81. Reviews OnLine: Hardware Review Of Aiwa BOLT External Tape Drive TD-P10 Introduction Flossing, rotating your tires, calling your Aunt Matilda. These are all things you should be doing on a regular basis along with the PC http://www.reviewsonline.com/AIWABOLT.HTM

Aiwa BOLT External tape drive TD-P10 by Stephen R.Jones (March 1999) Introduction Flossing, rotating your tires, calling your Aunt Matilda. These are all things you should be doing on a regular basis along with the PC equivalent, backing up your valuable data. Lately, though, typical multi-gigabyte hard disk sizes have grown to the point that affordable tape drives neither offer the capacity or speed to make regular backups a part of our routine. However, your level of hard disk hygiene may be about to improve dramatically, as the next generation of tape drives arrives on your desktop. We'll examine the Aiwa Bolt TD-P10, an affordable, high speed tape backup solution that just might make this necessary chore easy enough to become a habit. Darn, there go all your good excuses. Installation The software provided on CD was easy to install and required only about 5 MB of disk space. You should allow for at least twice that much space since on-disk catalog files can take 3 megabytes or more per backup job. These optional files can be compacted or deleted altogether, however, at the cost of extra backup or restore time. Hardware The attractive, gun-metal gray package felt quite durable. The rubber feet are ample sized and much more firmly attached than other external drives (such as a Zip). The drive can be placed flat or upright but the uniform shape of the rubber feet does not offer any clues to which vertical position is the only correct one. The unit includes lights for Power, Access, and Status.

82. Dantz: Drive Type Descriptions Each cartridge can hold up to 50 GB (more using builtin hardware compression). A tape library consists of a tape drive and machinery that automatically http://www.dantz.com/en/support/device_desc.dtml

Deutsch English Japanese Storage Device Compatibility Updates General FAQ Forums ... Support AIT (Advanced Intelligent Tape) AIT is appropriate for environments demanding high capacity and high performance. Each cartridge can hold up to 50 GB (more using built-in hardware compression). AIT drives can transfer data up to 360 MB/minute. Tape Libraries CD-R and CD-RW (Compact Disc Recordable and Rewritable) CD-R and CD-RW drives store data on special compact discs and provide a practical and cost-effective backup solution for modest requirements. CD-R and CD-RW drives store 600 MB (more with software compression) on each disc. The speed of CD-R and CD-RW drives vary and can range from 5 to 50 MB/minute. DAT (Digital Audio Tape) DAT spans the gap between entry-level tape drives such as Travan and high-end products such as DLT and AIT. Each compact DAT cartridge, containing 4mm wide tape, holds about 2 GB (DDS-1), 4 GB (DDS-2), 12 GB (DDS-3), 20 GB (DDS-4), or more depending on how easily your files are compressed. Speeds can range from 6MB/minute to 150 MB/minute. Retrospect supports all current DAT drives. VXA VXA drives provide a new tape technology that is reliable and relatively inexpensive for small to medium-sized environments. VXA formats data in packets, operates at variable speed and can read data multiple times in one single tape pass. With capacities ranging from 20 to 66 GB and speeds up to 360 MB/minute, the VXA-1 drive gives you a lot of flexibility at a very cost effective price.

83. PCQuest : Hardware : TAPE DRIVE: Quantum SDLT 600 Tape Drive This drive gives 300 GB of backup capacity and is really fast in both data backup and restoration. http://www.pcquest.com/content/hardware/2004/104050801.asp

