more uptime numbers

Joe Barrera (joebar@MICROSOFT.com)
Thu, 19 Jun 1997 22:09:41 -0700


I looked at the uptime numbers for some of the Microsoft mail servers.
The way the restart times are correlated (close in time, but with some
skew) makes me believe that the machines were intentionally rebooted.
For example:

[D:\joebar\vc\uptime] uptime red-28-msg
There are 38627 records in the System event log.
21d 10:53m Tue May 14 22:26:51 1996
36d 3:13m Thu Jun 20 01:40:09 1996
41d 20:48m Wed Jul 31 22:29:05 1996
81d 15:50m Mon Oct 21 14:19:44 1996
21d 6:29m Mon Nov 11 19:48:50 1996
105d 14:56m Tue Feb 25 10:45:43 1997
38d 12:48m Fri Apr 04 23:34:10 1997
34d 23:18m Fri May 09 23:52:57 1997
0:27m Sat May 10 00:20:28 1997
0:36m Sat May 10 00:56:38 1997
0:07m Sat May 10 01:04:18 1997
35d 21:44m Sat Jun 14 22:48:33 1997
0:06m Sat Jun 14 22:54:53 1997
4d 16:05m Thu Jun 19 15:00:07 1997

[D:\joebar\vc\uptime] uptime red-29-msg
There are 24688 records in the System event log.
8d 11:47m Tue May 14 22:26:57 1996
36d 3:13m Thu Jun 20 01:40:43 1996
42d 20:42m Thu Aug 01 22:22:53 1996
3d 14:55m Mon Aug 05 13:18:39 1996
78d 19:37m Wed Oct 23 08:56:19 1996
19d 13:01m Mon Nov 11 20:58:09 1996
112d 21:09m Tue Mar 04 18:07:42 1997
31d 5:26m Fri Apr 04 23:33:42 1997
34d 21:09m Fri May 09 21:43:20 1997
0:38m Fri May 09 22:22:05 1997
0:22m Fri May 09 22:44:22 1997
0:06m Fri May 09 22:50:23 1997
38d 5:16m Tue Jun 17 04:07:06 1997
22:54m Wed Jun 18 03:01:42 1997
1:59m Wed Jun 18 05:00:58 1997
6:51m Wed Jun 18 11:52:14 1997
1d 3:08m Thu Jun 19 15:01:12 1997

Here's the source for the program I used:


- Joe

Joseph S. Barrera III (joebar@microsoft.com)
http://research.microsoft.com/~joebar
Phone, Office: (415) 778-8227; Cellular: (415) 601-3719; Home: (415)
588-4801

