User manual TANDBERG SDLT220-320 INTEGRATION

[. . . ] TANDBERG Super DLT TM Design & Intergration Guide Revision 1 June 2002 - 432588-01 SDLT 220 and SDLT 320 Design & Integration Guide Copyright Copyright © 2002 by Tandberg Data. Document Origination: Oslo, Norway. Trademarks Quantum, the Quantum logo, DLTtape, the DLTtape logo, Super DLTtape and the Super DLTtape logo are trademarks of Quantum Corporation registered in the U. S. A. Laser Guided Magnetic Recording (LGMR) and Pivoting Optical Servo (POS) are trademarks of Quantum Corporation. Other company and product names used in this document are trademarks, registered trademarks, or service marks of their respective owners. Legal Disclaimers The information contained in this document is the exclusive property of Tandberg Data. [. . . ] This bit is valid only in the following context: After attempting a cleaning application. Until the next cleaning tape is inserted. Until the power is cycled. CHAPTER 2: General Drive Specifications How TapeAlert Returns Cleaning Status An EEPROM parameter named EnaCleanTA enables TapeAlert reporting of Cleaning Status. The General Status Packet contains one flag that conveys cleaning information for the drive; it is: · Clean Now The Clean Now flag will be set on: SDLT HWE(Hard Write Error)/HRE(Hard Read Error) that are not servo related. This flag will not be set unless 100 hours of tape motion has occurred since the last cleaning. Corrective action for this flag is a successful cleaning or a power cycle. Library/Loader Cleaning Error Reporting The EEPROM parameter EnaCleanTA is used to enable the library/loader TapeAlert reporting of cleaning status. The EEPROM parameter EnaCleanLib is used otherwise. SCSI Cleaning Error Reporting For HWE(Hard Write Error)/HRE(Hard Read Error) that are not related to servo problems, the Cleaning Requested ASC/ASCQ (00/17) is reported using the same criteria as setting the TapeAlert Clean Now flag. The Cleaning Requested ASC/ASCQ replaces the 0C/00 for HWE or the 11/00 for HRE. The Cleaning Requested ASC/ASCQ is only reported if the EEPROM parameter EnaCleanSense is set to 1. CHAPTER 2: General Drive Specifications 2. 9. 3 Front Panel Cleaning Light The Cleaning Required (yellow) LED on the front panel indicates to the operator that cleaning is needed. This feature is enabled by the EEPROM parameter EnaCleanLight. The location of the Cleaning Required LED (and other front panel LEDs) is shown in Figure 2-7. Figure 2-7. Front Panel LEDs If EnaCleanLight is enabled, the yellow LED illuminates steadily for these conditions: · When a HWE(Hard Write Error)/HRE(Hard Read Error) is encountered, and more than 100 hours have passed since the last cleaning. Once illuminated, the yellow LED stays lit until one of the following occurs: 1) drive is cleaned successfully, or 2) the drive is reset due to a firmware failure or firmware update, or 3) power is cycled off and on. CHAPTER 3 Electrical Specifications 3. 1 Current and Power Requirements Table 3-1 on page 3-2 lists the current and power requirements for both versions of the tape system (internal and tabletop). The highest current (and power) is drawn during the native write modes and backward-read compatibility (BRC) read modes, so they are outlined in Table 3-1. Standby is measured with the tape loaded and tensioned or untensioned, and Idle is measured with power on with no tape loaded. (The power drawn in these two modes is similar enough that they are listed together. ) Power-up current surges are less than those encountered during motor accelerations, and so are not listed separately. NOTE: In Table 3-1, the current and DC power values are relevant to the internal drive, while the AC power values are relevant to the tabletop drive. CHAPTER 3: Electrical Specifications Table 3-1. Current and Power Specifications 12 V Current (A) MaxPk1 MaxRms2 Typ3 Typ3 DC Power (W) Max4 Typ5 AC Power (W) Max6 Typ7 5 V Current (A) MaxPk1 MaxRms2 Mode Standby / Idle Media Loading / Unloading 220/320 Write­ Motor Start8 220/320 Write­ Streaming Max for SDLT Modes9 BRC Read­ Motor Start8 BRC Read­ Streaming Max for BRC Modes 9 3. 2 3. 8 6. 1 3. 0 3. 1 3. 1 2. 9 2. 9 3. 0 0. 6 4. 8 4. 8 0. 5 1. 0 1. 0 0. 4 0. 7 0. 7 20 25 25 19 24 24 34 38 33 29 33 30 6. 3 4. 3 4. 3 3. 8 2. 1 0. 7 1. 0 0. 7 28 28 27 42 42 38 3. 9 3. 0 2. 8 2. 3 0. 7 0. 6 23 22 38 32 5. 2 3. 3 3. 3 3. 1 1. 8 0. 7 0. 7 0. 6 24 24 22 41 41 33 1. The Max-Peak value represents short current spikes drawn for durations of < 50us. On the 12V supply, the peaks correspond to the pulse width modulated switching of the motors. These values are calculated from the average of Peak-ripple-current + 2 sigma, measured at +5% DC voltage. The Max-Rms value is the average of the maximum RMS current drawn during this operating mode. These values are calculated from the average of RMS current + 3 sigma, measured at nominal DC voltage. The typical current is calculated from the average of all RMS current drawn during this operating mode, measured at nominal DC voltage. [. . . ] This force needs to be applied either: 1) directly in the horizontal and vertical center of the cartridge, or 2) symmetrically around the center of the cartridge. Do not press unevenly (or asymmetrically) on the cartridge, because it can cause premature wear to internal mechanical components. Insertion Velocity The insertion velocity must be in the range: 1. 5 inch/sec velocity < 0. CHAPTER 8: Insertion and Extraction Guidelines Hold Time for Loading (Dwell Time) When loading the cartridge into the drive, the maximum time that the picker should hold the cartridge is 250ms (0. 25 second). If a longer hold time is used, buckling and possible reel driver engagement problems could occur. Debounce Time The time allowed for the tape to stop moving (delay after insertion) is 50 ms. Initialization Time Initialization time is the maximum time for the SDLT drive to come ready after cartridge load; the time necessary for the drive to "ready itself" varies according to the characteristics and history of the media: · Blank Media (never been written or degaussed): Typically when a blank media is inserted into the SDLT drive, the drive completes its algorithms for cartridge load within 1 ½ minutes. Worst case time for a blank media could be up to 10 minutes. [. . . ]