Güvenlik ve Gizlilik Temelinde Şirketlere Özel Bulut - CEUR

Güvenlik ve Gizlilik Temelinde ùLUNHWOHUHÖzel Bulut
Depolama Çözümü (Private Cloud Storage)
Ömer Yanar
.XYH\W7UN.DWÕOÕP%DQNDVÕ$ù%LOJL7HNQRORMLOHUL3Uoje Yönetimi ve AR-*(0GUO÷
)HULWSDúD0DK.XOH&DG. Kule Plaza Kat: 9 No: 9 P.K 42060 Selçuklu / KONYA
omeryanar@gmail.com
Özet. 'Q\DJHQHOLQGHYHULPHUNH]OHULQLQJHOLúLPLLQWHUQHWDOW\DSÕVÕQDHULúLPLQ
JQ JHoWLNoH GDKD NROD\ YH XFX] ROPDVÕ PRELO FLKD]ODUÕQ JHOLúLPL YH \D\JÕQ
RODUDN NXOODQÕOPD\D EDúODQPDVÕ NXUXPODUÕ EXOXW DOW\DSÕVÕQD \DWÕUÕP \DSPD\D
]RUODPDNWDGÕU gWH\DQGDQEDúWDEDQNDODUROPDN]HUHGRNPDQODUÕQÕQJYHQ
OL÷LQHYHJL]OLOL÷LQHVRQGHUHFH|QHPYHUHQúLUNHWOHULoLQYHULOHULQoQFNLúL
OHUOHSD\ODúÕOPDVÕE\NVRUXQWHúNLOHWPHNWH bulut çözümlerinden uzak durmaODUÕQD\RODoPDNWDGÕU%XELOGLULGHNXUXPODUÕQYHULOHULQLEDúNDúLUNHWOHUOHSD\
ODúPDN]RUXQGDNDOPDGDQNXUXPEQ\HVLQGHEXOXQDQYHULPHUNH]OHULQGHsakODQDQYHNXUXPXQJYHQOLNGXYDUÕLOHNRUXQDQGRV\DODULoLQúLUNHWH|]HObir buOXWVLVWHPLQLQSULYDWHFORXGNXUXOPDVÕDQODWÕOPDNWDGÕU'RV\DODUÕQVDNODQPDVÕ
\HGHNOHQPHVLYHHULúLOPHVLQGH64/6HUver FileSWUHDPWHNQRORMLVLNXOODQÕOPÕú
WÕU*HOHQHNVHOGRV\DVLVWHPL\HULQHLOLúNLVHOYHUL WDEDQÕNXOODQÕPÕQÕQVHEHSOHUL
ve avantajlaUÕQGDQ EDKVHGLOPLú GRV\D ER\XWODUÕQÕQ DUWPDVÕ\OD ELUOLNWH )LOH6tUHDP WHNQRORMLVLQLQ YHULPOLOL÷LQLQ DUWPDVÕ ]HULQGH GXUXOPXúWXU $\UÕFD GRV\D
ER\XWODUÕQÕQVLVWHPSHUIRUPDQVÕ]HULQGHNLHWNLVLLQFHOHQPLúELUHúLNGH÷HUEH
OLUOHQHUHN GRV\DODUÕQ ER\XWXQD J|UH YHUL WDEDQÕ WDEORVXQGD \D GD )LOHStream
]HULQGH\HUDOPDVÕVD÷ODQDUDNSHUIRUPDQVPDNVLPL]HHGLOPH\HoDOÕúÕOPÕúWÕU
Anahtar Kelimeler: %XOXW%LOLúLP%XOXW'epolama, Cloud Computing, Cloud
Storage, Private Cloud
1
*LULú
*HOLúHQ WHNQRORML LOH JHoPLúWH NXOODQÕODQ EDVÕOÕ ELOJL ND\QDNODUÕ KÕ]OD GLMLWDO RUWDPD
WDúÕQPDNWDGÕU *QP]GH ELOJLVD\DUODU LQVDQODUÕQ LVWHGLNOHUL GRV\DODUD DQÕQGD HULú
PHOHULQL VD÷OD\DQ VDQDO NWSKDQHOHU KDOLQH G|QúPú LQWHUQHWLQ GH \D\JÕQODúPDVÕ
ile dijital ortamdaki bu dosyalara birdHQoRNNLúLQLQ]DPDQYHmekân ED÷ÕPVÕ]HULúL
PLQLQVD÷ODQPDVÕQD\|QHOLNVLVWHPOHUJHOLúWLULOPLúWLU [1].
