80 lines
3.6 KiB
Plaintext
80 lines
3.6 KiB
Plaintext
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The programs in this dir take a list of branch DCs and a list of Hub DCs and construct
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a hub and spoke topology in which the list of branch DCs are balanced across the Hub DCs.
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If redundancy parameters are specified for either the hub or branches then mkhubbchtop
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will create multiple connections between a branch and the hubs. The replication
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schedules will be constructed in a staggered manner so that each replication interval
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on the branch will go to successive Hub DCs. Extensive help is provided in both
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mkhubbchtop.cmd and mkdsx.cmd.
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File List:
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README.TXT This file
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topo.dat A sample topology input file
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mkhubbchtop.cmd Perl Program that reads the topology file and creates a connection data file.
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mkdsx.dat sample output from run of mkhubbchtop on topo.dat
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mkdsx.cmd Perl program that reads a connection data file and invokes mkdsxe
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mkdsxe.exe Program that creates/update/dumps/deletes DC connection objects. Built for Win2K.
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mkdsx.h Header for mkdsxe
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mkdsxe.cxx Source for mkdsxe
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sources build script for Win2K build environment
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perl.exe perl interpreter.
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Revison History:
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[davidor] 8/12/00 - added /debug and /auto_cleanup.
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[davidor] 9/4/00 - fixed schedules so they are staggered accross the hours of the repl interval.
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- added /avglinkbw nnn
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# This is an estimate of the average link bandwidth in KB/Sec units
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# available for replication. E.g. If the raw link speed is
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# 64k bits/sec and you estimate that only 50% of this is
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# available for use then avglinkbw = 0.5 * (64kb / 8 bits/byte).
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# From this and the number of hubs, number of branches and the
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# replication interval we calculate the maximum bandwidth-limited
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# data payload that can be shipped from the branch to the hub. If
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# this is exceeded replication will run over into the next scheduled hour.
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[davidor] 9/17/00 - added /schedmask and /schedoverride to mkhubbchtop.cmd and mkdsx.cmd
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Schedmask and schedoverride data are formatted as a pair of ascii hex digits
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for each byte in the 7x24 schedule array with byte 0 corresponding to day 1 hour 0.
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For each connection the 7x24 result schedule is formed using the schedule parameter
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and then the schedule mask is applied (each bit set in the schedule mask
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clears the corresponding bit in the result schedule). Finally the schedule override
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is applied with a logical OR of the override schedule to the result schedule.
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Schedmask and schedoverride can have embedded whitespace chars (including cr/lf)
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which are deleted or be a single string of 336 (7*24*2) hex digits. For example:
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FF0000000000 000000000000 000000000000 000000000000
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FF0000000000 FFFFFFFFFF00 000000000000 000000000000
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FF0000000000 FFFFFFFFFF00 000000000000 000000000000
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FF0000000000 FFFFFFFFFF00 000000000000 000000000000
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FF0000000000 FFFFFFFFFF00 000000000000 000000000000
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FF0000000000 000000000000 000000000000 000000000000
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FF0000000000 000000000000 000000000000 000000000000
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[davidor] 10/05/00 - A zero value for /hubredundancy means generate no connections inbound to the hub DCs.
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Likewise for /bchredundancy.
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