משובצות- הרצאה 2 | fault-tolerant systems introduction
TRANSCRIPT
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
1/63
;
Ghogjjgj R|zgh Jglcm42(97;
Ikwnz(Zengrkmz R|zgh
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
2/63
?
Zdg Rlmcng Rzwba Ikwnz Hejgn
Zdg lmcng zwba ikwnz $RRI, hejgn l kne
rgigrrgj ze k zdg bnklbkner zkmjkrjikwnzhejgn
RRI kzzrlowzg6
Lz rgprggmz hkm| jliigrgmz pd|lbkn ikwnz Lz l lmjgpgmjgmz ei zgbdmenec|. k zdg bembgpz ei k lcmkn nlmg
oglmc zwba kz k neclb yknwg bkm og kppnlgj ze km| zrwbzwrknhejgn
Gtpgrlgmbg dk desm zdkz zgz zdkz jgzgbz RRI jgzgbz
hkm| membnklbkn ikwnz k sgnn
Behpkrgj ze ezdgr ikwnz hejgn. zdg mwhogr ei RRI lm kblrbwlz l hknn
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
3/63
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
4/63
:
Zdg Hwnzlpng Rzwba Ikwnz Hejgn
Zdg hwnzlpng zwba ikwnz $HRI, hejgn l k zrklcdzierskrj gtzgmlem ei zdg RRI hejgn lm sdlbdgygrkn nlmg bkm og lhwnzkmgewn| zwba
Li sg jgmezg o| mzdg mwhogr ei pelong RRI
lzg. kmj kwhg zdkz zdg hwnzlpnlblz| ei k ikwnz. l-g-zdg mwhogr ei nlmg lhwnzkmgewn| zwba. l mecrgkzgr zdgm k bemzkmz a. zdgm zdg mwhogr eipelong HRI l6
la
l l
m?
;
8
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
5/63
7
Zdg Hwnzlpng Rzwba Ikwnz Hejgn
Zdl l wwknn| zee nkrcg k mwhogr ze knnes w ze jgkngtpnlblzn| slzd knn hwnzlpng ikwnz-
Sd| je sg mggj ze bemljgr HRI knzecgzdgr5
Rlmbg k hwnzlpng ikwnz Il fwz k gz qi;.i?..iax ei k lmcng
ikwnzil. sd| lmz Ijgzgbzgj o| zdg zgz zdkz jgzgbz zdglmcng ikwnzil5
Zdg gtpnkmkzlem l preyljgj o| zdg hkalmc rgnkzlemkhemc ikwnz
Jgilmlzlem6 Ngz Zc og zdg gz ei knn zgz zdkz jgzgbz k ikwnzc- Sg k| zdkz k ikwnziiwmbzlemknn| hka zdg ikwnz c liizdg hwnzlpng ikwnz qi.cx l mez jgzgbzgj o| km| zgz lm Zc
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
6/63
9
Zdg Hwnzlpng Rzwba Ikwnz Hejgn
Gtkhpng6 Lm zdg ienneslmc blrbwlz zdg zgz 0;; l zdg emn| zgz zdkzjgzgbz zdg ikwnz b (k(0- Zdg khg zgz jeg mez jgzgbz zdg hwnzlpngikwnz qb (k(0. k (k(;x- Zdw k (k(; hka b (k(0
Hkalmc bkm kne og jgilmgj slzd rgpgbz ze k zgz gz Z
Jgilmlzlem6 Ngz ZcZog zdg gz ei knn zgz zdkz jgzgbz k ikwnz c-Sg k| zdkz k ikwnzihka zdg ikwnz cwmjgr k zgz gzZlii zdg
hwnzlpng ikwnz qi.cx l mez jgzgbzgj o| km| zgz lm Zc Iwmbzlemkn hkalmc lhpnlg hkalmc wmjgr km| zgz gz. owz zdg
bemygrg zkzghgmz l mez knsk| zrwg
o
b
k0
; ;;
0;
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
7/63
3
Zdg Hwnzlpng Rzwba Ikwnz Hejgn
Li i hka c. zdgm zdg ikwnz qi.cx l mez jgzgbzgj o|
zdg zgz zdkz jgzgbz c knemg- Owz qi.cx hk| ogjgzgbzgj o| ezdgr zgz- Zdl l zdg bkg slzd zdg
blrbwlz ireh zdg prgylew nljg. sdgrg zdg ikwnz qb
(k(0. k (k(;x l jgzgbzgj o| zdg zgz 0;0 Km lhperzkmz preongh6 clygm k behpngzg zgz Zier
lmcng ikwnz. bkm zdgrg gtlz k hwnzlpng ikwnz I8
qi;. i?..iax wbd zdkz Il mez jgzgbzgj o| Z5
$_ghghogr zdkz Zjgzgbz gygr|il knemg,-
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
8/63
4
Zdg Hwnzlpng Rzwba Ikwnz Hejgn Gtkhpng6 Zdg zgz gz Z8 q;;;;. 0;;;. ;;;0. ;00;. ;0;0.
0;0;x jgzgbz gygr| RRI lm zdg ienneslmc blrbwlz
NgziogO (k(; kmj c og B (k(;- Zdg emn| zgz lm Zzdkzjgzgbz zdg lmcng ikwnzikmj c l ;00;- Desgygr. zdg hwnzlpngikwnz qi.cx l mez jgzgbzgj wmjgr zdg zgz ;00;.ihka c kmj c
hkai
Zdg gtkhpng jghemzrkzg blrbwnkr hkalmc rgnkzlem wmjgr Zkhemc zdg behpemgmz eiI
;
B
;
00%;
0%;
0%;
O
K
;
0%;
J
;%0
;%0
;
-
7/30/2019 Fault-Tolerant Systems Introduction | - 2
9/63