....................................... Viper 200 LTO Tape Drive ....................................... STU42001LW, STU42001WD ....................................... STU62001LW, STU62001WD ....................................... STU42001FC ....................................... Product Manual .......................................
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....................................... Viper 200 LTO Tape Drive ....................................... STU42001LW, STU42001WD ....................................... STU62001LW, STU62001WD ....................................... STU42001FC ....................................... Product Manual .......................................
© 2002 Seagate Removable Storage Solutions LLC All rights reserved Part Number 100248194 Seagate and the Seagate logo are registered trademarks of Seagate Technology LLC. Viper and the Viper logo are trademarks or registered trademarks of Seagate Removable Storage Solutions LLC. Linear Tape-Open, LTO, Ultrium, and the Ultrium logo are U.S. trademarks of HP, IBM, and Seagate. Other product names are trademarks or registered trademarks of their owners.
FCC notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
About this manual Seagate provides this manual “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Seagate reserves the right to change, without notification, the specifications contained in this manual.
Contents i Contents Introduction 1 About the Ultrium tape format ..................................................................................... 1 About the Viper 200..................................................................................................... 2 Features and benefits ........................................................................................... 3 Specification summary..........................................................................................
ii Viper 200 LTO Product Manual Installing an internal HVD or LVD Viper drive ...........................................................17 1. Configuring an internal HVD or LVD drive ......................................................17 2. Mounting an internal HVD or LVD drive..........................................................18 3. Connectors and cables ...................................................................................19 Installing an internal Fibre Channel Viper drive .........
Contents iii Background......................................................................................................... 44 Intelligent data compression ............................................................................... 45 Interfaces 47 Parallel SCSI interface .............................................................................................. 47 SCSI message codes ......................................................................................... 47 SCSI-2 ANSI X3.
iv Viper 200 LTO Product Manual Figures Figure 1. Internal HVD/LVD Viper drive—dimensions .....................................................................................7 Figure 2. Internal Fibre Channel Viper drive—dimensions ..............................................................................8 Figure 3. Back view of the Viper 200 internal drive, showing jumper settings ...............................................18 Figure 4.
Introduction 1 1 Introduction About the Ultrium tape format The Viper® 200 complies with the LTO Ultrium 8-channel format specification U-18. The Ultrium tape format is specifically designed for maximum data storage capacity. The Ultrium format achieves this high capacity by using long (600-meter) and wide (1/2-inch) tape media. Data is recorded in 384 tracks, grouped in four bands, each bounded by two servo tracks, for extreme reliability.
2 Viper 200 LTO Product Manual Four generations of storage solutions The Ultrium format of LTO technology defines a four-generation technology roadmap, which provides aggressive, attainable specifications based on the current technologies in use today.
Introduction 3 Features and benefits The following table summarizes the features and benefits of the Viper 200 drives.
4 Viper 200 LTO Product Manual Features Benefits Supports native firmware of a wide variety of UNIX platforms Reduced set-up and configuration time Support for Ultra SCSI-2 Low Voltage Differential, High Voltage Differential, and Fibre Channel interfaces Compatible with the today’s and tomorrow’s highperformance interfaces Remote diagnostics Increases data safety through monitoring and testing capabilities; Individual feature set or private label capabilities for each system OEM and automation manu
Introduction 5 Specification Reliability Value Load/Unload (peak): Thread/Unthread (peak): MTBF: Loads/Unloads: Threads/Unthreads: Head Life: Cartridge Life Loads/Unloads: 15 watts (0.2 sec) 23 watts (0.2 sec) 250K hrs @ 100% Duty cycle 300K cycles 100K cycles 30K hours 5K cycles Management/diagnostic software The Viper 200 includes Tape Diagnostic Utility software for Windows, Linux and Solaris.
6 Viper 200 LTO Product Manual 2 Specifications This chapter provides technical specifications for the internal and external SCSI drives.