0HYFXW GXUXP LQFHOHQGL÷LQGH NXUXP LoLQGH oDOÕúDQODU LúOHULQGH JHUHNOL GRV\DODUÕ
kuruma ait RUWDNELUGRV\DVXQXFXVXQGD\DGDLú\HULQGHNXOODQGÕNODUÕELOgisayarlarda
WXWPDNWDGÕUøú\HULQGHEDUÕQGÕUÕODQGRV\DODUDNXUXPJYHQOLNSROLWLNDODUÕJHUH÷LoR÷X
]DPDQGÕúDUÕGDQHULúLPVD÷ODQDPDPDNWDEXGRV\DODUDELUGHQID]ODNLúLQLQHULúLPLV|]
NRQXVX ROGX÷XQGD LVH SD\ODúÕP \HWNLOHQGLUPH YH HULúLP VRUXQX RUWD\D oÕNPDNWDGÕU
(ULúLOHFHNGRV\DVD\ÕVÕDUWWÕ÷ÕQGDVLVWHPLQNHVLQWL\HX÷UDPDGDQYHULPOLúHNLOGHoDOÕú
814
PDVÕEDUÕQGÕUPDVÕQÕIODQGÕUPDHULúLPYH\HWNLOHQGLUPHNRQXODUÕQÕQKHSVLQLNDSVD\DQ
bir \D]ÕOÕPYHGRQDQÕPVRUXQu haline gelmektedir.
%DúWDdosyaODUÕQKHU\HUGHQXODúÕODELOPHLKWL\DFÕROPDN]HUHGRQDQÕPED÷ÕPOÕOÕ
÷ÕQÕQD]DOPDVÕdosya GHSRODPDVRUXQODUÕQÕQD]DOPDVÕ YHULOHULQNÕVDVUHGHGDKDID]OD
NLúL\OH SD\ODúÕODELOPHVL SODWIRUP ED÷ÕPOÕOÕ÷Õ ROPDNVÕ]ÕQ YHULOHUH HULúLOHELOPHVL JLEL
JHUHNVLQLPOHUGHQGROD\Õ dünyaca QO\D]ÕOÕPYHWHNQRORMLILUPDODUÕWDUDIÕQGDQdosya
SD\ODúÕPÕNRQXVXQGDoDOÕúPDODU\DSÕOPÕúWÕU%XoDOÕúPDODUVRQXFXortaya oÕNDQuygulamalar, VHUYLVRODUDNVXQXODQODUYHX\JXODPDRODUDNGD÷ÕWÕODQODUROPDN]HUHEDúOÕN
DOWÕQGDLQFHOHQHELOLU
Servis olarak sunulan Dropbox, Google Drive, Apple iCloud, Microsoft OneDrive
gibi uygulamalar kritik verilerin NXUXPGÕúÕVXQXFXODUGDWXWXOPDVÕJHUHNOLOL÷LQGHQYHUL
JYHQOL÷LQLWHKGLWHWPHNWHúLUNHWLoLNULWLN YHULOHULQVDNODQPDVÕ QRNWDVÕQGDXOXVDO YH
kurXPVDO ULVNOHU WDúÕPDNWDGÕU $PHULND %LUOHúLN 'HYOHWOHUL 8OXVDO *YHQOLN $MDQVÕ
16$WDUDIÕQGDQ\UWOHQ35,60SURMHVLQLQ\ÕOÕQGDPHG\D\DVÕ]GÕUÕOPDVÕLOH
ELUOLNWHEXHQGLúHOHUL\LFHDUWPÕúWÕU [2]%Xo|]POHUGRV\DODUÕQELUVXQXFXGDWXWXOXS
IDUNOÕSODWIRUPODUGDQXODúÕODELOPHVLQLYHEXGRV\DODUÕQSD\ODúÕODELOPHVLQLVD÷ODPDNWD
ROXSELUOLPLWHNDGDUFUHWVL]RODUDNVXQXOPDNWDOLPLWVRQUDVÕKL]PHWOHULVHFUHWOHQ
dirilmektedir.
