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A 3.5-inch Serial ATA hard disk drive A 2.5-inch Serial ATA solid-state drive. SATA was announced in 2000 [4] [5] in order to provide several advantages over the earlier PATA interface such as reduced cable size and cost (seven conductors instead of 40 or 80), native hot swapping, faster data transfer through higher signaling rates, and more efficient transfer through an (optional) I/O queuing ...
Another application called Drive Setup was used for drive formatting and partitioning and the application Disk Copy was used for working with disk images. [citation needed] Before Mac OS X Panther, the functionality of Disk Utility was spread across two applications: Disk Copy and Disk Utility. Disk Copy was used for creating and mounting disk ...
Enhanced Small Disk Interface (ESDI) was an attempt to minimize controller design time by supporting multiple data rates with a standard data encoding scheme; this was usually negotiated automatically by the disk drive and controller; most of the time, however, 15 or 20 megabit ESDI disk drives were not downward compatible (i.e. a 15 or 20 ...
The ATA standard is supported by both parallel (IDE, PATA) and serial (SATA) ATA hardware. A drawback of the original ATA TRIM command is that it was defined as a non-queueable command and therefore could not easily be mixed with a normal workload of queued read and write operations. SATA 3.1 introduced a queued TRIM command to remedy this. [70]
For most devices, this prefix is followed by a number uniquely identifying the particular device. For hard drives, a letter is used to identify devices and is followed by a number to identify partitions. Thus a file system may "know" an area on a disk as /dev/sda3, for example, or "see" a networked terminal session as associated with /dev/pts/14.
Device configuration overlay (DCO) is a hidden area on many of today's hard disk drives (HDDs). Usually when information is stored in either the DCO or host protected area (HPA), it is not accessible by the BIOS (or UEFI), OS, or the user. However, certain tools can be used to modify the HPA or DCO.
The Go Special Edition is the same as the regular Go but with a different case. All the drives support USB 2.0, and the Xtreme also has 2 FireWire 400 ports and an eSATA port. Mac versions of the drives have different designs and supporting FireWire 800, 400 and USB 2.0: the FreeAgent Go for Mac, FreeAgent Desk for Mac and the FreeAgent Go Pro ...
I/O Kit driver: Macintosh: Classic Mac OS drivers partition Apple_Driver_OpenFirmware: Macintosh: Apple_Extra: unused: This identifier masks an unused partition map entry. Apple_Free: free space: Extra: This identifier masks free space as a partition map entry. Apple_FWDriver: FireWire device driver: Macintosh: Classic Mac OS drivers partition ...