1.3 Rack stability 5
- 2 Contents 6
- 3 Figures 8
- 4 Tables 10
- 5.2 SCSI requirements 12
- 5.4 LUN scanning 12
- Back panel overview 16
- 5.6 Installing the library 18
- SCSI cable 19
- Rack mount kit: 19
- Documentation CD 19
- Library 19
- Terminator 19
- 6.1 Operating Modes 26
- 6.2 OCP Philosophy 26
- 6.3 Power-Up Display 26
- Idle Rand 27
- 6.4 Note about the LED’s 28
- 6.5 Input Modes 28
- 6.6 Power ON/OFF 29
- Robotic Drive 1 30
- AP Series 31
- PivotStor 31
- Commands 32
- Open Mailslot 32
- Service Menu 34
- Library Veryfy 34
- Run Test Service 34
- 6.8 Tape cartridges 35
- Tape’s media pool 36
- Data residing on the tape 36
- Age of the backup 36
- 1 Write-enabled 37
- 2 Write-protected 37
- 3 Write-protect switch 37
- Barcode label 37
- Insertion arrow 37
- 7.1 Overview 40
- 7.3 Library status icons 41
- 7.4 Login 41
- 7.5 Identity 42
- 7.6 Status 43
- 7.7 Configuration 44
- IP Address 45
- Network Mask 45
- Gateway Address 45
- Setting date/time 47
- Setting error log mode 47
- 7.8 Operations 48
- 7.9 Service 50
- 8.1 Possible tools needed 53
- 8.2 Electrostatic Discharge 53
- To remove a power supply: 56
- 9 Troubleshooting 60
- 9.2 Troubleshooting table 61
- 9.3 Service Procedures 64
- AP Series Remote Management 66
- Right magazine release 67
- Left magazine release 67
- Example error code 68
- 10 Technical specifications 74
- 11 Regulatory Information 76
- 12 Index 78
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