id=57167 Monday, September 26, 2005 Web pcquest.com CIOL Network sites CIOL Network Sites CIOL Dataquest Living Digital DQ Channels CIOL Shop Cybermedia Dice the DQweek GlobalOutsourcing BioSpectrum Search by Issue CD Search Sitemap Advanced Search ... Hardware TAPE DRIVE: Quantum SDLT 600 Tape Drive This drive gives 300 GB of backup capacity and is really fast in both data backup and restoration Anoop Mangla Saturday, May 08, 2004 This tape drive offers 300 GB (uncompressed) of backup capacity on a single SDLT-II tape. However the formatted capacity of the tape is only 278 GB. It also offers high data backup speeds. As per its specs, it can backup data with a sustained transfer rate of 36MB per sec, meaning you can backup a single tape to its full capacity in slightly more than two hours. For backward compatibility the drive can also read (but not write to) SDLT-I and DLT VS-1 tapes. The media durability of SDLT-II is 1,000,000 head passes and an archival life of 30 years. The unit that came to us for testing had a SCSI interface, but fiber channel interface is also available. We tested the drive on an IBM eServer x225 with dual 2.4 GHz Xeon, 512 MB RAM, IBM Ultra 320 SCSI 10K RPM drive and Win 2000 SP4. We used CA’s Brightstor Arcserve backup software and tested the drive for backup transfer rate for a data set taken from our production file server. We measured the rate of restoring this data to the hard disk, and did a stream test in which we backed up a single 1 GB file to the tape. We compared the drive with HP and IBM LTO drives reviewed in our November 2003 issue (page 90). Both drives had a tape capacity of 200 GB and sustained transfer rates of 30MB per sec and 35 MB per sec for HP and IBM, respectively.

84. What Is Tape Drive? - A Word Definition From The Webopedia Computer Dictionary This page describes the term tape drive and lists other pages on the Web where service, reseller and hardware information on thousands of IT solutions. http://www.webopedia.com/TERM/T/tape_drive.html

You are in the: Small Business Computing Channel View Sites + ECommerce-Guide Small Business Computing ... »Close Enter a word for a definition... ...or choose a computer category. choose one... All Categories Communications Computer Industry Companies Computer Science Data Graphics Hardware Internet and Online Services Mobile Computing Multimedia Networks Open Source Operating Systems Programming Software Standards Types of Computers Wireless Computing World Wide Web Home Term of the Day New Terms Pronunciation ... Be a Commerce Partner tape drive Last modified: Friday, June 21, 2002 A device , like a tape recorder, that reads data from and writes it onto a tape . Tape drives have data capacities of anywhere from a few hundred kilobytes to several gigabytes . Their transfer speeds also vary considerably. Fast tape drives can transfer as much as 20MB ( megabytes ) per second. The disadvantage of tape drives is that they are sequential-access devices, which means that to read any particular block of data, you need to read all the preceding blocks. This makes them much too slow for general-purpose storage operations. However, they are the least expensive

85. UltraBac Tape Drive Compatibility tape drives that are compatible with UltraBac Software. These links to manufacturers of some popular tape drives is provided for your convenience. http://www.ultrabac.com/techsupport/85hardware-compatibility/

Home Products Tech Support Download Resellers News/Events About Us ... Site Map SEARCH V8.x Knowledge Base Web Site Both Search Earlier Knowledge Bases Technical Support Product History Knowledge Base ... Beta Download For updates on product information, subscribe to our email newsletter. DOWNLOAD ULTRABAC NOW! TAPE DRIVE MANUFACTURERS These links to manufacturers of some popular tape drives is provided for your convenience. It is not an inclusive list of drives supported by UltraBac. UltraBac is compatible with all tape drive devices. If you have any problems running UltraBac with your tape drive, contact tech support Manufacturers' sites will open in a new window. Compatible Devices (Opens in New Window) UltraBac Software 15015 Main Street Bellevue WA 98007 Fax 425-644-8222 info@ultrabac.com UltraBac Software

86. Aiwa TD-UM8000 USB Tape Drive Review Aiwa TDUM8000 USB tape Drive, by Donovan Watts (9/24/1999) It is the loudest piece of hardware in my office, so I usually keep it turned off http://www.lowendmac.com/usb/aiwa.shtml

