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7/22/2019 Root Disk Mirroring On Debian Linux
1/20
QHHY IKVM JKQQHQKLN HL IGAKBL@KLWSJkrrhr ks b skjp`g wby th nbkl rgiuliblfy hl b skln`g Wlkx sgrvgr. Ay auk`ikln jkrrhrgi rhht iksms
(bs b QBKI2 Nrhup), systgj whu`i ag sbdgr kl fbsg hlg iksm dbk`gi. Vystgj stk`` bffgsska`g
blytkjg b skln`g iksm dbk`urg cbppgl.
Jkrrhrkln wktc 1 pcyskfb` iksms
Kl tcks sfglbrkh wg wk`` try th auk`i b jkrrhrgi rhht iksm hl Igakbl @klux sgrvgr. ^g wk`` prgpbrg
lgw iksm irkvg bs dkrst fhjphlglt hd QBKI2 nrhup. Ycgl wg wk`` fhpy b`` fhltglt hd rhht iksm klth
kt. Bdtgr ibtb cbs aggl fhpkgi, wg wk`` rgahht tcg sgrvgr bli dhrfg tcg sgrvgr th ahht uskln tcg
lgw iksm. Hlfg tcg systgj up, wg wk`` bttbfc gxkstkln rhht iksm bs sgfhli fhjphlglt hd QBKI2
nrhup. Bt tcg gli wg fbl usg ahtc iksm bs ahhtba`g iksm.
_rgpbrbtkhl
2. @gts stbrt ay kigltkdkgi gxkstkln systgj 5
_`btdhrj 5 tcks tgst glvkrhljglt ks uskln Igakbl @klux rg`gbsg >.2 (fhig lbjg 5
^cggzy) 5
rhhtOigakbl?25~#ibtg
YugVgp19??5935?>^KY1?26
rhhtOigakbl?25~#ulbjg:b
@kluxigakbl?26.1.?:9:434:pbg#2VJ_Igakbl6.1.94:2+iga>u2k434NLW/@klux
rhhtOigakbl?25~#`saXrg`gbsg:b
Lh@VAjhiu`gsbrgbvbk`ba`g.
IkstrkauthrKI5Igakbl
7/22/2019 Root Disk Mirroring On Debian Linux
2/20
Igsfrkptkhl5IgakblNLW/@klux>.2(wcggzy)
Qg`gbsg5>.2
Fhiglbjg5wcggzy
rhhtOigakbl?25~#
_cyskfb` iksms 5 wg fbl fcgfm klstb``gi iksms uskln diksm:` fhjjbli bs schwl kl
tcg dh``hwkln gxbjp`g 5
rhhtOigakbl?25~#diksm:`
Iksm/igv/sib512.7NA,129>936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgs
Vgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x???9d>;3
IgvkfgAhhtVtbrtGliA`hfmsKiVystgj
/igv/sib2*1?932;977;;417436@klux
/igv/sib12;974?2;>14667;>4733336@klux/igv/sib62;>14664164623>22;71>4331@kluxswbp/Vh`brks
/igv/sib9164623>192;9?;;2;27974?36@klux
Iksm/igv/sia512.7NA,129>936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgs
Vgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x????????
Iksm/igv/siaihgsl'tfhltbklbvb`kipbrtktkhltba`g
rhhtOigakbl?25~#
Hl tcg gxbjp`g bahvg, wg fbl sgg 1 iksm irkvgs klstb``gi. Dkrst ks tcg bftkvg rhht iksm
( /igv/sib ) bli tcg sgfhli hlg ks lgw iksm ( /igv/sia ).
BVVWJ_YKHL 5 Dhr tcg sbmg hd skjp`kfkty wg wk`` fb`` tcg gxkstkln rhht iksm
( /igv/sib ) bs rhhtiksm . Bli tcg sgfhli iksm ( /igv/sia ) bs rhhtjkrrhr .
Dk`gsystgj 5 wg b`sh lggi th mlhw wcbt dk`gsystgj usgi ay gbfc pbrtktkhl. Yh ih tcbt
wg fbl usg a`mki fhjjbli tcbt b`sh fbl prhvkig us WWKI kldhrjbtkhl dhr gbfc
pbrtktkhl 5
rhhtOigakbl?25~#a`mki
/igv/sib65WWKI"f2a4>;da:i7;d:99>3:b263:dg1g6b4afga?"Y[_G"swbp"
/igv/sr?5@BAG@"Igakbl>.2.?k6342"Y[_G"ksh;44?"
/igv/sib25WWKI"26;3ii?4:>gd1:94f6:;bfg:b1613a2ia>36"Y[_G"gxt6"
/igv/sib15WWKI"9b?44i4i:f3bi:94b9:bg79:223ib46ifai1"Y[_G"gxt6"
/igv/sib95WWKI"3i32;;91:dg7i:9469:bba>:13fgfb;a1dg2"Y[_G"gxt6"
rhhtOigakbl?25~#
_brtktkhl strufturg 5 wg fbl fcgfm gxkstkln pbrtktkhl strufturg & kts jhultphklt ay
gxbjklkln tcg /gtf/dstba dk`g 5
rhhtOigakbl?25~#fbt/gtf/dstba
#/gtf/dstba5stbtkfdk`gsystgjkldhrjbtkhl.
7/22/2019 Root Disk Mirroring On Debian Linux
3/20
#
#Wsg'a`mki'thprklttcgulkvgrsb``yulkqugkigltkdkgrdhrb
#igvkfg=tcksjbyagusgiwktcWWKIbsbjhrgrhaustwbythlbjgigvkfgs
#tcbtwhrmsgvglkdiksmsbrgbiigiblirgjhvgi.Vggdstba(7).
