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Minggu, 17 Februari 2013

Berbagai Tipe HardDisk Drive


Berbagai Tipe HardDisk Drive | Komputer – Salah satu perangkat keras (hardware) komputer yang penting adalah HardDisk atau HardDisk Drive disingkat HDD. HardDisk Drive berperan sebagai media penyimpanan utama dalam sebuah perangkat komputer.

Teknologi HardDis ini masih digunakan hingga saat ini. Untuk lebih mengenal HDD, sobat bisa menyimak ulasan mengenai berbagai tipe HardDisk Drive, di bawah ini.

tipe harddisk

Tipe Hard Disk Drive: 
1. ATA : Advanced Technology Attachment 
2. SATA : Serial advance technology attachment 
3. SCSI : Small Computer System Interface. SCSI dibaca scuzzy. 
4. SAS : Serial Attached SCSI

Penjelasan lebih lanjut mengenai berbagai tipe HardDisk Drive

1. ATA : Advanced Technology Attachment

ATA

ATA merupakan interface HardDisk yang paling populer dan banyak digunakan pada PC Desktop maupun PC Server. ATA menggunakan teknologi transfer data secara parallel (semua bit data dikirim secara bersamaan). Kecepatan transfer ATA sebesar 100MB/s atau dikenal dengan ATA/100 dan 133MB/s atau ATA/133. Saat ini teknologi ATA sudah mulai ditinggalkan dan diganti oleh SATA.


2. SATA : Serial advance technology attachment

SATA harddisk

SATA merupakan interface HardDisk yang menggunakan teknologi serial (data dikirim secara berurutan dengan sistem paket bit data). Dengan teknologi serial, transfer data di dalam sistem Hardisk menjadi lebih cepat dan efisien. Saat ini terdapat beberapa tipe sata yaitu SATA1 (transfer rate sebesar 150MB/s) SATA2 (transfer rate sebesar 300 MB/s) dan SATA3 (transfer rate mencapai 600 MB/s).

Dibanding ATA, Teknologi HardDisk SATA tidak hanya unggul dalam hal kecepatan saja, tetapi ada beberapa keunggulan lain seperti :
- SATA bersifat hot plug, dapat dipasang dan dilepas saat komputer masih hidup. 
- Kabel SATA lebih tipis dan panjang maksimal sampai dengan 1 meter, sedangkan kabel ATA hanya sampai 18 inch. 
- Konektor yang menyerupai konektor USB lebih mudah dipasang daripada kabel ATA yang memiliki konektor 40 pin. 
- Konsumsi tegangan listrik yang lebih rendah, dimana SATA hanya menggunakan 0.25 Volt sedangkan ATA menggunakan 5 Volt.


3. SCSI : Small Computer System Interface. SCSI dibaca scuzzy.

SCSI harddisk

Merupakan interface HardDisk yang umum digunakan pada PC Server. SCSI masih menggunakan teknologi parallel, tetapi lebih cepat dan efisien dibandingkan ATA dalam pengolahan data - data kapasitas besar.

Pada satu kabel SCSI dapat diinstalasikan sekita 15 device sekaligus dengan panjang 1,5 meter. SCSI mempunyai beberapa tipe seperti SCSI ultra 160 (transfer rate 160 MB/s)dan SCSI Ultra 320 (transfer rate 320 MB/s). SCSI juga mempunyai 2 macam konektor, yaitu SCSI 68 pin (paling sering digunakan) dan 80 pin single connector attacment (SCA). Saat ini teknologi SCSI mulai digantikan dengan Serial Attached SCSI (SAS)


4. SAS : Serial Attached SCSI

SAS harddisk

Merupakan interface yang menggabungkan feature SCSI dan Serial ATA. SAS menggunakan port konektor mirip SATA dan transfer rate yang lebih baik.

Beberapa keunggulan SAS dibanding SCSI adalah : 
- SAS memiliki kompaibilitas dengan perangkat - perangkat sebelumnya (backward compatibility) misalnya dengan HDD SATA. 
- SAS memiliki domain dan ID khusus yang dinamakan Word Wide Name (WWN) yang bersifat unik dan dapat dikenali lewat network/internet (serupa dengan MAC Address pada LAN Card). 
- SAS bersifat hot plug seperti SATA, dapat dipasang dan dilepas saat komputer masih hidup.

Demikianlah artikel tentang Berbagai Tipe HardDisk Drive. Jangan lupa membaca artikel lain dengan topik komputer di blog ini. Sekian dan terima kasih telah mampir dan meluangkan waktunya untuk share ke blog anomiemine.blogspot. Semoga dapat berkenan dan bermanfaat bagi pembaca.


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