Quoting Johnny Tam ([EMAIL PROTECTED]): > I need a tape drive that can handle up to 60-70GB of data. DDS-3 can > only handle 20/40G (Uncompressed/Compressed) Any suggestion?
As David Meyer says, the Sony AIT/AIT2 drives are pretty sweet. But there are others. Here's the comparison table from my http://linuxmafia.com/~rick/linux-info/tape-backup-types file -- which is probably (as usual) slightly out of date, despite best efforts: Media type Head type Nom. capacity Nom. speed Vendors 8mm helical scan 2GB/5GB 500kB/s Exabyte, Tandberg "AME" 8mm helical scan 20-60GB[1] 3 & 8MB[2] Exabyte DLT3XL linear serpentine 15GB 1.5MB/s DEC, Quantum DLT4 linear serpentine 20-40GB 3-5MB/s Quantum, others? SDLT linear serpentine 110GB 6MB/s Quantum, Tandberg DDS2 helical scan 2GB/4GB 500kB/s HP and others DDS3 helical scan 12GB 1.5MB/s HP and others DDS4 helical scan 20GB 3MB/s Various DLT7000 linear serpentine 35GB 5MB/s Quantum AIT helical scan 25-50GB 6MB/s[3] Sony LTO linear serpentine 100GB 15MB/s IBM, Seagate ADR2 linear serpentine 120GB 5MB/s OnStream [1] When used in M2-type drives. M1 does 2.5-20GB. [2] Thanks to Ray Kelly for furnishing AME speed figures. [3] That's with AIT2 drives. AIT3 drives do 12MB/s, with 100GB capacity. > Any idea how large enterprises (say, Globe or Smart) do > their backups? Often, tape _libraries_ (changers) built on one of the basic types indicated above. I'm personally increasingly leery of any helical-scan design. The head and tape wear rates are just too high. -- Cheers, "Don't use Outlook. Outlook is really just a security Rick Moen hole with a small e-mail client attached to it." [EMAIL PROTECTED] -- Brian Trosko in r.a.sf.w.r-j -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