Search LEM Home Mac Specs Articles Deals ... RSS Feed Mac of the Day PowerBook 100 List of the Day Mac Digital Video Channels Power Macs iMac Channel iBook/PowerBook MacInSchool Computer Profiles iMac Power Mac PowerBook/iBook Performas ... LEMchat (uses AIM) Message Boards Online Tech Journal Consumer advice, reviews guides, deals Software Apple History Best of the Web Best of the Mac Web surveys Miscellaneous Links Best Used Mac Buys Used Mac Dealers Video Cards Mac OS X ... Support LEM Affiliates The Apple Store .mac iTunes Music Store ClubMac ... CablesToGo Our advertising is handled by BackBeat Media . For detailed price quotes and advertising information, please contact eval(unescape('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%61%20%68%72%65%66%3d%6d%61%69%6c%74%6f%3a%6c%65%6d%40%62%61%63%6b%62%65%61%74%6d%65%64%69%61%2e%63%6f%6d%3e%47%72%65%67%20%53%6e%79%64%65%72%3c%2f%61%3e%27%29')) Greg Snyder at BackBeat Media (512-441-1852). This number is for advertising only. Aiwa TD-UM8000 USB Tape Drive Donovan Watts For years I've used and wrestled with backup units of all varieties: internal tape drives, parallel port tape backups, SCSI tape drives, and good old backing up to floppy. Having climbed the Mac chain over the years, I consider myself a newcomer when it comes to USB but ever since I got my

87. Computing Canada: Flexible Tape System Doesn't Bind Users - Hardware; IBM TotalS system doesn t bind users hardware; IBM TotalStorage Enterprise tape Drive The tape drive is said to provide better capacity, speed and price than http://www.findarticles.com/p/articles/mi_m0CGC/is_19_29/ai_108992898

@import url(/css/us/style1.css); @import url(/css/us/searchResult1.css); @import url(/css/us/articles.css); @import url(/css/us/artHome1.css); Home Advanced Search IN free articles only all articles this publication Automotive Sports FindArticles Computing Canada Oct 3, 2003 Content provided in partnership with 10,000,000 articles Not found on any other search engine. Related Searches Tape drives / Product introduction Computer industry / Product introduction Featured Titles for AI Magazine Advanced Battery Technology America's Network BT Catalyst ... View all titles in this topic Hot New Articles by Topic Automotive Sports Top Articles Ever by Topic Automotive Sports Flexible tape system doesn't bind users - Hardware; IBM TotalStorage Enterprise Tape Drive 3592 - Brief Article Computing Canada Oct 3, 2003 Save a personal copy of this article and quickly find it again with Furl.net. It's free! Save it. ARMONK, NY IBM has launched its next generation enterprise tape platform, the IBM TotalStorage Enterprise Tape Drive 3592. The tape drive is said to provide better capacity, speed and price than comparable StorageTek tape devices, according to IBM.

88. Index Quantum SDLT220 tape Drive 110/200GB tape Drive Our Price $1295.00 More Info You Save $1150.00 200/400GB Internal SCSI LVD 68pin LTO-2 tape drive http://www.gdcinc.com/

89. Data Backup: Tape Vs. Disk - January 2001 - Article On STORAGE Search .com then your old tape drive may not even be supported on the new hardware which Note The tape drive takes 20 times longer to backup and retrieve data http://www.storagesearch.com/datazoneart2.html

storage manufacturers articles news Data Backup: Tape vs. Disk January 2001 article by:- Steven L. Kaczeus - DataZone See also:- article:- Serial Attached SCSI - Delivering Flexibility to the Data Center Squeak! - The Top 10 Storage Software Companies article:- Using Remote Disk and Tape for BC/DR article:- Storage Virtualization ... STORAGEsearch.com Strike match... Light fire wire... Then run like hell! Megabyte thought this looked a lot easier when Clint Eastwood did it in the movies. D emand for data storage capacity has grown at an unbelievable annual compound growth rate of 30% over the past decade due to increased complexity in operating systems, improved sophistication in user applications, and explosive growth in the Internet. This growth has brought about an enormous volume of data exposed to loss and users need to recognize that data loss is inevitable. The concern for data loss is not if it will occur but rather when will it occur and how serious or disruptive it will be. The Safeware Insurance Agency who monitors yearly personal computer hardware losses reported $1.9 billion worth of damages in the year 1999 (see Loss Statistics Chart below), which doesn't even include data losses caused by viruses. Annual PC Hardware Loss Statistics Chart in 1999 NOTEBOOKS DESKTOPS Cause of Loss Units $ Amount Units $ Amount Accidents Theft Power Surge Lightning Transit Water/Flood Other Total Total Annual PC Hardware Loss in Year 1999 (portables and desktops) = $1,911,331,000

