Dell PowerVault 110T SDLT320 User Manual - Page 34

Back to Contents Page Specifications: Dell™ PowerVault™ 110T SDLT 320 Tape Drive User's Guide • Product Specifications • Functional Specifications • Environmental Specifications • Recording Media Specifications NOTE: These specifications are provided by the manufacturer for information purposes only and do not constitute an extension of Dell's warranty to you. Dell's warranty is contained in the documentation for your system. Product Specifications Manufacturer Model Number Interface Type Manufactured for Dell by Quantum Corp. DELL PowerVault 110T SDLT 320 Tape Drive: SDLT Internal; SDLT External LVD, Ultra 2 SCSI running at 80 MB/sec Physical Dimensions Table 1 provides physical dimensions for the tape system. Table 1. Physical Dimensions Description Internal Version Height 82.55 mm (3.25 in) without front bezel; 85.73 mm (3.38 in) with front bezel. Width 146.05 mm (5.75 in) behind front bezel; 148.59 mm (5.85 in) with front bezel. Depth 203.20 mm (8.00 in) measured from back of front bezel; 212.73 mm (8.38 in) including front bezel. Weight 2.38 kg (5 lbs 4 oz) Shipping Weight* 3.77 kg (8 lbs 5 oz) * Weights depend on configuration. Note that for the shipping weight, the packaging may change. Note: Mounting hole pattern for the bottom and sides of the system is industry standard. Tabletop Version 164.46 mm (6.48 in) 174.75 mm (6.88 in) 320.04 mm (12.6 in) 6.27 kg (13 lbs 13 oz) 9.90 kg (21 lbs 13 oz) Storage Capacity The following provides native and compressed capacity ranges for the Super DLTtape I cartridge: l Native Storage Capacity = 160 GB l Compressed Storage Capacity = 320 GB (2:1 compression ratio) In accordance with industry practice, a typical compression ratio of 2:1 is quoted. Actual compression ratios achieved depend on the redundancy of data files being recorded. Data Integrity SDLT data transfer errors are extremely rare; the following table shows the data integrity for the overall tape system. Table 2. Data Transfer Error Rates Error Type Error Rates Recoverable READ Detected, Unrecoverable READ Undetected READ Rewrite errors Frequency < 1 error in 10E6 bits read < 1 error in 10E17 bits read < 1 error in 10E27 bits read < 5 per 10E6 bits written Reliability (MTBF) Mean time between failures (MTBF) for the tape system is 250,000 hours. Head life is a minimum of 30,000 tape motion hours, and an average of 50,000 tape motion hours. Media durability is 1,000,000 passes over any single part of the tape. Note that this specification does not warrant that predicted MTBF is representative of any particular unit installed for customer use. Actual figures vary from unit to unit. Load and Unload Cycles Load and unload cycles are rated at 15,000 for the cartridge itself. The following table shows the number of load and unload cycles and tape insertions the drive itself can perform before it needs to be replaced. Load/unload cycles 100,000 Tape insertions* 100,000 * An insertion is when a tape is inserted into the receiver, loaded to BOT, and unloaded.