Specifications 7 82.6 mm (max) 21.80 ± 0.20 mm 9.90 ± 0.20 mm M3 X 5.0 4X Near side 4X Far side Side View 84.26 mm (max) 79.24 ± 0.20 mm 210.41 mm 219.00 mm max 48.9 ± 0.20 mm 4X M3 X 5.0 139.70 mm ± 0.20 mm 147.75 mm Bottom View 146.05 ± 0.25 mm 79.24 ± 0.20 mm 205 mm (max, without bezel) Figure 1. Internal HVD/LVD Viper drive—dimensions 48.9 ± 0.
8 Viper 200 LTO Product Manual Figure 2.
Specifications 9 Power specifications The external Viper 200 drives (STU62001LW and STU62001WD) come with a builtin 90-260VAC (47-63 Hz) automatic switching power supply. Maximum voltage and power specifications for the internal Viper 200 drives (STU42001LW, STU42001WD, and STU42001FC) are listed in the tables below. Specifications are the same for SCSI and Fibre Channel drives unless otherwise noted.
10 Viper 200 LTO Product Manual Drive performance specifications The following table lists the performance specifications for the Viper 200 drives, Ultra2 SCSI LVD, Ultra SCSI HVD and Fibre Channel.
Specifications 11 Environmental requirements The following table lists the environmental specifications for the SCSI and Fibre Channel Viper drive mechanisms.
12 Viper 200 LTO Product Manual Mean time between failures The mean time between failures (MTBF) for the internal drive is specified at 250,000 hours minimum. This specification includes all power-on and operational time but excludes maintenance periods. Operational time is assumed to be 100 percent of the power-on time. Operational time is the time the tape is loaded. The MTBF for the external drive power supply is 50,000 hours with the unit operated at full load and 25°C. Note.
Specifications 13 Cartridge memory Each Ultrium 1 cartridge has 4 Kbytes of nonvolatile memory: 3 Kbytes are used to store tape-directory and hardware specific information. 1 Kbyte is available for application and OEM use. The cartridge memory is powered, read, and written to via a radio-frequency link. Cartridge reliability Recommended cartridge use: After 5,000 load/unload cycles, replace the cartridge to insure data integrity.
14 Viper 200 LTO Product Manual Country Thailand India South Africa Israel Regulatory Organization TISI STQC BIS SABS SII Compliant to: CB Scheme CB Scheme * Member nations of the IECEE include Austria, Australia, Belgium, Canada, China (PR), Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Ireland, Israel, Italy, Japan, (South) Korea, Netherlands, Norway, Poland, Russian Federation, Singapore, Slovakia, Slovenia, South Africa, Spain, Switzerland, United Kingdom, USA, Yugoslavia.
Specifications 15 Hardware and software compatibility Compatible operating systems The Viper 200 is compatible with the following operating systems running on an Intel-based system. • Microsoft Windows NT (Windows 2000) • Novell NetWare 5.0 and 5.1 • Red Hat Linux 6.2 • SCO OSR 5.0.5, 5.0.6 • SCO Unixware 7.1 Compatible native backup software The Viper 200 is compatible with the native backup software provided with the following operating systems: Compaq Tru64 Microsoft NT 4.
16 Viper 200 LTO Product Manual 3 Installation Introduction This chapter explains how to install the Viper 200 internal and external drives. It includes the following sections • Unpacking and inspection: contains general information that you should read before installation. • Guidelines and cautions: guidelines and cautions for handling and installing internal tape drives. • Installing an internal HVD/LVD Viper drive: describes installing the internal drive in a 5.25-inch drive bay.
Installation 17 • Before you remove the drive from the antistatic bag, touch a metal or grounded surface to discharge any static electricity buildup from your body. • Always lay the drive either on top of the antistatic bag or place it inside of the bag to reduce the chance of damage from static discharge. • Install HVD drives only in an HVD environment, Fibre Channel drives only in a Fibre Channel environment, and LVD drives only in an LVD environment.