90. LinuxQuestions.org - Sata And Ide Tape Drives - Where Linux Users Come For Help So far everthing is working fine except for the tape drive. So I have tried modprobe type command and it made my tape drive my boot drive and that is not http://www.linuxquestions.org/questions/showthread.php?s=&threadid=351371

91. Review: HP SureStore DAT40e Tape Drive The SureStore DAT40e tape drive is an external unit with a pair of SCSI3 Warning Software compression was requested on a hardware compressing device. http://pcbuyersguide.com/hardware/storage/HP-SureStoreDAT40e.html

HP SureStore DAT40e external DDS-4 Tape Drive By Graeme Bennett (Updated July 15, 2000) Product: DAT-40e From: Hewlett-Packard Canada The SureStore DAT40e tape drive is an external unit with a pair of SCSI-3 (LVD) connectors on the back. Our test unit came with a hefty 28-inch cable, terminating resistor, a pair of tapes and a cleaning cartridge, Colorado Backup II software for NT and Windows 9x, a suite of software utilities, plus documentation. We elected to use the LVD cables already installed in our test PC a Legend QDI dual-CPU BrillianX IV with an onboard Adaptec 7880 SCSI controller and Intel Ethernet. The tapes this drive is capable of writing can hold up to 40 Gigabytes of data, using the drive's hardware-assisted compression algorithms. HP claims that the drive delivers "one button disaster recovery." It is both ironic and poignant that, during our attempt to connect and configure the drive, we somehow managed to completely trash Windows, necessitating a complete reinstall to a different directory along with the manual reconfiguration of all our applications and device drivers. If only this made-to-order disaster had occurred

92. Linuxmafia.com Knowledgebase - Hardware Incompatibility List Collaborative list of hardware that does not work with SCSI tape Drive Termination - Do I need to terminate a SCSI tape drive I http://linuxmafia.com/kb/Hardware

Linuxmafia.com Knowledgebase Top : Hardware AIC-7xxx - Red Hat problems on some Adaptec AIC-7xxx chipsets, and workaround ATI Radeon 9700 Pro - Correct XFree86 driver for the ATI Radeon 9700 Pro ATX Power Switch Software Shutdown - Driver software for ATX motherboard chipsets' soft power switches BIOS Flashing - How to reflash your BIOS or other electrically programmable ROMs using only open-source Linux tools BIOS Passwords - List of BIOS manufacturers' built-in service passwords in various PC BIOSes, and other workarounds for breaking into CMOS setup programs BIOS Replacements - Sources of replacement motherboard BIOS code Burn-in - Tips for stress-testing / burn-in of all hardware on a Linux computer using the Cerberus Test Control System CD-ROM Access Causes Reboots - What does it mean if my system spontaneously reboots when I access the CD-ROM? CD-ROM Not Valid Block Device - What does it mean when it says '/dev/cdrom not a valid block device'? Cerberus FAQ - FAQ for the Cerberus Test Control System, an open-source hardware stress-testing suite Detecting Hardware - Detecting hardware using lspci, dmesg, and /proc entries

93. Physics/Astronomy Network Of Intel Computers: Cluster Hardware We have a DLT7000 tape drive. If someone needs to read or write data from DLT tape, This tape drive reads and writes DLT tapes in DLT7000, DLT4000, http://panic.millennium.berkeley.edu/hardware/