#
#0dk`gsystgj3:b263:dg1g6b4afga?lhlgswbpsw?
?
/igv/sr?/jgikb/firhj?uid,ksh;44?usgr,lhbuth??
rhhtOigakbl?25~#
Hr wg fbl usg tcg skjp`gst aut s`knct`y `gss kldhrjbtkvg id fhjjbli 5
rhhtOigakbl?25~#id:c
Dk`gsystgjVkzgWsgiBvbk`Wsg%Jhultgi
hl
rhhtds;.1N464J3.2N3%/
uigv2?J?2?J?%/igv
tjpds2?2J164M2?2J2%/rul
/igv/iksm/ay:uuki/9b?44i4i:f3bi:94b9:bg79:223ib46ifai1;.1N464J3.2N3%/
tjpds7.?J?7.?J?%
/rul/`hfm
tjpds739J?739J?%/rul/scj
/igv/sib2;1J11J47J17%/ahht
/igv/sib93.4N293J3.2N1%/chjg
rhhtOigakbl?25~#
Drhj tchsg twh hutput, wg mlhw tcbt 5
/igv/sib2 fhltbkls /ahht dk`gsystgj
/igv/sib1 fhltbkls rhht dk`gsystgj
/igv/sib6 usgi bs swbp spbfg
/igv/sib9 fhltbkls /chjg dk`gsystgj
1. ^g wk`` usg jibij pbfmbng dhr jblbng QBKI nrhup bli auk`i tcg jkrrhr. Yh klstb`` jibij
pbfmbng kl Igakbl-wby, wg fbl usg bpt:ngtklstb`` fhjjbli bs schwl ag`hw 5
rhhtOigakbl?25~#bpt:ngtklstb``jibij
Qgbiklnpbfmbng`ksts...Ihlg
Auk`iklnigpgliglfytrgg
Qgbiklnstbtgkldhrjbtkhl...Ihlg
Ycgdh``hwklnLG^pbfmbngswk``agklstb``gi5
jibij
?upnrbigi,2lgw`yklstb``gi,?thrgjhvgbli?lhtupnrbigi.
Lggithngt?A/744mAhdbrfckvgs.
Bdtgrtckshpgrbtkhl,2?;3mAhdbiiktkhlb`iksmspbfgwk``agusgi.
_rgfhldknurklnpbfmbngs...
Vg`gftklnprgvkhus`yulsg`gftgipbfmbngjibij.
7/22/2019 Root Disk Mirroring On Debian Linux
4/20
(Qgbiklnibtbabsg...194;9dk`gsbliikrgfthrkgsfurrglt`yklstb``gi.)
Wlpbfmklnjibij(drhj.../j/jibij/jibijX6.1.7:7Xk634.iga)...
_rhfgssklntrknngrsdhrjbl:ia...
Vgttklnupjibij(6.1.7:7)...
Nglgrbtklnbrrbyigvkfglhigs...ihlg.
Nglgrbtklnjibij.fhld...ihlg.
upibtg:klktrbjds5igdgrrklnupibtg(trknngrbftkvbtgi)
]hmZBssgja`klnJIbrrbys...ihlg(lhbrrbysdhuliklfhldkndk`ghrbuthjbtkfb``y).
]hmZVtbrtklnJIjhlkthrklnsgrvkfg5jibij::jhlkthr.
_rhfgssklntrknngrsdhrklktrbjds:thh`s...upibtg:klktrbjds5Nglgrbtkln/ahht/klktri.kjn:6.1.?:9:434:pbg
^5jibij5/gtf/jibij/jibij.fhldigdklgslhbrrbys.
^5jibij5lhbrrbysigdklgiklfhldknurbtkhldk`g.
rhhtOigakbl?25~#
6. Agdhrg jhvkln dhrwbri, wg lggi th abfmup sgvgrb` kjphrtblt dk`gs
( /gtf/dstba , /gtf/igdbu`t/nrua , bli /gtf/jibij/jibij.fhld ) bs schwl kl tcg
dh``hwkln gxbjp`g 5
rhhtOigakbl?25~#fp/gtf/dstba/gtf/dstbaXhrkn
rhhtOigakbl?25~#fp/gtf/igdbu`t/nrua/gtf/igdbu`t/nruaXhrkn
rhhtOigakbl?25~#fp/gtf/jibij/jibij.fhld/gtf/jibij/jibij.fhldXhrkn
9. Lgxt wg lggi th `hbi sgvgrb` jhiu`g th tcg rullkln mgrlg` 5
rhhtOigakbl?25~#jhiprhag`klgbr
rhhtOigakbl?25~#jhiprhagju`tkpbtc
rhhtOigakbl?25~#jhiprhagrbki?
rhhtOigakbl?25~#jhiprhagrbki2
rhhtOigakbl?25~#jhiprhagrbki7
rhhtOigakbl?25~#jhiprhagrbki4
rhhtOigakbl?25~#jhiprhagrbki2?
7. Kldhrjbtkhl hd bftkvg & rullkln QBKI nrhup fbl ag sggl klskig /prhf/jistbt dk`g 5
rhhtOigakbl?25~#fbt/prhf/jistbt
_grshlb`ktkgs5]`klgbrZ]ju`tkpbtcZ]rbki?Z]rbki2Z]rbki4Z]rbki7Z]rbki9Z]rbki2?Z
ulusgiigvkfgs50lhlg936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgs
Vgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x????????