begin 600 uptime.c
M(VEN8VQU9&4@/'=I;F1O=W,N:#X-"B-I;F-L=61E(#QS=&1I;RYH/@T*(VEN
M8VQU9&4@/'1I;64N:#X-"B-I;F-L=61E(#QM:7-C<W1R+F@^#0H-"B-P<F%G
M;6$@8V]M;65N="AL:6(L(")M:7-C<W1R(BD-"@T*(V1E9FEN90E"549&15)?
M4TE:10DX,3DR#0H-"G9O:60-"E!R:6YT5&EM941I9F8H#0H@("`@=&EM95]T
M"4QA<W14:6UE+`T*("`@('1I;65?=`E4:&ES5&EM90T*("`@("D-"GL-"B`@
M("!T:6UE7W0)9&EF9CL-"B`@("!I;G0)"61A>7,L(&AO=7)S+"!M:6YU=&5S
M.PT*#0H@("`@:68@*$QA<W14:6UE(#T](#`I#0H)3&%S=%1I;64@/2!4:&ES
M5&EM93L-"@T*("`@(&1I9F8@/2!4:&ES5&EM92`M($QA<W14:6UE.PT*("`@
M(&1A>7,@/2!D:69F+R@R-"HS-C`P*3L-"B`@("!H;W5R<R`]("AD:69F("4@
M*#(T*C,V,#`I*2\S-C`P.PT*("`@(&UI;G5T97,@/2`H9&EF9B`E(#,V,#`I
M+S8P.PT*#0H@("`@:68@*&1A>7,@/B`P*0T*"7!R:6YT9B@B)31D9"(L(&1A
M>7,I.PT*("`@(&5L<V4-"@EP<FEN=&8H(B`@("`@(BD[#0H-"B`@("!P<FEN
M=&8H(B`E,F0Z)3`R9&U<="5S(BP@:&]U<G,L(&UI;G5T97,L(&-T:6UE*"94
M:&ES5&EM92DI.PT*?0T*#0I30T]$10T*;6%I;B@-"B`@("!I;G0)"6%R9V,L
M#0H@("`@8VAA<@DJ*F%R9W8-"B`@("`I#0I[#0H@("`@2$%.1$Q%"6@[#0H@
M("`@3%!35%()0V]M<'5T97([#0H@("`@159%3E1,3T=214-/4D0@*G!E=FQR
M.R`-"B`@("!"651%"6)"=69F97);0E5&1D527U-)6D5=.R`-"B`@("!$5T]2
M1`ED=U)E860L(&1W3F5E9&5D+"!C4F5C;W)D<SL-"B`@("!T:6UE7W0)5&AI
M<U1I;64L($QA<W14:6UE(#T@,#L-"B`@("!,4%-44@E%=F5N=%-O=7)C93L-
M"@T*("`@(&EF("AA<F=C(#X@,2D-"@E#;VUP=71E<B`](&%R9W9;,5T[#0H@
M("`@96QS90T*"4-O;7!U=&5R(#T@3E5,3#L@+R\@;&]C86P@<WES=&5M(`T*
M#0H@("`@+RH@3W!E;B!T:&4@4WES=&5M(&QO9RX@*B\@#0H@("`@:"`]($]P
M96Y%=F5N=$QO9RA#;VUP=71E<BP@(E-Y<W1E;2(I.PT*("`@(&EF("AH(#T]
M($Y53$PI#0H)<F5T=7)N(%!R:6YT3&%S=$5R<F]R*")/<&5N179E;G1,;V<B
M*3L-"B`-"B`@("!I9B`H1V5T3G5M8F5R3V9%=F5N=$QO9U)E8V]R9',H:"P@
M)F-296-O<F1S*2`]/2`P*2`-"@ER971U<FX@4')I;G1,87-T17)R;W(H(D=E
M=$YU;6)E<D]F179E;G1,;V=296-O<F1S(BD[#0H@#0H@("`@<')I;G1F*")4
M:&5R92!A<F4@)60@<F5C;W)D<R!I;B!T:&4@4WES=&5M(&5V96YT(&QO9RY<
M;B(L(&-296-O<F1S*3L@#0H@#0H@("`@+RH@#0H@("`@("H@3W!E;FEN9R!T
M:&4@979E;G0@;&]G('!O<VET:6]N<R!T:&4@9FEL92!P;VEN=&5R(`T*("`@
M("`J(&9O<B!T:&ES(&AA;F1L92!A="!T:&4@8F5G:6YN:6YG(&]F('1H92!L
M;V<N(`T*("`@("`J(`T*("`@("`J(%)E860@<F5C;W)D<R!S97%U96YT:6%L
M;'D@=6YT:6P@=&AE<F4@#0H@("`@("H@87)E(&YO(&UO<F4N(`T*("`@("`J
M+R`-"B`-"B`@("!P979L<B`]("A%5D5.5$Q/1U)%0T]21"`J*2`F8D)U9F9E
M<CL@#0H-"B`@("!W:&EL92`H4F5A9$5V96YT3&]G*&@L("`@("`@("`@("`@
M("`@("\J(&5V96YT(&QO9R!H86YD;&4@*B\@#0H@("`@("`@("`@("`@("`@
M159%3E1,3T=?1D]25T%21%-?4D5!1"!\("`O*B!R96%D<R!F;W)W87)D("`@
M("HO(`T*("`@("`@("`@("`@("`@($5614Y43$]'7U-%455%3E1)04Q?4D5!
M1"P@+RH@<V5Q=65N=&EA;"!R96%D("`J+R`-"B`@("`@("`@("`@("`@("`P
M+"`@("`@("`@("`@("\J(&EG;F]R960@9F]R('-E<75E;G1I86P@<F5A9',@
M*B\@#0H@("`@("`@("`@("`@("`@<&5V;'(L("`@("`@("`O*B!A9&1R97-S
M(&]F(&)U9F9E<B`@("`@("`@("`@("HO(`T*("`@("`@("`@("`@("`@($)5
M1D9%4E]325I%+"`@+RH@<VEZ92!O9B!B=69F97(@("`@("`@("`@("`@("`J
M+R`-"B`@("`@("`@("`@("`@("`F9'=296%D+"`@("`@("\J(&-O=6YT(&]F
M(&)Y=&5S(')E860@("`@("`@("`@*B\@#0H@("`@("`@("`@("`@("`@)F1W
M3F5E9&5D*2D@>R`O*B!B>71E<R!I;B!N97AT(')E8V]R9"`@("`@("`@("HO
M(`T*(`T*("`@("`@("!F;W(@*#MD=U)E860@/B`P.R!D=U)E860@+3T@<&5V
M;'(M/DQE;F=T:"P@<&5V;'(@/2`H159%3E1,3T=214-/4D0@*BD@*"A,4$)9
M5$4I('!E=FQR("L@<&5V;'(M/DQE;F=T:"DI('L-"@T*"2`@("!%=F5N=%-O
M=7)C92`]("A,4%-44BD@*"A,4$)95$4I('!E=FQR("L@<VEZ96]F*$5614Y4
M3$]'4D5#3U)$*2D[#0H@"2`@("!I9B`H<W1R8VUP*$5V96YT4V]U<F-E+"`B
M179E;G1,;V<B*2D-"@D)8V]N=&EN=64[#0H-"@D@("`@5&AI<U1I;64@/2!P
M979L<BT^5&EM94=E;F5R871E9#L-"@D@("`@4')I;G14:6UE1&EF9BA,87-T
M5&EM92P@5&AI<U1I;64I.PT*#0H)("`@($QA<W14:6UE(#T@5&AI<U1I;64[
M#0H@("`@("`@('T@#0H@#0H@("`@("`@('!E=FQR(#T@*$5614Y43$]'4D5#
M3U)$("HI("9B0G5F9F5R.R`-"B`@("!](`T*#0H@("`@5&AI<U1I;64@/2!T
M:6UE*#`I.PT*("`@(%!R:6YT5&EM941I9F8H3&%S=%1I;64L(%1H:7-4:6UE
A*3L-"@T*("`@($-L;W-E179E;G1,;V<H:"D[(`T*?0T*
`
end