Introduction Policies News About Account Setup ... Future Plans Cluster Hardware Server The cluster server an a Dell PowerEdge 2600 server with one 2.4GHz Pentium 4 processor, 512MB of RAM, and several disks attached to it. It acts the application and home directory file server, as well as NIS, print, and web server for the cluster. The host name is panic.berkeley.edu. You can login to it with ssh. Lab Computers The cluster currently has seventeen working PCs. You can login to them from rooms 375 and 426 in Birge Hall or with ssh. There are also several privately owned computers that are part of cluster but which are not meant for general logins. Below are the brief specifications of lab PCs: Host Name Type CPU Memory Disk Other Comments Dell Optiplex GX240 1.7GHz Pentium IV CDRW drive Dell Optiplex GX240 1.7GHz Pentium IV CDRW drive Dell Optiplex GX240 1.7GHz Pentium IV CDRW drive Dell Optiplex GX240 1.7GHz Pentium IV CDRW drive Dell Precision 410 500MHz Pentium III Dell Optiplex GX240 1.7GHz Pentium IV CDRW drive Dell Dimension D300 300MHz Pentium II Zip drive Dell Dimension D300 300MHz Pentium II Dell Dimension D300 300MHz Pentium II Laptop gateway, not available for logins.

94. How To Buy A Tape Backup Device Let s first consider the actual tape drive hardware itself. While there are many different drive manufacturers, you can narrow the field quickly by looking http://www.strom.com/pubwork/af94.html

How to buy a tape backup device By David Strom Click here to return to the previous page David Strom Port Washington, NY 11050 USA US TEL: 1 (516) 944-3407

95. How To Determine The Cause Of A Tape Alert (Hardware) Message That Is Reported I C, The tape drive has a hardware fault, The drive has a hardware fault that requires reset to C, A hardware failure of the tape drive is predicted. http://support.veritas.com/docs/230206

Document ID: http://support.veritas.com/docs/230206 E-Mail this document to a colleague How to determine the cause of a Tape Alert (Hardware) message that is reported in the Backup Exec job log Exact Error Message TapeAlert Details: A "tape alert" message is a critical, warning, or informational alert that occurs due to a tape drive or robotic library hardware event. These "tape alert" messages are stored on the tape drive or robotic library. Applications like VERITAS Backup Exec (tm) can query the tape device or robotic library for these "tape alert" messages and display the "tape alerts" to the user. In the case of Backup Exec, "tape alert" messages are reported in the Backup Exec job log. It is important to remember that while Backup Exec displays these "tape alerts," the alert occurs due to a tape drive or robotic library hardware event. Below is a list of Industry Standard Tape Alert Error Flags . The "tape alert" flags are designed for single tape drives and robotic libraries. Please refer to the hardware vendor for a thorough explanation of these error flags: Flag Number Flag Type Required Host Message Cause Read Warning W The tape drive is having problems reading data. No data has been lost, but there has been a reduction in the performance of the tape.

96. SUNBURST /Moscow/ * * Release 25 Four times better then the 5GB 8mm tape drive hardware AND SOFTWARE CONSIDERATIONS The 14-GB 8mm tape drive requires http://sunsite.cs.msu.su/vic/sun-rel.25e