Iksm/igv/siaihgsl'tfhltbklbvb`kipbrtktkhltba`g
rhhtOigakbl?25~#
^cbt wg lggi th ih ks fhpy tcg pbrtktkhl tba`g drhj tcg gxkstkln rhht iksm ( /igv/sib ) uskln
sdiksm fhjjbli bs schwl ag`hw 5
rhhtOigakbl?25~#sdiksm:i/igv/sib|sdiksm::dhrfg/igv/sia
Fcgfmklntcbtlh:hlgksusklntcksiksmrknctlhw...
HM
Iksm/igv/sia5142?fy`kligrs,177cgbis,46sgfthrs/trbfm
sdiksm5GQQHQ5sgfthr?ihgslhtcbvgbljsihssknlbturg/igv/sia5ulrgfhnlkzgipbrtktkhltba`gtypg
H`isktubtkhl5
Lhpbrtktkhlsdhuli
Lgwsktubtkhl5
Wlktssgfthrshd721aytgs,fhultklndrhj?
IgvkfgAhhtVtbrtGli#sgfthrsKiVystgj
/igv/sia2*1?932;977;2;172136@klux
/igv/sia12;974?2;>146672;762>>436@klux
/igv/sia62;>14664164623>26;?776431@kluxswbp/Vh`brks
/igv/sia9164623>192;9?;;2236?;21?36@klux
^brlkln5pbrtktkhl2ihgslhtglibtbfy kligrahulibry^brlkln5pbrtktkhl1ihgslhtstbrtbtbfy`kligrahulibry
^brlkln5pbrtktkhl1ihgslhtglibtbfy kligrahulibry
^brlkln5pbrtktkhl6ihgslhtstbrtbtbfy`kligrahulibry
^brlkln5pbrtktkhl6ihgslhtglibtbfy kligrahulibry
^brlkln5pbrtktkhl9ihgslhtstbrtbtbfy`kligrahulibry
^brlkln5pbrtktkhl9ihgslhtglibtbfy kligrahulibry
Vuffgssdu``ywrhtgtcglgwpbrtktkhltba`g
Qg:rgbiklntcgpbrtktkhltba`g...
KdyhufrgbtgihrfcblngibIHVpbrtktkhl,/igv/dhh>,sby,tcglusgii(2)
thzgrhtcgdkrst721aytgs5iikd/igv/zgrhhd/igv/dhh>as721fhult2
(Vggdiksm(3).)
rhhtOigakbl?25~#
Bdtgr fhpy tcg pbrtktkhl tba`g, wg fbl sgg tcbt rhhtjkrrhr lhw cbs tcg sbjg pbrtktkhl
`byhut bs tcg rhht iksm 5
rhhtOigakbl?25~#diksm:`/igv/sia
Iksm/igv/sia512.7NA,129>936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgsVgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x????????
IgvkfgAhhtVtbrtGliA`hfmsKiVystgj
7/22/2019 Root Disk Mirroring On Debian Linux
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/igv/sia2*1?932;977;;417436@klux
/igv/sia12;974?2;>14667;>4733336@klux
/igv/sia62;>14664164623>22;71>4331@kluxswbp/Vh`brks
/igv/sia9164623>192;9?;;2;27974?36@klux
rhhtOigakbl?25~#
1. Vklfg wg wk`` ehkl rhhtjkrrhr klth b QBKI2 nrhup, wg lggi th sgt gvgry pbrtktkhl uligr kt
th usg @klux rbki buth typg. ^g usg diksm fhjjbli th sgt tcg pbrtktkhl typg, cgrg ks tcgsbjp`g 5
rhhtOigakbl?25~#diksm/igv/sia
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)52
Cgxfhig(typg@th`kstfhigs)5@
?Gjpty19LGFIHV32Jklkx/h`i@kladVh`brks
2DBY211>CkiiglLYDV^kl31@kluxswbp/Vhf2IQIHV/sgf(DBY:
1SGLKSrhht6;_`bl;36@kluxf9IQIHV/sgf(DBY:
6SGLKSusr6f_brtktkhlJbnkf39HV/1ckiiglF5f4IQIHV/sgf(DBY:
9DBY24061J9?Tglkx3?13437@kluxgxtgligif>Vyrklx
7Gxtgligi92__F_Qg_Ahht34LYDVvh`ujgsgtibLhl:DVibtb
4DBY2491VDV3>LYDVvh`ujgsgtiaF_/J/FYHV/.
>C_DV/LYDV/gxDBY9iRLS9.x33@kluxp`bkltgxtigIg``Wtk`kty
3BKS9gRLS9.x1lipbrt3g@klux@TJidAhhtKt
;BKSahhtba`g9dRLS9.x6ripbrt;6Bjhgabg2IHVbffgss
bHV/1AhhtJblbn7?HlYrbfmIJ;9BjhgabAAYg6IHVQ/H
a^;7DBY6172HlYrbfmIJ4Bux;dAVI/HVg9VpggiVthr
f^;7DBY61(@AB)71F_/Jb?KAJYcklmpbickgaAgHVds
g^;7DBY24(@AB)76HlYrbfmIJ4Buxb7DrggAVIggN_Y
d^;7Gxt'i(@AB)79HlYrbfmIJ4b4HpglAVIgdGDK(DBY:21/24/
2?H_WV77GU:Irkvgb>LgSYVYG_d?@klux/_B:QKVFa22CkiiglDBY2174Nh`iglAhwb3IbrwklWDVd2VpggiVthr
21Fhjpbqikbnlhst7f_rkbjGiksmb;LgtAVId9VpggiVthr
29CkiiglDBY240642VpggiVthrbaIbrwklahhtd1IHVsgfhlibry
24CkiiglDBY2446NLWCWQIhrVysbdCDV/CDV+daTJwbrgTJDV
2>CkiiglC_DV/LYD49Lhvg``Lgtwbrga>AVIKdsdfTJwbrgTJMFHQG
23BVYVjbrtV`ggp47Lhvg``Lgtwbrga3AVIKswbpdi@kluxrbkibuth
2aCkiigl^;7DBY6>?IksmVgfurgJu`taaAhht^kzbrickidg@BLstgp
2fCkiigl^;7DBY6>7_F/KSagVh`brksahhtddAAY
2gCkiigl^;7DBY23?H`iJklkx
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl1thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)51
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl2thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)56
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl6thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)59
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl9thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5w
Ycgpbrtktkhltba`gcbsagglb`tgrgi!