18 Viper 200 LTO Product Manual Jumper Settings: Drive-configuration jumper pins Default settings: Pins: Function: 1-2 SCSI ID bit 0 3-4 SCSI ID bit 1 5-6 SCSI ID bit 2 7-8 SCSI ID bit 3 9-10 Reserved 11-12 Termination Power SCSI ID=0 SCSI ID=8 SCSI ID=1 SCSI ID=9 SCSI ID=2 SCSI ID=10 SCSI ID=3 SCSI ID=11 SCSI ID=4 SCSI ID=12 SCSI ID=5 SCSI ID=13 SCSI ID=6 SCSI ID=14 SCSI ID=7 SCSI ID=15 Term. power Figure 3.
Installation 19 YES YES NO NO Figure 4. Acceptable mounting orientations for the internal Viper 200 Mount the drive in a 5.25-inch, full-height drive bay and secure it using two M3.0 X 5 metric screws on each side of the drive. Do not use screws longer than 5 mm or you may damage the drive. Figure 1 on page 7 shows the locations of the mountingscrew holes on the side and bottom of the drive, respectively. 3.
20 Viper 200 LTO Product Manual Caution: An HVD drive should never be plugged into a SCSI bus that contains LVD or SE devices. The daisy chain of SCSI devices must be terminated at both ends with terminators of the proper impedance, in order to operate correctly. Intermediate SCSI devices shall not be terminated. Internal Viper drives do not have onboard termination circuits.
Installation 21 Install an HVD drive only in an HVD environment and an LVD drive only in an LVD environment. Do not mix HVD and LVD devices. Look at the label above the drive’s SCSI connector to determine if the drive is an HVD or an LVD model: HVD label: LVD label: FC label: Fibre Channel Caution. Plugging an HVD drive into an LVD bus or vice versa will make the entire bus non-functional and may permanently damage the drive or other SCSI devices on the bus.
22 Viper 200 LTO Product Manual 13 Lib TXD-P output from drive 14 GND 15 Lib TXD-N output from drive 16 GND Connecting a power cable Attach a four-pin power cable to the power connector on the back of the drive. Figure 5 on page 20 shows the location of the power connector. The recommended 4-pin power connector for the internal Viper 200 is an AMP 148024-0 housing with AMP 60617-1 pins or equivalent.
Installation 23 Installing an internal Fibre Channel Viper drive This section describes the steps necessary to install an internal Viper 200 with a Fibre Channel LC Optical (FC) interface. For instructions on installing a drive with an Ultra2 SCSI LVD or Ultra SCSI HVD interface, see page 17. For instructions on installing an external HVD or LVD drive, see page 27. 1.
24 Viper 200 LTO Product Manual You can select the hard ID used by the drive by placing jumpers on the appropriate assigned loop identifier jumper pins. The seven sets of jumpers represent seven binary digits, with the lowest binary weight (2^0) on the left (pins 13-14) and the highest binary weight (2^6) on the right (pins 1-2). If a jumper is placed on a set of pins (ON), the bit is set as a “1.” If no jumper is on a set of pins, the bit is set as “0.
Installation 25 4. Connectors and cables Viper 200 drives (STU42001FC) have Fibre Channel LC Optical interfaces. They can be connected to either a hub or a switch. Each drive contains two FC ports, which operate independently. In systems supporting failover, this permits hosts to maintain a connection with the drive if one connection fails. Connecting the Fibre Channel interface cable Viper 200 FC drives are 100-M5-SN-I compliant and use LC style connectors. Either 50 or 62.
26 Viper 200 LTO Product Manual Serial Interface connector pin numbers 17 15 13 11 9 7 B A 18 16 14 12 10 8 5 6 3 4 1 2 Pin Numbers (Pin 17 removed to prevent connector from being attached incorrectly) Figure 11. Rear view of the Viper 200 FC internal drive showing fibre channel optical connectors Pin and signal descriptions for the Serial Interface connector are shown in the table below. These pins are on 2-mm centers. Pin 1 is used by the drive to detect the presence of a tape library.