********************************************************************** * S U N B U R S T /Moscow/ * * Release 25 * ********************************************************************** OCTOBER 4, 1994 PRODUCT ANNOUNCEMENT 14-GB 8MM TAPE DRIVE ANNOUNCEMENT BRIEF Sun Microsystems Computer Company (SMCC) introduces the new high performance high capacity 14-GB 8mm tape drive. It is available as an internal option for the SPARCserver(TM) 1000 and SPARCcenter(TM) 2000 systems, the 56-inch expansion rack and also in Sun's small, rugged Desktop Storage Pack for desktop workstations and servers. With a data transfer rate of 1 MB/sec. and a capacity of 14-GB per 160m tape at a typical 2:1 compression ratio, customers can backup their data twice as fast and backup nearly three times as much data versus the 5-GB 8mm tape drive, saving valuable space and time. The 14-GB 8-mm tape drive is based on the Exabyte 8505XL drive, which has the highest reliability of its kind. The 14-GB 8mm tape drive supports the new 160-meter extended length tapes, as well as the standard 112m tapes. The 14-GB 8mm tape drive is read/write compatible with the 8200 and 8500/8500c and 8505 formats, which include the formats used in Sun's 2.3-GB, 5-GB and 10-GB 8mm tape drives. The 14-GB 8mm tape drive has been fully qualified and tested by Sun engineers for optimum performance and reliability when used with Sun SPARCstation(TM) and SPARCserver systems. Sun has verified the 160,000 hour MTBF rating of this device, so customers can be assured they are getting the reliability they expect. This drive is certified by all regulatory agencies worldwide to meet the most demanding environmental specifications. The quality, reliability and performance of the 14-GB 8mm tape drive means customers can not find a better value for 8-mm backup storage anywhere else in the market. PRODUCT TRANSITION Because the new 14-GB 8mm tape drive is a better, faster, higher capacity and more reliable drive, Sun is transitioning all current configurations of the 10-GB 8mm tape drive to the 14-GB drive. AVAILABILITY Product will ship less than 30 days after announcement for all configurations of the 14GB 8mm tape drive. FEATURES AND BENEFITS - Features Benefits ======== ======== o 14 GB typical capacity on 160 m tape o 40% more capacity on each tape for longer unattended backups and cost savings o 1 MB/sec. typical transfer rate o Fast backups allow a more efficient use of the device o Supported on Solaris(R) 1.1.1 o Plug and play with most SPARC(R) and 2.x operating environments systems o Half-height form-factor o Internal drive fits perfectly in the slot above the CD-ROM drive in the SPARCserver 1000 and the lower bay of the top tray in the SPARCcenter 2000 o MTBF of 160,000 hours o Improved reliability, customers do not have to worry about the reliability of their backup system. Four times better then the 5-GB 8mm tape drive HARDWARE AND SOFTWARE CONSIDERATIONS The 14-GB 8mm tape drive requires Solaris(R) 1.1.1 or later. QUESTIONS AND ANSWERS - Q. On what systems is the 14-GB 8mm tape drive internal option supported? A. The 14-GB 8mm tape drive internal option is supported on the following systems: SPARCserver 1000 system cabinet (max. 1 drive) SPARCcenter 2000 system cabinet (max. 4 drives) 56-in. expansion rack (max. 4 drives per tray, max. 2 trays per cabinet) Q. On what systems is the 14-GB 8-mm tape Desktop Storage Pack supported? A. The 14-GB 8mm tape Desktop Storage Pack is supported on the following systems: SPARCstation ELC(TM) SPARCstation 20 SPARCstation IPC(TM) SPARCclassic(TM) SPARCstation IPX(TM) SPARCstation Voyager(TM) SPARCstation LX(TM) SPARCsystem 630 SPARCstation 2 SPARCsystem 670 SPARCstation 5 SPARCsystem 690 SPARCstation 10 SPARCserver 1000 Q. Can a customer mix the new 14-GB 8mm tape drive in systems with 4-mm tape drives, 5-GB and 10-GB 8mm tape drives, CD-ROM drives and disk drives? A. Yes. There are no technical issues and since this device is available as an x-option and as an internal option, customers are free to mix them in system or expansion cabinets, and with desktop systems. However, for performance reasons, it is recommended that no more than 2 tape drives be attached to any one SCSI bus that is also supporting disk drives, or no more than 4 tape drives be attached to a single SCSI bus Q. Where do I buy 8-mm media, especially the new 160m tapes ? A. Computer grade 8-mm media is available from SunExpress and widely available from most retail computer products stores where other computer grade media is sold. Sun ships one tape with each Desktop Storage Pack Q. How expensive is 8-mm media? A. Computer grade 8-mm media cost roughly the same as computer grade 4-mm media. Sun recommends that only computer grade media be used in this drive to ensure optimal ongoing reliability. Never use standard off-the-shelf 8-mm video tape Q. How often do these drives require cleaning? A. Sun recommends the drive is cleaned once after every 25 hours of actual tape operation. Sun ships a cleaning kit with each 8-mm tape drive. It is recommended not to use the cleaning cartridge for more than 30 cleaning cycles Q. Does this drive support the new 160-m tape? A. Yes. The drive also supports 15-m, 54-m and 112-m data grade tapes Q. Is the drive supported in NetWorker for Solaris? A. Yes, NetWorker supports many Sun and Exabyte products, including the 14-GB 8mm tape drive (code EXB-8505XL) Q. Is Sun abandonning 4-mm? A. No, there is a market for 4-mm as well as 8-mm. 4-mm is still the backup device of choice for desktop systems, mainly due to its lower cost. 8-mm is ideal for server-based applications, especially with its higher transfer rate and larger capacity

