Hard Drive Configuration
- Configure the drive
- Pre-installation before physically installing a hard disk
- Designating the drive as a master/slave or using the Cable Select (CS) feature.
- Master has first priority over Slave.
- SATA drives do not require configuration with jumper blocks
- Configure the host adapter (if used)
- Today’s PCs have integrated host adapters
- Older hard disk drives require separate host adapters(via bus slots
- SCSI drives require a separate host adapter (involves system resources)
- ATA interface driver is part of the PC BIOS
- SCSI interface driver is part of the SCSI BIOS
- When BIOS is enabled specific address space is used (UMA)
- UMA (upper memory are) is the top 384KB in 1MB of system memory
- Physically install the drive
- ATA cables are limited to 18”, shorter is fine, but longer causes signal integrity problems.
- A ground wire is put between the data lines to keep from getting data loss.
- Ultra-DMA modes (ATA-66 to ATA-133) superior 80-conductor cable.
- Simultaneous drives should be set on separate cables
- Configure the system to recognize the drive
- Provide computer with basic drive information
- Autodetect (automatic drive detection) is where the BIOS sends a special identify drive command to all devices attached to it.
- BIOS then enters the information in CMOS automatically
- Manual drive parameters –you must add drive information to system BIOS and provide values for cylinders, heads, and sectors per track
- Partition the drive (FDISK, DISKPART, or SETUP)
- LLF is performed by the manufacturer
- Primary partition can be boot-able but extended cannot
- Large hard disk support (<2.1GB) uses FAT 32 instead of FAT16
- FDISK, DISKPART, and SETUP depend on BIOS info about hard disk.
- Drive partitioning (assigning volumes to separate areas in a hard disk)
- FDISK- DOS command for partitioning with no control over drive letters; accepted through all OS’s (destructive)
- DISKPART(Disk Management)- GUI based; has no provision for migrating data
- High-level format the drive (FROMAT or SETUP)
- Primary function is to create a FAT and directory system on the disk so the OS can manage files.
- You can High-level format with FORMAT.COM program or the formatting utility
Drive letters (C: D: E: F: G: H: I:)
Subdividing a single drive into multiple volumes increases data security
Each sector on a hard disk holds 512B (Bytes).
Primary IDE has first priority over Secondary IDE.
FDISK allows you to create an extended partition using 100% of the drive
CDROM gets leftover drive letters.
FORMAT.COM syntax (FORMAT C: /S /V) format, copy files, label