Microsoft SQL Server IO Internals

8/17/2019 Microsoft SQL Server IO Internals

1/24

MICROSOFT SQL SERVERDATABASE ENGINE I/O

by Bob Dorr, Microsoft SQL Server ri!ci"#e Esc$#$tio! E!%i!eer, &''( ) rese!t

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2/24

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4/24

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5/24

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7/24

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8/24

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10/24

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11/24

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12/24

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13/24

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15/24

REFERENCES


16/24

Overvie7

SQL Server Always On2tt"+//7775icrosoftco5/s@#/$#7$yso!

SQL Server I/O Basics Chapter 1

2tt"+//7775icrosoftco5/tec2!et/"r

o0tec2!o#/s@#/-.../5$i!t$i!/s@#IOb$sics5s"

SQL Server I/O Basics Chapter 2tt + 7775icrosoftco5 tec2!et r

http://www.microsoft.com/sql/alwaysonhttp://www.microsoft.com/sql/alwaysonhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2005/iobasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2005/iobasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/technet/prodtechnol/sql/2000/maintain/sqlIObasics.mspxhttp://www.microsoft.com/sql/alwaysonhttp://www.microsoft.com/sql/alwayson


17/24

F*!0$5e!t$#s $!0 Re@*ire5e!ts

;B-.K 8SQL Server ., SQL Server -... $!0SQL Server -..K #o%%i!% $!0 0$t$ sto

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Microsoft SQL Server I/O s*bsyste5 re@*ire5e!ts for t2ete5"0b 0$t$b$se

;B-&( 8SQL Server 0$t$b$ses !ot s* orte0

http://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/kb/231347/en-ushttp://support.microsoft.com/kb/231347/en-ushttp://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/?kbid=917047http://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-ushttp://support.microsoft.com/kb/230785/en-us


18/24

S*bsyste5s

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http://support.microsoft.com/default.aspx?scid=kb;en-us;917043&sd=rss&spid=2852http://support.microsoft.com/default.aspx?scid=kb;en-us;917043&sd=rss&spid=2852http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;234656http://support.microsoft.com/kb/46091/en-ushttp://support.microsoft.com/kb/86903/en-ushttp://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;304261http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;304261http://support.microsoft.com/kb/910716/http://support.microsoft.com/kb/910716/http://download.microsoft.com/download/4/7/a/original/HYPERLINK%20%22http:/support.microsoft.com/kb/833770/en-ushttp://download.microsoft.com/download/4/7/a/original/HYPERLINK%20%22http:/support.microsoft.com/kb/833770/en-ushttp://download.microsoft.com/download/4/7/a/original/HYPERLINK%20%22http:/support.microsoft.com/kb/833770/en-ushttp://download.microsoft.com/download/4/7/a/original/HYPERLINK%20%22http:/support.microsoft.com/kb/833770/en-ushttp://download.microsoft.com/download/4/7/a/original/HYPERLINK%20%22http:/support.microsoft.com/kb/833770/en-ushttp://support.microsoft.com/kb/910716/http://support.microsoft.com/kb/910716/http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;304261http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;304261http://support.microsoft.com/kb/86903/en-ushttp://support.microsoft.com/kb/46091/en-ushttp://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;234656http://support.microsoft.com/default.aspx?scid=kb;en-us;917043&sd=rss&spid=2852http://support.microsoft.com/default.aspx?scid=kb;en-us;917043&sd=rss&spid=2852


19/24

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http://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/PhysDBStor.dochttp://support.microsoft.com/kb/298402/en-ushttp://support.microsoft.com/kb/78363/en-ushttp://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspxhttp://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/DBM_Best_Pract.dochttp://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/DBM_Best_Pract.dochttp://support.microsoft.com/Default.aspx?kbid=910378http://msdn2.microsoft.com/en-us/library/ms190257(SQL.90).aspxhttp://msdn2.microsoft.com/en-us/library/ms190257(SQL.90).aspxhttp://support.microsoft.com/default.aspx?scid=kb;en-us;156932http://support.microsoft.com/default.aspx?scid=kb;en-us;156932http://support.microsoft.com/default.aspx?scid=kb;en-us;156932http://support.microsoft.com/default.aspx?scid=kb;en-us;156932http://msdn2.microsoft.com/en-us/library/ms190257(SQL.90).aspxhttp://msdn2.microsoft.com/en-us/library/ms190257(SQL.90).aspxhttp://support.microsoft.com/Default.aspx?kbid=910378http://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/DBM_Best_Pract.dochttp://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/DBM_Best_Pract.dochttp://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspxhttp://support.microsoft.com/kb/78363/en-ushttp://support.microsoft.com/kb/298402/en-ushttp://download.microsoft.com/download/4/f/8/4f8f2dc9-a9a7-4b68-98cb-163482c95e0b/PhysDBStor.doc


20/24

Di$%!ostics

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http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;826433http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;826433http://support.microsoft.com/kb/897284/en-ushttp://support.microsoft.com/kb/897284/en-ushttp://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;828339http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;828339http://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/815436/en-ushttp://support.microsoft.com/kb/815436/en-ushttp://support.microsoft.com/kb/815436/en-ushttp://support.microsoft.com/kb/815436/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/kb/167711/en-ushttp://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;828339http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;828339http://support.microsoft.com/kb/897284/en-ushttp://support.microsoft.com/kb/897284/en-ushttp://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;826433http://support.microsoft.com/default.aspx?scid=KB;%5BLN%5D;826433


