HARDDISK DRIVE
Hard disk drive a rigid non-removable magnetic disk with a large data storage capacity.
A magnetic disk drive on which you can store computer data. The term hard drive is used to distinguish it from a soft, or floppy, disk. Hard disks drive hold more data and are faster than floppy disks drive. … For example, a typical 84-megabyte hard disk drive for a PC might have two platters (four sides) and 1,053 cylinders.
TYPE OF HARDDISK DRIVE
Desktop hard disk drive
Surveillance hard disk drive
DESKTOP HARD DISK DRIVE
An internal Desktop hard disk drive makes use of two ports: one for data and the other for power. The data port uses either a Serial Advanced Technology Attachment (SATA) or an Advanced Technology Attachment (ATA) interface, which connects to the computer’s Desktop hard disk drive, enabling communication with the motherboard.
SURVEILLANCE HARD DISK DRIVE
While a surveillance, hard disk drive forms a central component to the digital storage of surveillance video. It can be used in a DVR, NVR, Video Server or a Video Management System in order to work 24 hours a day and 7 days week (24*7). These hard disk drives need to be always active, in order to keep video evidence live.
DIFFERENCE BETWEEN A DESKTOP HARD DISK AND SURVEILLANCE HARD DISK
DESKTOP HARD DISK DRIVE
- It resulted in 175.9 MB/s read speed and on CrystalDiskMark read speed was 161.4 MB/s and write speed was 160.3 MB/s.
- In our real life test, it was able to transfer 2 GB of assorted data from PC to Desktop hard disk drive in 34 seconds with speed up to 362.4 MB/s. While transferring from Desktop hard disk drive to PC, it took 38 seconds with up to 466.09 MB/s speed.
- PC drives are engineered for storage, perform read, and write as well as data transfer capability
- Normal Desktop hard disk drive does not come with the ability to withstand always-on operational demands and not include the application specific features necessary to handle surveillance environments.
- Cost plays an important role, as video drives are engineered for surveillance environments so you might think, it will cost higher. Actually, only a few bucks difference is there in the price of similar capability desktop hard disk drive and surveillance drive.
SURVEILLANCE HARD DISK DRIVE
- It resulted in 180.7 MB/s read speed and on CrystalDiskMark read speed was 166.8 MB/s and write speed was 165.5 MB/s.
- In our real life test, it was able to transfer 2 GB of assorted data from PC to hard disk drive in 8 seconds with speed up to 563.2 MB/s. While transferring from hard disk drive to PC, it took 34 seconds with up to 459.8 MB/s speed.
- While the surveillance hard disk drives are tuned for 90% of its time (24x7x365 days) for recording video and 10% for reviewing and playing back data.