dR÷XQOXNOD NLúLVHO YH\D NoN LúOHWPHOHULQ NXOODQÕPÕ LoLQ X\JXQ RODQ EX KL]PHtlerde, úLUNHWRUJDQL]DV\RQD÷DoODUÕQÕQEXVLVWHPOHUHHQWHJUHROPDVÕGHSDUWPDQUROYH
NLúL\|QHWLPLQLQHQWHJUHELUúHNLOGH\DSÕODELOPHVLPPNQGH÷LOGLU.DSDVLWHDUWÕUÕPÕ
V|]NRQXVXROGX÷XQGD\ÕOOÕNOLVDQVFUHWOHULRUWD\DoÕNPDNWDYDURODQVLVWHPOHUHenWHJUDV\RQNÕVÕWODUÕYHPDOL\HWOHULLOHNDUúÕNDUúÕ\DNDOÕQPDNWDGÕU [3]6LVWHPVUHNOLOL÷L
DGÕQDKL]PHWYHUPH\LNHVPHULVNOHULGROD\ÕVÕLOHKL]PHWNHVLQWLVLULVNLGHWDúÕPDNWDGÕU
8\JXODPDRODUDNGD÷ÕWÕODQsistemlere örnek olarak ownCloud ve SeaFile verilebiOLU%XX\JXODPDODUDoÕNND\QDNNRGOXRODUDNGD÷ÕWÕOÕSNXUXPODUÕQNHQGLYHULPHUNH]
OHULQFHNXOODQÕOPDVÕQÕVD÷OD\DUDNJYHQOLNVRUXQXQXo|]PHNOHELUOLNWHGRV\DODUÕher
]DPDQGRV\DVLVWHPLQGHWXWPDODUÕVHEHEL\OHLúOHPVHOEWQO÷VD÷ODPDYH\HGHNOH
me iúOHPOHUL]RUODúPDNWDGÕU$\UÕFDELOGLULQLQ3. E|OPQGHEDKVHGLOHFH÷LJLELNoN
boyutlu dosyaODUÕQ 1 M% DOWÕ GRV\D VLVWHPLQGH WXWXOPDVÕ SHUIRUPDQV VRUXQXQD GD
\RODoPDNWDGÕU [4].
Bu bildiride GRNPDQ JYHQOL÷L YH JL]OLOL÷LQL |Q SODQGD WXWDQ banka ve benzeri
E\N |OoHNOL NXUXPODUÕQ JQON Lú KDyDWÕQGD NXOODQGÕ÷Õ GRNPDQODUÕQÕ )LOH6WUHDP
teknolojisini kullanarak kurum EQ\HVLQGHQDVÕO VDNOD\DELOHFH÷LDQODWÕOPDNWDGÕUMaOL\HWOHULQ D]DOWÕOPDVÕ LoLQ GRNPDQODUÕQ WXWXODFD÷Õ GRV\D VXQXFXVXQXQ KHU oDOÕúPD
E|OJHVLQGH D\UÕ D\UÕ EXOXQPDVÕ \HULQH PHUNH]L WHN ELU \HUGH EXOXQPDVÕ VD÷ODQDUDN
GRQDQÕP JLGHUOHULQLQ D]DOWÕOPDVÕQÕQ \DQÕQGD VXQXFX EDNÕPÕ \HGHNOHPH YE LúOHULQ
GDKDNROD\\DSÕODELOPHVL hedeflenmektedir.