Installation 27 Installing an external Viper drive The external Viper 200 drives (STU62001LW and STU62001WD) are compact subsystems that connect to the host computer through an external SCSI port. Installing an external drive involves the three simple steps shown below: 1. Configuring an external drive Setting the SCSI ID Make sure that the drive is turned off. Then set the SCSI ID for the drive using the push-button switch on the back of the external drive, as shown in Figure 12.
28 Viper 200 LTO Product Manual SCSI termination If the Viper drive is the last device or the only device in a SCSI chain, you must install a terminating plug on the unused SCSI connector. See Figure 13 below for two SCSI termination examples. You can purchase appropriate terminating plugs on the Internet at http://buytape.seagate.com. Note. Termination power is enabled as a default for the external Viper 200 drive.
Operation and maintenance 29 4 Operation and maintenance This section describes important operational procedures for the Viper 200 drive. It covers the following topics: • Understanding the front panel display • How to use LTO cartridges • Cleaning the tape drive • "Parking" the drive for shipping, resetting the drive, and emergency cartridge removal Front panel display Multiple front panels are available for the Viper 200.
30 Viper 200 LTO Product Manual remains on (not blinking), along with the Status light. During normal operation, the Power light remains on (not blinking). • Status LED (amber) – If the Status LED stays on continuously, the drive needs to be cleaned. Other changes in drive or cartridge status are indicated by various blinking patterns, which are described in the table below. • Error LED (orange) – The Error light blinks if the drive experienced a nonrecoverable error.
Operation and maintenance 31 Using LTO cartridges Loading a cartridge To load an Ultrium cartridge into the Viper 200, place the cartridge in the slot and then push it to the detent. Then: • Continue to push the cartridge the rest of the way into the drive; or, • Press the load/unload button on the front of the drive to seat the cartridge; or, • Use a library or host command to finish loading the tape.
32 Viper 200 LTO Product Manual Cartridge care and maintenance To protect the data on your Ultrium data cartridges, observe the following precautions: • Always remove the cartridge from the drive when not in use and store it in its protective case. • Do not expose cartridges to dirt, dust or moisture. • Do not touch the tape media within a cartridge. • Do not use data cartridges outside the specified operating conditions: 10o C to 45o C, 10% to 80% relative humidity.
Operation and maintenance 33 Drive maintenance The Ultrium drive requires little or no maintenance. However, on rare occasions, the drive mechanism may need to be cleaned. Cleaning the tape drive Excessive tape debris or other material may accumulate on the tape heads if the drive is used with non-approved media or operated in a hot, dusty environment. In this case, the drive may experience excessive errors while reading or writing, and the amber Status LED will remain on continuously during operation.
34 Viper 200 LTO Product Manual Parking the drive for shipping Seagate recommends that you "park" the Viper 200 before shipping it or placing it in an environment where it may be subject to physical shock. Parking the drive moves the tape mechanism to the configuration that is resilient to shock. You can park the Viper 200 using the Load/Unload button on the front of the drive, or by running special software on your host system. In either case, the drive must be powered up in order to enter park mode.
Operation and maintenance 35 Emergency reset and emergency cartridge eject If the Viper 200 ever stops communicating with the host computer, use the following procedure to reset the drive and eject a cartridge (if necessary). Caution. When you perform an emergency cartridge eject, any data currently in the drive or host's buffers will not be written to the tape and the tape record may not be correctly terminated with an End of Data mark.
36 Viper 200 LTO Product Manual • Case 1: The cartridge is loaded and the leader pin is still in the cartridge (see Figure 16). Follow the procedure on page 32. • Case 2: The cartridge is loaded and seated, and the tape is threaded or partially threaded on the take-up hub. Follow the procedure on page 33. Figure 16.
Operation and maintenance 37 Figure 17. Diagram of Viper 200 showing worm gear 3. Continue turning the worm gear until the cartridge is sticking out of the unit approximately 17 mm (0.66”). Then carefully pull the cartridge out by hand. 4. After you have removed the cartridge, put the top cover back on the drive; then replace and tighten the screws. 5. Return the drive to Seagate. Caution. Do NOT use the drive after you have removed a cartridge. The drive must be returned to Seagate for servicing.