21/24

Certic$tio! o#icy

;B'&'(K8Microsoft 0oes !ot certify t2$t t2ir08"$rty "ro0*cts 7i## 7or6 7it2 Microsoft SQL

Server ;B(&' 8

Overvie7 of t2e Microsoft t2ir08"$rty stor$%e soft7$re so#*tio!s s*""ort "o#icy

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http://support.microsoft.com/default.aspx?scid=kb;EN-US;913945http://support.microsoft.com/default.aspx?scid=kb;EN-US;913945http://support.microsoft.com/default.aspx?scid=kb;EN-US;913945http://support.microsoft.com/kb/841696/en-ushttp://support.microsoft.com/kb/841696/en-ushttp://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://download.microsoft.com/download/4/7/a/original/support.microsoft.com/kb/q231619/http://support.microsoft.com/kb/841696/en-ushttp://support.microsoft.com/kb/841696/en-ushttp://support.microsoft.com/default.aspx?scid=kb;EN-US;913945http://support.microsoft.com/default.aspx?scid=kb;EN-US;913945http://support.microsoft.com/default.aspx?scid=kb;EN-US;913945


22/24

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23/24

B#o% Co!te!t

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!n#erstan#in S LIOSIM Out ut

http://blogs.msdn.com/psssql/archive/2007/02/21/sql-server-urban-legends-discussed.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/11/how-it-works-sql-server-checkpoint-flushcache-outstanding-i-o-target.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/08/how-it-works-sql-server-page-allocations.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/24/how-it-works-shapshot-database-replica-dirty-page-copy-behavior-newpage.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/18/how-it-works-sql-server-2005-i-o-affinity-and-numa-don-t-always-mix.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/03/how-it-works-debugging-sql-server-stalled-or-stuck-i-o-problems-root-cause.aspxhttp://blogs.msdn.com/psssql/archive/2008/02/07/how-it-works-sql-server-2005-database-snapshots-replica.aspxhttp://blogs.msdn.com/psssql/archive/2008/01/15/how-it-works-file-stream-the-before-and-after-image-of-a-file.aspxhttp://blogs.msdn.com/psssql/archive/2008/12/19/using-sqliosim-to-diagnose-sql-server-reported-checksum-error-824-823-failures.aspxhttp://blogs.msdn.com/psssql/archive/2008/12/19/using-sqliosim-to-diagnose-sql-server-reported-checksum-error-824-823-failures.aspxhttp://support.microsoft.com/kb/231619http://blogs.msdn.com/psssql/archive/2008/11/24/should-i-run-sqliosim-an-e-mail-follow-up-from-sql-pass-2008.aspxhttp://blogs.msdn.com/psssql/archive/2006/11/27/what-do-i-need-to-know-about-sql-server-database-engine-i-o.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/05/sqliosim-is-not-an-i-o-performance-tuning-tool.aspxhttp://blogs.msdn.com/psssql/archive/2008/11/12/how-it-works-sqliosim-running-average-target-duration-discarded-buffers.aspxhttp://blogs.msdn.com/psssql/archive/2008/08/19/how-it-works-sqliosim-audit-users-and-ini-control-file-sections-with-user-count-options.aspxhttp://blogs.msdn.com/psssql/archive/2008/08/19/how-it-works-sqliosim-audit-users-and-ini-control-file-sections-with-user-count-options.aspxhttp://blogs.msdn.com/psssql/archive/2008/08/19/how-it-works-sqliosim-audit-users-and-ini-control-file-sections-with-user-count-options.aspxhttp://blogs.msdn.com/psssql/archive/2008/08/19/how-it-works-sqliosim-audit-users-and-ini-control-file-sections-with-user-count-options.aspxhttp://blogs.msdn.com/psssql/archive/2008/11/12/how-it-works-sqliosim-running-average-target-duration-discarded-buffers.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/05/sqliosim-is-not-an-i-o-performance-tuning-tool.aspxhttp://blogs.msdn.com/psssql/archive/2006/11/27/what-do-i-need-to-know-about-sql-server-database-engine-i-o.aspxhttp://blogs.msdn.com/psssql/archive/2008/11/24/should-i-run-sqliosim-an-e-mail-follow-up-from-sql-pass-2008.aspxhttp://support.microsoft.com/kb/231619http://blogs.msdn.com/psssql/archive/2008/12/19/using-sqliosim-to-diagnose-sql-server-reported-checksum-error-824-823-failures.aspxhttp://blogs.msdn.com/psssql/archive/2008/12/19/using-sqliosim-to-diagnose-sql-server-reported-checksum-error-824-823-failures.aspxhttp://blogs.msdn.com/psssql/archive/2008/01/15/how-it-works-file-stream-the-before-and-after-image-of-a-file.aspxhttp://blogs.msdn.com/psssql/archive/2008/02/07/how-it-works-sql-server-2005-database-snapshots-replica.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/03/how-it-works-debugging-sql-server-stalled-or-stuck-i-o-problems-root-cause.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/18/how-it-works-sql-server-2005-i-o-affinity-and-numa-don-t-always-mix.aspxhttp://blogs.msdn.com/psssql/archive/2008/03/24/how-it-works-shapshot-database-replica-dirty-page-copy-behavior-newpage.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/08/how-it-works-sql-server-page-allocations.aspxhttp://blogs.msdn.com/psssql/archive/2008/04/11/how-it-works-sql-server-checkpoint-flushcache-outstanding-i-o-target.aspxhttp://blogs.msdn.com/psssql/archive/2007/02/21/sql-server-urban-legends-discussed.aspx


24/24

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