2
FileStream Teknolojisi
FileStream, veri taEDQÕRODUDN0LFURVRIW64/6HUYHUNXOODQDQX\JXODPDODUÕQ, doküPDQYHUHVLPGRV\DODUÕJLEL\DSÕVDOROPD\DQYHULOHULdosya sistemi ]HULQGHWXWPDVÕQÕ
VD÷OD\DQ WHNQRORMLGLU [5] %|\OHFH X\JXODPDODU KHP LOLúNLVHO YHUL WDEDQÕ sistemleri
815
WDUDIÕQGDQ VD÷ODQDQ LúOHPVHO WXWDUOÕOÕN WUDQVDFWLRQDO FRQVLVWHQF\ KHP GH GRV\D VLV
WHPOHUL WDUDIÕQGDQ VD÷ODQDQ \NVHN SHUIRUPDQVOÕ YHUL DNÕúÕ VWUHDPLQJ LPNDQODUÕQD
D\QÕDQGDNDYXúPXúROXUODU [6].
Veri depolama uyJXODPDODUÕQDELU\D]ÕOÕPVRUXQXRODUDN\DNODúÕOGÕ÷ÕQGD, ilk ve en
|QHPOLNRQXYHULOHULQQHUHGHWXWXODFD÷ÕGÕUøONDNODJHOHQo|]POHUGRV\DODUÕQLOLúNL
sel YHUL WDEDQÕ WDEORODUÕ LoHULVLQGH \D GD GRV\D VLVWHPL ]HULQGH EXOXQGXUXOPDVÕGÕU
Günümüzde birçok YHULWDEDQÕ sistemi, BLOB (binary large objectRODUDNDGODQGÕUÕ
ODQWLSWHYHULWXWXOPDVÕQDLPNDQYHUPHNWHGLUDQFDNGRV\DER\XWXE\G÷QGHGRV\D
VLVWHPOHULQH NÕ\DVOD FLGGL SHUIRUPDQV VRUXQODUÕQD \RO DoPDNWDGÕU [7]. Öte yandan
genel (public cloud) ya da özel (private cloud) fark etmeksizin bütün veri depolama
o|]POHULNXOODQÕFÕ\DVLVWHPGHWXWXODQGRV\DODUKDNNÕQGDELUWDNÕPHNELOJLOHUVXQDU
ODU2OXúWXUXOPDWDULKLROXúWXUDQNXOODQÕFÕVRQGH÷LúWLULOPHWDULKLJLEL\DSÕVDOYHULOHU
LOLúNLVHO YHUL WDEDQÕ WDEORODUÕQGD DVÕO YHUL\L LoHUHQ YH \DSÕVDO ROPD\an dosyalar ise
performans sorunundan ötürü JHQHOOLNOHLOLúNLOLROGXNODUÕ \DSÕVDOYHULOHUGHQD\UÕROD
UDNGRV\DVLVWHPOHULQGHWXWXOXU$QFDN\D\JÕQRODUDNNXOODQÕODQEX\DNODúÕPLOLúNLVHO
YHUL WDEDQÕ VLVWHPOHULQLQ VD÷ODGÕ÷Õ ELUoRN DYDQWDMÕQ ND\EHGLOPHVLQH \RO DoPDNWDGÕU
'RV\DODUÕQ YHULWDEDQÕ WDEORVX\HULQHGRV\DVLVWHPLQGHVDNODQPDVÕNÕVDFD$&,'ROD
UDNDGODQGÕUÕODQYHYHULWDEDQÕ LúOHPOHULQLQGR÷UXYHJYHQLOLUELoLPGHLúOHPHDOÕQDUDN
VRQODQGÕUÕOGÕ÷ÕQÕJDUDQWLHGHQVLVWHPLVHNWH\H X÷UDWPDNWDGÕU [8] çünkü dosya sistemi
YHULWDEDQÕLúOHPVHOEWQONNRQWURODOWÕQGDGH÷LOGLU.