7/22/2019 Root Disk Mirroring On Debian Linux
7/20
Fb``klnkhft`()thrg:rgbipbrtktkhltba`g.
Vylfklniksms.
rhhtOigakbl?25~#
Cgrg ks tcg gxp`blbtkhl bahut wcbt cbppgl hl tcg gxbjp`g bahvg 5
Vtbrt diksm utk`kty ay typkln diksm/igv/sia dh``hwgi ay Gltgr. diksm utk`kty wk``
rgbiy th whrm hl /igv/sia .
Yypg t th stbrt sgttkln tcg pbrtktkhl typg. _rgss Gltgr th fhltklug.
Ycgl typg tcg lujagr hd pbrtktkhl wg wblt th sgt. _rgss Gltgr th fhltklug.
Ycgrg brg jbly pbrtktkhl typg bvbk`ba`g, wg fbl sgg b`` bvbk`ba`g typg ay typg @
dh``hwgi ay Gltgr.
Kl tcks fbsg wg wblt th usg pbrtktkhl typg @klux rbki buth sh wg typg di dh``hwgi ay
Gltgr.
Bdtgr b`` pbrtktkhl sgt up, wg just dklb`kzg tcg fcblngs ay typkln w (bs kl ^rktg tcks
fcblngs th tcg iksm) dh``hwgi ay Gltgr.6. ^ktc pbrtktkhl typg b`rgbiy sgt, wg fbl fhltklug frgbtg ji igvkfg b.m.b vkrtub` pbrtktkhl.
ji ks barrgvkbtkhl dhr Ju`tkp`g Igvkfgs. Agdhrg frgbtg lgw ji igvkfg, wg schu`i f`gbl up
tcg pbrtktkhl uskln tcg dh``hwkln fhjjbli 5
rhhtOigakbl?25~#jibij::zgrh:supgra`hfm/igv/sia2
rhhtOigakbl?25~#jibij::zgrh:supgra`hfm/igv/sia1
rhhtOigakbl?25~#jibij::zgrh:supgra`hfm/igv/sia6
rhhtOigakbl?25~#jibij::zgrh:supgra`hfm/igv/sia9
Bftub``y tcks stgp hl`y bpp`kfba`g kd tcg pbrtktkhl cbs aggl usgi bs ji igvkfg. Kl tcks fbsg kt
ikilt rgb``y jbttgr sklfg wg usg lgw gjpty iksm.
9. Yh stbrt frgbtg ji igvkfg, wg usg jibij::frgbtg fhjjbli. Cgrg ks tcg syltbx th
frgbtg ji igvkfg uskln jibij fhjjbli 5
jibij::frgbtg/igv/ji0KI
7/22/2019 Root Disk Mirroring On Debian Linux
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rhhtOigakbl?25~#
Agfbusg wg ihlt wblt th thufc tcg gxkstkln rhht iksm ( /igv/sib ) ygt, wg wk`` jbrm kt bs
jksskln .
Ycgl wg fbl fhltklug wktc sgfhli pbrtktkhl hd rhhtjkrrhr 5
rhhtOigakbl?25~#jibij::frgbtg/igv/ji2::`gvg`2::rbki:iksms1jksskln/igv/sia1
jibij5Lhtg5tcksbrrbycbsjgtbibtbbttcgstbrtbli
jbylhtagsuktba`gbsbahhtigvkfg.Kdyhup`blth
sthrg'/ahht'hltcksigvkfgp`gbsgglsurgtcbt
yhurahht:`hbigruligrstblisji/v2.xjgtbibtb,hrusg
::jgtbibtb?.;?
Fhltklugfrgbtklnbrrby8y
jibij5Igdbu`tklnthvgrskhl2.1jgtbibtb
jibij5brrby/igv/ji2stbrtgi.
rhhtOigakbl?25~#
Dklksc ay frgbtg vkrtub` pbrtktkhl dhr tckri bli dhurtc pbrtktkhl hd rhhtjkrrhr 5
rhhtOigakbl?25~#jibij::frgbtg/igv/ji1::`gvg`2::rbki:iksms1jksskln/igv/sia6
jibij5Lhtg5tcksbrrbycbsjgtbibtbbttcgstbrtbli
jbylhtagsuktba`gbsbahhtigvkfg.Kdyhup`blth
sthrg'/ahht'hltcksigvkfgp`gbsgglsurgtcbt
yhurahht:`hbigruligrstblisji/v2.xjgtbibtb,hrusg
::jgtbibtb?.;?
