An external hard drive is a type of hard drive which is connected to a computer by a USB cable or other means. Modern entries into the market consist of standard SATA, IDE, or SCSI hard drives in portable disk enclosures with SCSI, USB, IEEE 1394 Firewire, eSATA client interfaces to connect to the host computer
WD ® announced that it is now shipping WD VelociRaptor ® 450 GB and 600 GB hard drives, the next generation of its 10,000 RPM SATA family of hard drives.
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Optical drives retrieve and/or store data on optical discs like CDs, DVDs, and BDs (Blu-ray discs) which hold much more information than classic portable media options like the floppy disk. Important Optical Disc Drive Facts: Most optical drives can play and/or record onto a large number of different disc formats. Popular formats include CD-ROM, CD-R, CD-RW, DVD, DVD-RAM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, BD-R, and BD-RE
In Microsoft Windows 2003 Server MSCS (Microsoft Cluster Service) environment, MSCS service attempts to retrieve the quorum disk when MSCS folder in quorum disk can not be accessed or it doesn't exist.
Server and Personal Computer Tape Backup systems using 4mm DAT, Travan, Exabyte 8mm, LTO and the various QIC formats are popular and necessary to safeguard your data. However, when these tapes fail, the situation is normally catastrophic as these tapes were often the only remaining repository of the data. Popular backup software such as Legato’s Networker, Cheyenne ArcServe, Veritas BackupExec, Microsoft NTBackup, Dantz Retrospect plus the UNIX tar and cpio utilities (and many more) all use different internal formats.