9HULOHULQDUúLYOHQPHVL\HGHNOHQPHVLYHLKWL\DoGXUXPXQGD\HGHNOHUGHQG|QOPHVL
LVH D\UÕFD HOH DOÕQPDVÕ JHUHNHQ ELU VRUXQGXU 9HULOHULQ WDEOR LoHULVLQGH WXWXOPDVÕ KD
linde, YHUL WDEDQÕQÕQ yedeklenmesi bu sorunun çözümünü ROGXNoD NROD\ODúWÕUPDNWD
GÕU]LUD\D\JÕQRODUDNNXOODQÕODQELUoRNYHULWDEDQÕ sistemi otomatik yedekleme özelOL÷LQH VDKLSWLU Üstelik KHP \HGHNOHPH KHP GH \HGHNWHQ JHUL G|QPH LúOHPL GH \LQH
\DSÕVDO EWQON LoHULVLQGH VD÷ODQGÕ÷ÕQGDQ YHULOHULQ VD÷OÕNOÕ ELU ELoLPGH WXWXOGX÷X
JDUDQWLDOWÕQDDOÕQPDNWDGÕU$QFDN\XNDUÕGDGDEDKVHGLOGL÷LJLEL\D\JÕQRODUDNNXOOD
QÕODQ \|QWHPGH GRV\DODUOD LOJLOL \DSÕVDO YHULOHU YHUL WDEDQÕQGD WXWXOXUNHQ GRV\DODUÕQ
kendisi dosya sistemlerinde tXWXOPDNWDGÕU'ROD\ÕVÕ\OD\HGHNOHPHLúOHPLYHULWDEDQÕ
QÕQ \DQÕQGDGRV\DVLVWHPLQLQGH\HGH÷LQLDOPD\ÕJHUHNWLUPHNWHEXLúOHPOHU\DSÕOÕUNHQ
LNLVLVWHPDUDVÕQGDVHQNURQL]DV\RQXQER]XOPDGÕ÷ÕQGDQHPLQROXQPDVÕJHUHNPHNWHGLU
Bu zorunluluk neticesinde ya yedeNOHPHYH\HGHNWHQG|QPHLúOHPOHULNDUPDúÕNSUR
VHGUOHUGHQROXúPDNWD\DGDEXLúOHPOHUHVQDVÕQGDVLVWHPHHULúLPGXUGXUXOPDNWDGÕU
)LOH6WUHDPWHNQRORMLVLWDPRODUDNEXVRUXQDRGDNODQPDNWDGÕUYHKLEULWELUo|]P
VXQPDNWDGÕU)LOH6WUHDPile %/2%RODUDNWDQÕPODQPÕúELUYHULWDEDQÕNRORQXQDRNX
PD\D]PDLúOHPOHULJHUoHNWHWDEOR]HULQGHGH÷LOGRV\DVLVWHPL]HULQGHJHUoHNOHúWL
ULOPHNWHGLU7DEORNRORQXQGDLVHEXGRV\DQÕQ\HULQLJ|VWHUHQELULúDUHWoLWXWXOPDNWD
GÕUgWH\DQGDQWPRNXPD\D]PDLúOHPOHUL\LQHYHUL WDEDQÕVXQXFXVXWDUDIÕQGDQ\D
SÕOGÕ÷ÕLoLQLúOHPVHOEWQONVD÷ODQPDNWD YHVLVWHPLQ$&,'|]HOOL÷LNRUXQPDNWDGÕU.
FileStream içeren bir YHULWDEDQÕ \HGHNOHQGL÷LQGHVLVWHPRWRPDWLNRODUDNLOJLOLGRV\D
VLVWHPLQLGH\HGHNOHPHNWH\HGHNWHQJHULG|QPHLKWL\DFÕ GR÷GX÷XQGDHNVWUDGDQVHQN
URQL]DV\RQNRQWUROLKWL\DFÕQÕRUWDGDQNDOGÕUPDNWDGÕU )LOH6WUHDPWHNQRORMLVLQLQ\DSÕ
VÕWHPHORODUDNùHNLO 1’deki gibi gösterilebilir.
816
ùHNLO 1. FileStream <DSÕVÕ
Özetlemek gerekirse, FileStream WDEORODUÕQGD veri NRORQGD GH÷LO dosya sisteminde
tutulur. Ancak yine de YHULWDEDQÕWDUDIÕQGDQVD÷ODQDQLúOHPVHOEWQlük kontrolündedir.