Fhltklugfrgbtklnbrrby8y
jibij5Igdbu`tklnthvgrskhl2.1jgtbibtb
jibij5brrby/igv/ji1stbrtgi.
rhhtOigakbl?25~#rhhtOigakbl?25~#jibij::frgbtg/igv/ji6::`gvg`2::rbki:iksms1jksskln/igv/sia9
jibij5Lhtg5tcksbrrbycbsjgtbibtbbttcgstbrtbli
jbylhtagsuktba`gbsbahhtigvkfg.Kdyhup`blth
sthrg'/ahht'hltcksigvkfgp`gbsgglsurgtcbt
yhurahht:`hbigruligrstblisji/v2.xjgtbibtb,hrusg
::jgtbibtb?.;?
Fhltklugfrgbtklnbrrby8y
jibij5Igdbu`tklnthvgrskhl2.1jgtbibtb
jibij5brrby/igv/ji6stbrtgi.
rhhtOigakbl?25~#
7. Lhw wg cbvg 9 vkrtub` pbrtktkhl, sh tcg lgxt stgp ks th jbmg tcg lgw dk`gsystgj hl gbfc
pbrtktkhl. ^g wk`` usg gxt6 dk`gsystgj dhr /igv/ji? , /igv/ji2 , bli /igv/ji6 . Yh
frgbtg b gxt6 dk`gsystgj wg usg jmds.gxt6 fhjjbli bs schwl kl tcg dh``hwkln gxbjp`g
5
rhhtOigakbl?25~#jmds.gxt6/igv/ji?
jmg1ds2.91.7(1;:Eu`:1?21)
Dk`gsystgj`bag`
HVtypg5@klux
A`hfmskzg2?19(`hn?)
Drbnjgltskzg2?19(`hn?)Vtrkig?a`hfms,Vtrkpgwkitc?a`hfms
19?;4klhigs,;4213a`hfms
93?4a`hfms(7.??%)rgsgrvgidhrtcgsupgrusgr
Dkrstibtba`hfm2
Jbxkjujdk`gsystgja`hfms4>6>2??3
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21a`hfmnrhups
32;1a`hfmspgrnrhup,32;1drbnjgltspgrnrhup
1??3klhigspgrnrhup
Vupgra`hfmabfmupssthrgihla`hfms5
32;6,197>>,9?;42,7>697,>6>1;
B``hfbtklnnrhuptba gs5ihlg
^rktklnklhigtba`gs5ihlg
Frgbtklnehurlb`(9?;4a`hfms)5ihlg
^rktklnsupgra`hfmsblidk`gsystgjbffhultklnkldhrjbtkhl5ihlg
rhhtOigakbl?25~#jmds.gxt6/igv/ji2
jmg1ds2.91.7(1;:Eu`:1?21)
Dk`gsystgj`bag`
HVtypg5@klux
A`hfmskzg9?;4(`hn1)
Drbnjgltskzg9?;4(`hn1)
Vtrkig?a`hfms,Vtrkpgwkitc?a`hfms
42?3??klhigs,196;6;1a`hfms
212;4;a`hfms(7.??%)rgsgrvgidhrtcgsupgrusgr
Dkrstibtba`hfm?
Jbxkjujdk`gsystgja`hfms19;;3?7239>7a`hfmnrhups
61>43a`hfmspgrnrhup,61>43drbnjgltspgrnrhup
3299klhigspgrnrhup
Vupgra`hfmabfmupssthrgihla`hfms5
61>43,;36?9,24639?,11;6>4,1;9;21,32;1??,339>64,24?7461
B``hfbtklnnrhuptba gs5ihlg
^rktklnklhigtba`gs5ihlg
Frgbtklnehurlb`(61>43a`hfms)5ihlg
^rktklnsupgra`hfmsblidk`gsystgjbffhultklnkldhrjbtkhl5ihlg
rhhtOigakbl?25~#jmds.gxt6/igv/ji6
jmg1ds2.91.7(1;:Eu`:1?21)
Dk`gsystgj`bag`
HVtypg5@klux
A`hfmskzg9?;4(`hn1)
Drbnjgltskzg9?;4(`hn1)
Vtrkig?a`hfms,Vtrkpgwkitc?a`hfms
7>161?klhigs,113474?a`hfms
229613a`hfms(7.??%)rgsgrvgidhrtcgsupgrusgr
Dkrstibtba`hfm?
Jbxkjujdk`gsystgja`hfms1699427;64
>?a`hfmnrhups
61>43a`hfmspgrnrhup,61>43drbnjgltspgrnrhup
32>4klhigspgrnrhupVupgra`hfmabfmupssthrgihla`hfms5
61>43,;36?9,24639?,11;6>4,1;9;21,32;1??,339>64,24?7461
B``hfbtklnnrhuptba gs5ihlg
^rktklnklhigtba`gs5ihlg
Frgbtklnehurlb`(61>43a`hfms)5ihlg
^rktklnsupgra`hfmsblidk`gsystgjbffhultklnkldhrjbtkhl5ihlg
rhhtOigakbl?25~#
4. Dhr /igv/ji1 , wg wk`` jbrmgi kt bs swbp spbfg uskln jmswbp fhjjbli bs schwl kl tcg
dh``hwkln gxbjp`g 5
rhhtOigakbl?25~#jmswbp:d/igv/ji1
Vgttklnupswbpspbfgvgrskhl2,skzg2;724>4MkA
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lh`bag`,WWKI1db3a9>a:g33;:924?:;di?:f12a33a4i6g6
rhhtOigakbl?25~#
>. Gbfc vkrtub` pbrtktkhl lggi th ag stbrtgi iurkln tcg ahht prhfgss. Vh wg lggi th rgnkstgr b``
tcg vkrtub` pbrtktkhl wg cbi jbig klth jibij.fhld dk`g. ^cbt wg lggi th rgnkstgr ks tcg
hutput hd tcg dh``hwkln fhjjbli 5
rhhtOigakbl?25~#jibij::gxbjklg::sfbl
BQQB[/igv/ji/?jgtbibtb2.1WWKI7i>i34>15f?2;b>i?54;62?d1;56fi47i?9lbjgigakbl?25?