38 Viper 200 LTO Product Manual Case 2. Cartridge is loaded and seated and tape is threaded Follow these steps if the cartridge is loaded and seated, and the tape is entirely or partially threaded into the drive. You will need a small, flat-blade screwdriver and a 1.5-mm hex wrench. Figure 18 shows key components of the drive mechanism that are referred to in the text below. Note. Do not touch any part of the drive mechanism except for the components specified in the instructions.
Operation and maintenance 39 Figure 19. Diagram of Viper 200 showing lead screw (tape threaded on take-up reel) 2. Replace the drive cover to protect the gear and spooling assemblies. You do not need to replace all the screws. 3. Turn the drive upside down. 4. Insert the 1.5-mm hex wrench through the hole in the bottom plate shown in Figure 20. Turn the hex wrench clockwise slowly and smoothly to rewind the tape into the cartridge. This may take some time.
40 Viper 200 LTO Product Manual Caution. Be especially careful not to touch the tape head assembly. The MR elements in this assembly are highly susceptible to damage from static electricity. 8. Take up the slack tape again using the 1.5-mm hex wrench, as described in step 4 above. 9. Carefully push the grabber in toward the cartridge, as shown in Figure 21. Figure 21. Diagram of underside of Viper 200 showing tape grabber near cartridge 10.
Operation and maintenance 41 13. Continue turning the worm gear until the cartridge is sticking out of the unit approximately 17 mm (0.66”). Then carefully pull the cartridge out by hand. 14. After you have removed the cartridge, put the top cover back on the drive; then replace and tighten the screws. 15. Return the drive to Seagate. Caution. Note. Do NOT use the drive after you have removed a cartridge. The drive must be returned to Seagate for servicing.
42 Viper 200 LTO Product Manual 5 Theory of operation This section describes operational theories used in the Viper 200 drive. It covers the following topics: • Track Layout • Recording Method • Data Buffer • Data Integrity • Data Compression Track layout Figure 23 summarizes the layout of data on an LTO tape.
Theory of operations 43 A wrap is a track group recorded in the physical forward or physical reverse direction. The wraps are recorded in a serpentine fashion starting in data band 0. The tape contains 48 track groups, 24 written in the forward direction and 24 written in the reverse direction. Even-numbered wraps are recorded in the forward direction (BOT to EOT), and odd-numbered wraps are recorded in the reverse direction (EOT to BOT).
44 Viper 200 LTO Product Manual When data is read from tape and stored into memory, C1 ECC is checked. If the C1 ECC is good, then that codeword pair’s “Valid” bit is set. Otherwise, a pointer to the invalid Codeword Pair is passed to the C1 ECC correction engine. If it can correct the error, then the corrected bytes are written to memory, and the Valid bit is set. Otherwise, the Valid bit is left cleared.
Theory of operations 45 recording the information to tape. This increases the amount of data that can be stored on a finite medium and increases the overall storage efficiency of the system. With data compression, the redundant information in a data stream is identified and then represented by codewords or symbols, which allow the same data to be recorded in a fewer number of bits. These symbols or codewords point back to the original data string, using fewer characters to represent the strings.
46 Viper 200 LTO Product Manual attempt than the native (uncompressed) size, then the record is written in its native form. The intelligent data compression utilizes two compression schemes: • Scheme-1 is a LZ1 based compression scheme using a history buffer to achieve data compression. • Scheme-2 is a pass-through compression scheme designed to pass uncompressible data through with minimal expansion. There are three specific requirements for compliance with the LTO specification.
SCSI interface 47 6 Interfaces Parallel SCSI interface This section summarizes the SCSI message codes, status codes and commands used by the drive. Refer to chapter 3 for SCSI cabling and connection information. Please refer to the LTO Tape Drive SCSI / Fibre Channel Interface Manual (part number 100244301) for detailed developer information relative to SCSI implementation. Viper 200 drives feature a multi-mode LVD or HVD single-ended SCSI-2 interface.