97. Administrator's Guide However, this format uses the tape drive s hardware compression feature, and the actual capacity may be greater, depending on the effectiveness of http://www.unix.ualberta.ca/ADSM/admgde/a45eaa78.htm

Defining and Updating Device Classes for Sequential Media Task Required Privilege Class Define device classes System or unrestricted storage You can define multiple device classes for each device type. For example, you may need to specify different attributes for two different storage pools that use the same type of tape drive. Variations may be required that are not specific to the device, but rather to how you want to use the device (for example, mount retention or mount limit). CARTRIDGE DLT DTF GENERICTAPE QIC OPTICAL WORM See Chapter 7. "Defining Drives and Libraries" The following sections explain the device classes for each supported device type. Defining and Updating Device Classes for Tape Devices To use tape devices, you must define a device class by issuing a DEFINE DEVCLASS command with the DEVTYPE parameter. Device ADSM Device Type Digital linear tape DLT Digital tape format DTF Quarter-inch QIC IBM 3570 IBM 3590 IBM 34xx CARTRIDGE AIX-supported tape devices GENERICTAPE MOUNTLIMIT MOUNTWAIT MOUNTRETENTION PREFIX FORMAT ESTCAPACITY LIBRARY You can update the device class by issuing the UPDATE DEVCLASS command.

98. Secrets Of OpenVMS® File I/O Consists of the tape controller (firmware) and the tape drive (hardware). tape drive that holds an 8mm tape. Can store 2.3 gigabytes (billion bytes) of http://www.ttinet.com/tti/secrets_file_io_001.html

Secrets of OpenVMS File I/O Previous page... Contents Chapter 3 VMS BACKUP I/O CONSIDERATIONS 3.1 Data-Block Layout VMS BACKUP generates two types of specially formatted data-blocks. The first type contains pure-data and consists of: a data-block sequence number the data that you requested be backed up a CRC for readback error DETECTION The second type of data-block contains redundancy group data. These data blocks are used for readback error CORRECTION. 3.2 The Effects of Block Size The size of each data-block is determined by the /BLOCK_SIZE qualifier. The use of large blocks can greatly speed up backup operations and allow more data to be put onto a single reel of tape. However, when using low-density tape devices, care must be taken. Increasing the block size speeds up data written to tape and increases disk performance because a larger block of data can be read from disk. VMS BACKUP will use from three to five memory buffers to do its work. Each buffer contains one data-block. A 9-track reel of tape has only 10 feet of writable surface past the end-of-tape reflector. Therefore, when BACKUP detects the EOT reflector, it must write all remaining buffers to tape within that 10 feet. If a /BLOCK_SIZE=40960 is used with a low-density tape device (1600 BPI), 25 inches of tape are consumed each time a data-block is written to tape (40960/1600 = 25). If five buffers are being used by BACKUP, over 10 feet of tape will be consumed when the EOT reflector is encountered. This could cause the tape to spin off the end of the reel. If when writing one of the blocks, BACKUP gets a tape error, it will try to rewrite the block to tape. If the tape is already positioned past the EOT reflector, the tape may spin off the end of the reel trying to complete the write operation.

99. Windows Marketplace: Hardware HP StorageWorks DLT VS 40/80 tape drive - DLT - SCSI by Compaq. The DLT VS 40/80 GB tape drive is positioned as an upgrade drive for current DLT 20/40 http://www.windowsmarketplace.com/results.aspx?bCatID=442&av=14-153&page=11

100. Windows Marketplace: Hardware The IBM TotalStorage 3580 model L3H tape Drive is an external drive The 3580 tape Drive provides an excellent migration path from digital linear tape http://www.windowsmarketplace.com/results.aspx?bCatID=442&av=14-299&page=12

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