BQQB[/igv/ji/2jgtbibtb2.1WWKI4>46221;5a>>44f>g5i21??i775?64bi2f4lbjgigakbl?252
BQQB[/igv/ji/1jgtbibtb2.1WWKI2;fag79f51bb1214f5;1gib4gg5ddf41da;lbjgigakbl?251
BQQB[/igv/ji/6jgtbibtb2.1WWKIi27>;6b25693f463?5b;9i>6a65b9>d6ad>lbjgigakbl?256
rhhtOigakbl?25~#
^g fbl fhpy tchsg hutput th /gtf/jibij/jibij.fhld jblub``y uskln tgxt gikthr, hr wg
fbl usg skjp`g rgikrgftkhl bs schwl ag`hw 5
rhhtOigakbl?25~#jibij::gxbjklg::sfbl
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#tcbtwhrmsgvglkdiksmsbrgbiigiblirgjhvgi.Vggdstba(7).
#
#0dk`gsystgj
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29. Vtk`` drhj fcrhht glvkrhljglt hd vkrtub` pbrtktkhls, wg b`sh lggi th nglgrbtg tcg
klktrbjds kjbng. klktrbjds ks usgi iurkln ahht prhfgss th `hbi b`` rhht dk`gsystgj.
rhhtOigakbl?25/#upibtg:klktrbjds:u
upibtg:klktrbjds5Nglgrbtkln/ahht/klktri.kjn:6.1.?:9:434:pbg
jibij5fbllhthpgl/igv/ji/?5Lhsufcdk`ghrikrgfthry
jibij5fbllhthpgl/igv/ji/25Lhsufcdk`ghrikrgfthry
jibij5fbllhthpgl/igv/ji/15Lhsufcdk`ghrikrgfthryjibij5fbllhthpgl/igv/ji/65Lhsufcdk`ghrikrgfthry
rhhtOigakbl?25/#
^g fbl knlhrg tchsg mkli hd grrhrs dhr lhw.
27. @bst tcklns just ag ihlg drhj klskig fcrhht ks rgklstb`` ahht `hbigr hl ahtc iksm irkvgs.
Igakbl systgj usg NQWA ahht `hbigr ay igdbu`t. Yh rgklstb`` ahht `hbigr wg usg
nrua:klstb`` fhjjbli bs schwl ag`hw 5
rhhtOigakbl?25/#nrua:klstb``/igv/sib
Klstb``btkhldklkscgi.Lhgrrhrrgphrtgi.
rhhtOigakbl?25/#nrua:klstb``/igv/sia
Klstb``btkhldklkscgi.Lhgrrhrrgphrtgi.
rhhtOigakbl?25/#gxkt
24. ^g fbl gxkt fcrhht glvkrhljglt bli scutihwl tcg systgj 5
rhhtOigakbl?25/#
gxkt
rhhtOigakbl?25~#rgahhtrhhtOigakbl?25~#scutihwl:clhw
ArhbifbstjgssbngdrhjrhhtOigakbl>(pts/6)(YugVgp19?25?95?61?26)5
Ycgsystgjksnhklnihwldhrsystgjcb`tLH^!
rhhtOigakbl?25~#
2>. Ycgl wg wk`` ahht tcg sgrvgr uskln tcg sgfhli iksm ( /igv/sia ). Kd b`` tcg sgtup bahvg
suffgss, tcgl systgj fbl ahht uskln /igv/sia ( rhhtjkrrhr ) iksm.
Bttbfc Qhht Iksm Yh QBKI2 Nrhup
Bdtgr rgahht systgj schu`i b`rgbiy usg tcg vkrtub` pbrtktkhl. Bs wg fbl sgg drhj id fhjjbli
hutput ag`hw 5
rhhtOigakbl?25~#id:c
Dk`gsystgjVkzgWsgiBvbk`Wsg%Jhultgihl
rhhtds;.1N46>J3.2N3%/
uigv2?J?2?J?%/igv
tjpds2?2J1>4M2?2J2%/rul/igv/ji2;.1N46>J3.2N3%/
tjpds7.?J?7.?J?%/rul/`hfm
tjpds739J?739J?%/rul/scj
/igv/ji?;2J11J47J14%/ahht
/igv/ji63.4N293J3.2N1%/chjg
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rhhtOigakbl?25~#
^g fbl fcgfm tcg QBKI2 kldhrjbtkhl dhr gbfc vkrtub` pbrtktkhl uskln tcg dh``hwkln fhjjbli 5
jibij:I/igv/ji0KIi34>15f?2;b>i?54;62?d1;56fi47i?9
Gvglts569
LujagrJbehrJklhrQbkiIgvkfgVtbtg
????rgjhvgi
232>2bftkvgsylf/igv/sia2
rhhtOigakbl?25~#
rhhtOigakbl?25~#jibij:I/igv/ji2
/igv/ji25
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??57956;1?26
Qbki@gvg`5rbki2
BrrbyVkzg5;>7>743(;.62NkA;.;;NA)
WsgiIgvVkzg5;>7>743(;.62NkA;.;;NA)QbkiIgvkfgs51
Yhtb`Igvkfgs52
_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19?25?75?21?26
Vtbtg5f`gbl,ignrbigi
BftkvgIgvkfgs52
^hrmklnIgvkfgs52
Dbk`giIgvkfgs5?
