1. 100, 1000 .
2. .
3. , 1 1*10 14 .
4. 1 11 14 .
5. . 1 , 1 10 8 .
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()
MBR 4 , (. extended partition). , , .
(. volume) , . , .
, , , -. .
, , () . , , . ( ), ( ).
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FAT FAT12, FAT16 FAT32. , .. , . FAT12 , FAT16 . FAT exFAT (extended FAT), -.
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FAT
FAT . . . MS-DOS 2.0.
FAT. , DR-DOS ; Windows 95, Linux Proolix (LFN) Unicode (Virtual FAT VFAT); OS/2 .
(.) leauempuu AT:
LBA ( )
CHS ( /
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( CHS)
.
-
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).
(average seek time)
. 8-10 . 4-5 . 10000 ./ ( 10) 0 J (
) 12 ( ). ,
: : , .
, , (maximum seek time, full seek time)
. .
(average latency) ( 3600 ./ - . 7200 / - 4 . 15 000 ./ - 2 ).
(tniernal liamfer rate) : (/1),
* - . ( 15 000 /) 900 /. (MB/s)
( ) . 5400 ./ 15-25 /. 7200 / - 30-60 /. , ( )
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(external transfer rale). () , , , -
10 Mode 0 33 /. PIO
Mode 4 - 16> /. Ultra-DMA - 33.66.100 133 /
SCSI 5. 10. 20.40.80. 160 320 /. Fibre Channel - 100 200 /, (luitalned throughput)
.
: , , , . J ( - ) . 5400 / 1550 /, 7200 / 20-60 /, 10 000 ./ - 40 80 /. 15 000 ./
40-100 / .
( /\1-), .
(reliability) (data
integrity) :
(Mean Time Before Failure. MTBF).
, , , (100 000 10 ) , , , - . ( ). MTBF. 100 000 , : 200 000-400 000 - , 1 000 000 - . , , (- 8760 ) ( ) ,(Power On Hours, ), ( MTBF , ).
* (limited
ty), ( )
. , MTBF =800 000 (91 ) 3- 5 .
(nonrecoverable read errors per
bits read)
10 , ,
. , , , 1 ( , , ) ,
115 , ( ) F.CC- ,
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(recoverable read error* per bus read) 10" . - ( , ), (
, ).
(seek error per seek) . 10* ( ) , -
. .
(sound power), ( 5400 .) 30 , , 3-4 . (7200 /), , , , 35 . , , 25 , (25. 2,5 - ).
, ,
, *5 *12-. * 12 . (,
) . , . .
(width), (height) (depth) , (inches) .
(weight), (1) .
, , , (operating condition) , (non operating conditions).
Raid 2 , .
. . RAID 1, .
RAID 3 RAID 2 , .
RAID 4 RAID 0. . . .
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RAID 5 , , . RAID 5 RAID 4. RAID 4.
Raid 6,10,50,60
RAID 6
RAID 6
RAID 6 RAID 5, 2- , 2 . RAID-. . 4 [2]. RAID-6 10-15% , RAID-5, ( , ).
RAID 10
RAID 10
RAID 10 , , RAID 0. RAID 0, RAID 1. , 4 . RAID 10 .
RAID 1+0. , , , . , RAID 10 RAID 1+0 . , RAID 10 , , .., , RAID , , .
RAID-50 - RAID-10 RAID-0 RAID-5 - RAID-5, , RAID-0. , RAID-50 / RAID-5.
RAID-60 - : RAID-6, RAID-0.
RAID 5+1 RAID 6+1 - RAID-50 RAID-60 , RAID-0, RAID-1
JBOD (Spanning)
JBOD RAID , RAID. , . , , .
.
. . .
.
1982 Sony Philips, 120 ., 1.2 ., 1 , . , 1.6 , () 0.5 , 0.125 . , . . 780 , 1.4 , - . 74 . 44.1 16- . 99 , ., .. 0-79, 0 75, 0 75, 1.75 4.1 16- 2352 . 150 1 . CD 2, 4, 8 56.
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.
1. . . .
2. . , . .
3. . , . .
DVD .
cd , 2- . 2-. , 2 2 . dvd 635 650 .
1 DVD 1,35 /.
Blue-ray .
405 1 =36,5 /.
.
. . . , .. - . 1 , . :
1) , .. .
2) 2- . .
. . 2 : SLC MLC
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.
. NOR - , NAN - . NOR 2 , 0, 1 , .. . . NOR . . 2- . : , . NAN NAN . . , (). , .. NAN , .
.
.
7200
3,5
,
2
16
64
2
250-2
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3
Ramdak .
Ramdak 400 410 .
(SRT)-
1. . . . . . - . .
- . .
.
.
.
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: . , . () , . 3 : , .
TN+Film
. - TN- .
, 2 , 2 , .
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