3
Veri Modeli
Verilerin tablo kolonunda ya da FileStream RODUDN GRV\D VLVWHPLQGH WXWXOPDVÕQÕQ
FLGGLSHUIRUPDQV IDUNODUÕQD \RODoDELOHFH÷LQGHQ|QFHNLE|OPGHEDKVHGLOPLúWLU $Q
FDNEXSHUIRUPDQVIDUNÕVLVWHPGH\HUDODFDNRODQGRV\DER\XWODUÕ\OD\DNÕQGDQLOLúNL
lidir. FileSWUHDPWHNQRORMLVLQLQNXOODQÕOPDVÕ, veri boyutu ortalama olarak 1 MB üzeULQGHROGX÷XYH doküman okuma KÕ]ÕQÕQ\D]PDKÕ]ÕQGDQGDKD|QHPOLROGX÷Xsistemlerde önerilmektedir [9] %X QHGHQOH GRV\D ER\XWODUÕQÕQ VLVWHP RNXPD YH \D]PD
KÕ]ÕQÕ QH|OoGHHWNLOH\HFH÷LQLJ|UPHNDPDFÕ\OD IDUNOÕER\XWODUGDGRsyalarla okuma
ve yazma testleri \DSÕOPÕúWÕU0XOWL-thread bir uygulama ile her biri 4 çekirdekli olmak üzere 5 IDUNOÕ LVWHPci bilgisayardan, 16 çekirdekli bir veri WDEDQÕ VXQXFXVXQD
EHOLUOHQHQ GH÷LúLN ER\XWODUGDNL dokümanlar D\QÕ HULúLP \|QWHPOHUL\OH okXQPXú ve
\D]ÕOPÕúWÕU +HU ELU LVWHPFLGH WKUHDG ROPDN ]HUH WRSODPGD WKUHDG oDOÕúWÕUÕO
PÕúWÕU7HVWOHUtoplam 5 milyon doküman ve 2 TB boyutunda veri içeren bir veri tabaQÕ]HULQGH\DSÕOPÕú ROXSYHULWDEDQÕQGDNLNXOODQÕODELOLUWRSODPGLVNDODQÕ7% boyuWXQGDGÕU
3.1
Tablo kolonu üzerinde BLOB
9HULOHULQ WDEOR VWXQX ]HULQGH %/2% RODUDN WXWXOPDVÕQÕQ VRQXoODUÕ Tablo 1’de göUOPHNWHGLU+HPRNXPDKHPGH\D]PDKÕ]ODUÕQÕQGRV\DER\XWXQXQDUWPDVÕ\ODD]DO
GÕ÷ÕJ|]OHQPLúWLU%XVRQXoODUGDQKDUHNHWOHE\NER\XWOX\DSÕVDOROPD\DQYHULOHULQ
YHULWDEDQÕWDEORODUÕQGDVDNODQPDVÕQÕQSHUIRUPDQVDoÕVÕQGDQ \DQOÕúELUWHUFLKRODFD÷Õ
VRQXFXQDYDUÕODELOLU
817
Dosya Boyutu
(KB)
100
500
750
1000
1500
2000
5000
'RV\D6D\ÕVÕ
(adet)
7180
1348
820
586
351
235
83
Okuma
(MB/s)
718
674
615
586
527
469
415
Yazma
(MB/s)
605
635
586
439
439
371
391
Tablo 1. Tablo kolonu üzerinde BLOB
3.2
FileStream Tablosu
'RV\DODUÕQ )LOH6WUHDP WHNQRORMLVL LOH GRV\D VLVWHPLQGH WXWXOPDVÕQÕQ VRQXoODUÕ 7DElo
¶GHYHULOPLúWLU7DEORNRORQXQGD%/2%RODUDNWXWPDQÕQDNVLQH)LOH6WUHDPLOHRNX
PDYH\D]PDSHUIRUPDQVÕQÕQGRV\DER\XWXQXQDUWPDVÕ\ODDUWWÕ÷ÕJ|]OHQPLúWLU Ancak
EXDUWÕúDUD÷PHQ)LOH6WUHDP0%DOWÕQGDNLGRV\DODUGDKDOHQGDKD\DYDúNDOPDNWDGÕU
Dosya Boyutu
(KB)
100
500
750
1000
1500
2000
5000
'RV\D6D\ÕVÕ
(adet)
3130
948
723
576
430
332
166
Okuma
(MB/s)
313
474
542
576
645
664
830
Yazma
(MB/s)
273
293
330
508
542
547
659
Tablo 2. FileStream Tablosu
3.3
Hibrit Model
<XNDUÕGDNLWDEORODUGDQJ|UOHFH÷L]HUHküçük boyutlu dosyalarda 1. yöntem, büyük
boyutlu dosyalarda 2. yöntem daha uygun görünmektedir. 'RV\DODUÕQ NXOODQÕFÕODU