VpbrgIgvkfgs5?
Lbjg5igakbl?252(`hfb`thchstigakbl?2)WWKI54>46221;5a>>44f>g5i21??i775?64bi2f4
Gvglts5223
LujagrJbehrJklhrQbkiIgvkfgVtbtg
????rgjhvgi
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23232bftkvgsylf/igv/sia1
rhhtOigakbl?25~#
rhhtOigakbl?25~#jibij:I/igv/ji1
/igv/ji15
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??57959>1?26
Qbki@gvg`5rbki2
BrrbyVkzg52;7243?(2;?4.14JkA2;;3.71JA)
WsgiIgvVkzg52;7243?(2;?4.14JkA2;;3.71JA)
QbkiIgvkfgs51Yhtb`Igvkfgs52
_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19??5775231?26
Vtbtg5f`gbl,ignrbigi
BftkvgIgvkfgs52
^hrmklnIgvkfgs52
Dbk`giIgvkfgs5?
VpbrgIgvkfgs5?
Lbjg5igakbl?251(`hfb`thchstigakbl?2)
WWKI52;fag79f51bb1214f5;1gib4gg5ddf41da;Gvglts51
LujagrJbehrJklhrQbkiIgvkfgVtbtg
????rgjhvgi
232;2bftkvgsylf/igv/sia6
rhhtOigakbl?25~#
rhhtOigakbl?25~#jibij:I/igv/ji6
/igv/ji65
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??5795771?26
Qbki@gvg`5rbki2
BrrbyVkzg5;29419?(3.>1NkA;.6>NA)
WsgiIgvVkzg5;29419?(3.>1NkA;.6>NA)
QbkiIgvkfgs51
Yhtb`Igvkfgs52
_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19?25?95661?26
Vtbtg5f`gbl,ignrbigi
BftkvgIgvkfgs52
^hrmklnIgvkfgs52
Dbk`giIgvkfgs5?
VpbrgIgvkfgs5?
Lbjg5igakbl?256(`hfb`thchstigakbl?2)WWKI5i27>;6b25693f463?5b;9i>6a65b9>d6ad>
Gvglts529
LujagrJbehrJklhrQbkiIgvkfgVtbtg
????rgjhvgi
231?2bftkvgsylf/igv/sia9
rhhtOigakbl?25~#
rhhtOigakbl?25~#fbt/prhf/jistbt
_grshlb`ktkgs5]rbki2Z
ji65bftkvgrbki2sia9]2Z
;29419?a`hfmssupgr2.1]1/2Z]XWZ
ji15bftkvg(buth:rgbi:hl`y)rbki2sia6]2Z
2;7243?a`hfmssupgr2.1]1/2Z]XWZ
ji25bftkvgrbki2sia1]2Z
;>7>743a`hfmssupgr2.1]1/2Z]XWZ
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ji?5bftkvgrbki2sia2]2Z
;4213a`hfmssupgr2.1]1/2Z]XWZ
ulusgiigvkfgs50lhlg936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgs
Vgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x???9d>;3
IgvkfgAhhtVtbrtGliA`hfmsKiVystgj
/igv/sib2*1?932;977;;417436@klux
/igv/sib12;974?2;>14667;>4733336@klux
/igv/sib62;>14664164623>22;71>4331@kluxswbp/Vh`brks
/igv/sib9164623>192;9?;;2;27974?36@klux
rhhtOigakbl?25~#diksm/igv/sib
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)52Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl2thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)51
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl1thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)56
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl6thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5t
_brtktkhllujagr(2:9)59
Cgxfhig(typg@th`kstfhigs)5di
Fcblngisystgjtypghdpbrtktkhl9thdi(@kluxrbkibuthigtgft)
Fhjjbli(jdhrcg`p)5w
Ycgpbrtktkhltba`gcbsagglb`tgrgi!
Fb``klnkhft`()thrg:rgbipbrtktkhltba`g.
Vylfklniksms.
rhhtOigakbl?25~#
1. ^g fbl fcgfm tcbt b`` pbrtktkhl klskig /igv/sib ( rhhtiksm ) lhw cbs aggl fhlvgrtgi th
@kluxrbkibuth typg.
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rhhtOigakbl?25~#diksm:`/igv/sib
Iksm/igv/sib512.7NA,129>936493?aytgs
177cgbis,46sgfthrs/trbfm,142?fy`kligrs,thtb`92;96?9?sgfthrs
Wlktssgfthrshd2*721721aytgs
Vgfthrskzg(`hnkfb`/pcyskfb`)5721aytgs/721aytgs
K/Hskzg(jklkjuj/hptkjb`)5721aytgs/721aytgs
Iksmkigltkdkgr5?x???9d>;3
IgvkfgAhhtVtbrtGliA`hfmsKiVystgj
/igv/sib2*1?932;977;;4174di@kluxrbkibuthigtgft
/igv/sib12;974?2;>14667;>47333di@kluxrbkibuthigtgft
/igv/sib62;>14664164623>22;71>43di@kluxrbkibuthigtgft
/igv/sib9164623>192;9?;;2;27974?di@kluxrbkibuthigtgft
rhhtOigakbl?25~#
6. Lhw wg fbl put rhhtiksm th tcg gxkstkln QBKI2 Nrhup. Gbfc pbrtktkhl uligr rhhtiksm
wk`` ag bttbfcgi th gxkstkln vkrtub` pbrtktkhl ( ji igvkfg).