48 Viper 200 LTO Product Manual • Single-ended drivers • Termination power supplied to cable (jumper option) • Hard reset • Synchronous data transfers • Parity implemented (switch option) Fibre Channel interface The Fibre Channel interface for the Viper 200 drive conforms with the ANSI/INCITS FCP-2, FC-PH, FC-PH-2, FC-PH-3, and FC-AL standards, as well as with the FCTAPE, FC-MI, FC-PLDA, and FC-FLA profiles. The drive has two independent 1.
SCSI interface 49 0Bh Set Capacity (proposed for SSC-2) 10h Write Filemarks 11h Space 12h Inquiry 13h Verify 15h Mode Select (6-byte version) 16h Reserve Unit (6-byte version) 17h Release Unit (6-byte version) 19h Erase 1Ah Mode Sense (6-byte version) 1Bh Load/Unload 1Ch Receive Diagnostic Results 1Dh Send Diagnostic 1Eh Prevent/Allow Medium Removal 2Bh Locate 34h Read Position 3Bh Write Data Buffer 3Ch Read Data Buffer 44h Report Density Support 4Ch Log Select 4Dh
50 Viper 200 LTO Product Manual Tape Alert flags The Viper 200 supports version 3.0 of the Tape Alert specification. The following flags are supported by the drive.
SCSI interface 51 Fibre Channel Interface The Fibre Channel Viper 200 supports 128 arbitrated loop physical addresses. Up to 126 hosts and targets and one switch can be attached to a single loop. Due to the speed of the Viper 200 drive, it is recommended that a maximum of two Vipers be connected on one arbitrated loop.
52 Viper 200 LTO Product Manual 7 Ultrium tape format This chapter summarizes the features and benefits of the LTO tape formats, and of the Ultrium tape cartridges. A typical Ultrium cartridge is shown in Figure 24. Top Rear Front Figure 24. Ultrium cartridge Overview of LTO tape formats Ultrium is one of two LTO tape formats. Like DLT tapes, LTO tapes are recorded using a linear serpentine recording technique.
Ultrium tape format 53 Higher recording density: The LTO specification allows higher recording densities than any existing linear tape products. Further increases in recording density are possible in the future because the LTO tape specification is optimized for magnetoresistive (MR) tape heads. Ultrium technology overview The Ultrium tape format is optimized to store as much data as possible.
54 Viper 200 LTO Product Manual Cartridge memory To maximize data access speed and efficiency, every LTO cartridge contains a Cartridge Memory (CM) chip, which communicates with the drive via a contactless radio-frequency link. The cartridge has 4 Kbytes of memory: 3 Kbytes are used to store tape directory and hardware specific information and 1 Kbyte is available for application and OEM use. The cartridge memory is powered, read, and written to via radio-frequency link (noncontact).
Customer support services 55 Customer support services 8 Seagate offers the most extensive line of disc and tape storage products in the industry and offers comprehensive service and support programs to ensure customer satisfaction. World-wide services: Worldwide web: {tc "Online Services"}A wide variety of technical support services are available on Seagate’s World Wide Web site, located at http://www.seagate.com.
56 Viper 200 LTO Product Manual Pre-sales support (US customers): "SeaFONE 1-800-626-6637{tc 1-800-SEAGATE"} Pre-sales tape support (International customers): 1-714-641-2500 Tape Purchases: US customers can purchase Seagate data cartridges, tape supplies, accessories and select Seagate tape drive products 24 hours daily on the Internet at http://buytape.seagate.com.
Customer support services 57 Support services in Europe For European customer support, dial the toll-free number for your specific country from the table below. The Seagate Technical Support FAX number for all European countries is 31-20-653-3513.
58 Viper 200 LTO Product Manual Singapore 800-1101-150 — +65-6488-7525 Taiwan — +886-2-2514-2237 +886-2-2715-2923 Thailand 001-800-11-0032165 — —
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