WDUDIÕQGDQ KHUKDQJL ELU DOW OLPLW ROPDGDQ \NOHQHELOHFH÷L ELU EXOXW GHSRODPD o|]
münde, RUWDODPD GRV\D ER\XWXQXQ QH RODFD÷ÕQÕ WDKPLQ HWPHN oRN RODQDNOÕ GH÷LOGLU
øúWHEX\]GHQKHULNLVLVWHPLQGHDYDQWDMÕQÕNXOODQPDN]HUHKLEULWELUPRGHOkullaQÕOPDVÕGDKDX\JXQJ|UQPHNWHGLU. %XPRGHOHJ|UHGRV\DODUER\XWODUÕQDED÷OÕRODUDN
YHULWDEDQÕQGD \DGDGRV\DVLVWHPLQGHWXWXOPDNWDGÕU'ROD\ÕVÕ\ODEXD\UÕPÕ yapabilPHNLoLQELUHúLNGH÷HUHLKWL\DoYDUGÕU ùHNLO 2’de her iki yöntemin okuma ve yazma
KÕ]ODUÕ NDUúÕODúWÕUÕOPDNWDGÕU %XUDGDQ GD J|UOHELOHFH÷L JLEL 0% GRV\D ER\XWXQGD
her iki yönteminde SHUIRUPDQVÕ\DNODúÕNRODUDND\QÕROPDNWDGÕU
818
ùHNLO 2. 2NXPDYH<D]PD+Õ]ODUÕQÕQ'RV\D%R\XWXQD*|UH'H÷LúLPL
%XUDGDQKDUHNHWOH0%HúLNGH÷HUVHoLOHUHNEXGH÷HULQDOWÕQGDNLGRV\DODUGR÷UXGDQ
YHULWDEDQÕNRORQXQGDVWQGHNLGRV\DODU)LOH6WUHDPRODUDNGRV\DVLVWHPLQGHWXWXOD
FDN úHNLOGH ELU PRGHO JHOLúWLUiOPLúWLU %X PRGHO KHU ELU GRV\DQÕQ IDUNOÕ YHUVL\RQODUÕ
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E\N ER\XWOX GRV\DODUÕQ GRV\D VLVWHPLQGH WXWXOPDVÕ VD÷ODQPÕú KHP GH LúOHPVHO
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5
Kaynakça
1. White, C.: Consolidating, Accessing, and Analyzing Unstructured Data. Business Intelligence Network (2005)
2. Lee, T.B.: Here’s everything we know about PRISM to date
http://www.washingtonpost.com/blogs/wonkblog/wp/2013/06/12/heres-everything-weknow-about-prism-to-date/
3. Fabian K.: Cloud Services Review
http://cloud-services-review.toptenreviews.com/
4. $]HPRYLü, J.: Varbinary vs. Filestream and other BLOB issues
http://technet.microsoft.com/en-us/library/bb895234.aspx
5. Filestream Overview, http://technet.microsoft.com/tr-tr/library/bb933993(v=sql.105).aspx
6. Sebastian J., Aelterman S.: The Art of SQL Server FILESTREAM. DBA Handbooks,
Simple Talk Publishing (2012)
7. Sears R., Ingen C.V., Gray J.: To BLOB or Not To BLOB: Large Object Storage in a Database or a Filesystem. Technical Report, Microsoft Research, University of California at
Berkeley (2006), http://research.microsoft.com/apps/pubs/?id=64525
8. Ramakrishnan R., Gehrke J.: Database Management Systems, McGraw-Hill (2002)
9. Shanmugam B.: Using SQL Server FILESTREAM to store BLOBs. White Paper,
http://www.infosys.com/microsoft/resource-center/Documents/SQLServerFILESTREAM-BLOBs.pdf
820

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