5486ExtStor.fm Draft Document for Review October 18, 2004414 IBM Eserver i5 and iSeries System Handbook IBM TotalStorage Enterprise Tape Drive 3590 IBM 3490EDifferent tape drives can be installed in different frames in the same 3494 library.The IBM TotalStorage 3494 Automated Tape Library supports up to 64 TCP/IPopen system hosts and the attachment of up to 128 3592 or 92 3590 opensystems tape drives. The 3494 supports heterogeneous attachment of multipleIBM and non-IBM hosts including IBM Eserver zSeries, S/390, IBM EserverpSeries, RS/6000, IBM Eserver i5, iSeries, Sun, HP, and Intel-compatibleservers running Microsoft Windows. Also available is the IBM TotalStorageEnterprise High Availability Tape Frames (HA1 Models). The HA1 Framesprovide a second tape cartridge accessory and library manager for high libraryavailability and performance.All this, in addition to remote console support, Simple Network ManagementProtocol (SNMP) reporting capabilities, multi-host attachment, and modulardesign, assist in making the 3494 flexible, easy to use, and well-suited forautomated tape library solutions.For additional information about the 3494 Enterprise Tape Library, see thefollowing Web site:http://www-1.ibm.com/servers/storage/tape/3494/index.htmlIBM 7206 Model VX2 80 GB External VXA-2 Tape DeviceThe IBM 7206 Model VX2 External TapeDrive is a VXA-2 Packet Drive that featurescapacity of 80 and 160 GB (native andcompressed) and six and 12 MB/sec transferrates (native and compressed). The VXAPacket Technology provides a digital solutionto the long-standing mechanical problem ofhead-to-tape alignment, a common problemwhich causes conventional tape storageproducts to trade off costly mechanicalcomplexity with data restore integrity.VXA Packet Tape Drives write and read data in individually addressed packets,accomplished by the heads sweeping the entire face of the tape rather than theconventional method of sequentially tracing every track embedded on the tape.During a read operation, discrete data packets are dynamically gathered andreassembled in the VXA buffer, resulting in dramatically higher data restoreintegrity with reduced cost. VXA Packet Technology eliminates the need for
