ОС_10 Дискови и SSD

8/17/2019 ОС_10 Дискови и SSD

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IBM/Hitachi Microdrive

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http://www.storagereview.com/guide/

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Parameter Info / Range

J#(&*3,( "#*;*

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3/'/4%, 5-10 ms

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! J#*)5(&)0"'%:! 1% %.,(#%#0;e #*$%?0)0 ,0 3*'04* % "#*;*)( 5()#*:,( 20 '(,)#(-*#()

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! 7200RPM! G#*;* 20 *$,0 #()0?%/0: 60000ms/7200 ~= 8ms

! J($0)(3,0 #0)0 ($ 4MByte/s, .(-*;%,0 ,0 &*')(# 1 KB

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9/53


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! J#%;*#:! 10.000 rpm => #()0?%/0 20 6 msec

! M$,0 )#0'0 %;0 300 &*')(#% => *$*,

&*')(# 5(;%,7"0 20 20 microsec.

! G#*;* 20 :0#04* ($ )#0'0 ,0 )#0'0 %2,*&7"0 800 microsec. => Cylinder Skew =

40 &*')(#%

! J(&)(% % head skew


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2,03% $*'0 ,7;*#%#04*)( 5#*&'(',7"0 $"0 &*')(#% (c).


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! A0'( SCAN, ;*C7)(0 &* (5&-7>7"00) :0#040)0 "( *$,0 ,0&('0

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! 17&)%,0 100-150 GB/in2

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! J(;*&)7"04* ,0 &%)* &*')(#% ($0 &* ",%;0"0 ,05#*0;:7-%)*)


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26/53

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! 8*'(/ stripe &($#>% k &*')(#%

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! J(&)(/0) $75-%'0)% ,0 &%)* $%&'("% (45#%;0#,% + 4 backup $%&'("%).

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! K0 SLC (@*-%% &( *$,( ,%"(), @*-%/0)0 * %-% On %-%


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! K0 PLC (@*-%% &( $"* ,%"o0), @*-%/0)0 * %-% On On, On Off, Off On %-%


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! SSD * 5($*-*,( ,0 :-('("%, "( '(% &* 37"00) &)#0,%?%.

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44/53

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! O;0 $"0 ,03%,% ,0 3%)04* % 205%67"04*! Sustained Read and Write

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53/53

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ОС_10 Дискови и SSD

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