rhhtOigakbl?25~#jibij::bii/igv/ji?/igv/sib2
jibij5biigi/igv/sib2
rhhtOigakbl?25~#jibij::bii/igv/ji2/igv/sib1
jibij5biigi/igv/sib1
rhhtOigakbl?25~#jibij::bii/igv/ji1/igv/sib6
jibij5biigi/igv/sib6
rhhtOigakbl?25~#jibij::bii/igv/ji6/igv/sib9
jibij5biigi/igv/sib9
rhhtOigakbl?25~#
9. Bdtgr b`` pbrtktkhl hd rhhtiksm ehkl tcg QBKI2 nrhup, systgj wk`` stbrt
rgfhvgry/rgsylfcrhlkzbtkhl buthjbtkfb``y. g fbl jhlkthr tcg rgfhvgry prhfgss ay `hhmkln
bt /prhf/jistbt dk`g 5
rhhtOigakbl?25~#fbt/prhf/jistbt
_grshlb`ktkgs5]rbki2Z
ji65bftkvgrbki2sib9]1Zsia9]2Z
;29419?a`hfmssupgr2.1]1/2Z]XWZ
rgsylfIG@B[GI
ji15bftkvgrbki2sib6]1Zsia6]2Z
2;7243?a`hfmssupgr2.1]1/2Z]XWZ
rgsylfIG@B[GI
ji25bftkvgrbki2sib1]1Zsia1]2Z
;>7>743a`hfmssupgr2.1]1/2Z]XWZ
]7>743)dklksc2.2jkl
spggi217344M/sgf
ji?5bftkvgrbki2sib2]1Zsia2]2Z
;4213a`hfmssupgr2.1]1/1Z]WWZ
ulusgiigvkfgs50lhlgi34>15f?2;b>i?54;62?d1;56fi47i?9
Gvglts577
LujagrJbehrJklhrQbkiIgvkfgVtbtg
132?bftkvgsylf/igv/sib2232>2bftkvgsylf/igv/sia2
rhhtOigakbl?25~#jibij:I/igv/ji2
/igv/ji25
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??57956;1?26
Qbki@gvg`5rbki2
BrrbyVkzg5;>7>743(;.62NkA;.;;NA)
WsgiIgvVkzg5;>7>743(;.62NkA;.;;NA)
QbkiIgvkfgs51
Yhtb`Igvkfgs51
_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19?25?45911?26
Vtbtg5f`gbl,ignrbigi,rgfhvgrkln
BftkvgIgvkfgs52
^hrmklnIgvkfgs51
Dbk`giIgvkfgs5?
VpbrgIgvkfgs52
Qgauk`iVtbtus526%fhjp`gtg
Lbjg5igakbl?252(`hfb`thchstigakbl?2)
WWKI54>46221;5a>>44f>g5i21??i775?64bi2f4
Gvglts5263
LujagrJbehrJklhrQbkiIgvkfgVtbtg
131?spbrgrgauk`ikln/igv/sib1
23232bftkvgsylf/igv/sia1
rhhtOigakbl?25~#jibij:I/igv/ji1
/igv/ji15
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??57959>1?26
Qbki@gvg`5rbki2
BrrbyVkzg52;7243?(2;?4.14JkA2;;3.71JA)
WsgiIgvVkzg52;7243?(2;?4.14JkA2;;3.71JA)
QbkiIgvkfgs51
Yhtb`Igvkfgs51_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19?25?451;1?26
Vtbtg5f`gbl,ignrbigi,rgsylfkln(IG@B[GI)
BftkvgIgvkfgs52
7/22/2019 Root Disk Mirroring On Debian Linux
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^hrmklnIgvkfgs51
Dbk`giIgvkfgs5?
VpbrgIgvkfgs52
Lbjg5igakbl?251(`hfb`thchstigakbl?2)
WWKI52;fag79f51bb1214f5;1gib4gg5ddf41da;
Gvglts59
LujagrJbehrJklhrQbkiIgvkfgVtbtg
136?spbrgrgauk`ikln/igv/sib6232;2bftkvgsylf/igv/sia6
rhhtOigakbl?25~#jibij:I/igv/ji6
/igv/ji65
Tgrskhl52.1
FrgbtkhlYkjg5YugVgp19??5795771?26
Qbki@gvg`5rbki2
BrrbyVkzg5;29419?(3.>1NkA;.6>NA)
WsgiIgvVkzg5;29419?(3.>1NkA;.6>NA)
QbkiIgvkfgs51
Yhtb`Igvkfgs51
_grskstglfg5Vupgra`hfmkspgrskstglt
WpibtgYkjg5YugVgp19?25?45611?26
Vtbtg5f`gbl,ignrbigi,rgsylfkln(IG@B[GI)
BftkvgIgvkfgs52
^hrmklnIgvkfgs51
Dbk`giIgvkfgs5?
VpbrgIgvkfgs52
Lbjg5igakbl?256(`hfb`thchstigakbl?2)
WWKI5i27>;6b25693f463?5b;9i>6a65b9>d6ad>
Gvglts523
LujagrJbehrJklhrQbkiIgvkfgVtbtg
139?spbrgrgauk`ikln/igv/sib9
231?2bftkvgsylf/igv/sia9
rhhtOigakbl?25~#
7. ^cgl rgfhvgry/rgsylf prhfgss fhjp`gtgi, ahtc iksms wk`` ag kl sylf stbtg. Lh jhrg
ignrbigi stbtus kl tcg jibij:I hutput 5
rhhtOigakbl?25~#jibij:I/igv/ji?
/igv/ji?5
Tgrskhl52.1
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7/22/2019 Root Disk Mirroring On Debian Linux
19/20
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7/22/2019 Root Disk Mirroring On Debian Linux
20/20
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