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тАО02-07-2009 07:11 AM
тАО02-07-2009 07:11 AM
how to ensure data integrity
may i know how can i ensure the data integrity under HPUX?
since i need to migrate data from VA to EVA, after the data migration, anyway to ensure/check the data integrity?
thx.
b.r.
terrytse
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тАО02-07-2009 08:16 AM
тАО02-07-2009 08:16 AM
Re: how to ensure data integrity
One option is to generate a check sum (using 'cksum' or 'md5sum' if you have installed) for each file before you migrate. Once the migration is done, you generate the check sum again and then compare.
If the data you are migrating are database files, and you are migrating the data while the database is up, then this may not work as DB files are always changing.
If you migrate the data with a DB down, then the check sum method should work fine.
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тАО02-07-2009 09:54 PM
тАО02-07-2009 09:54 PM
Re: how to ensure data integrity
but do i need to make a checksum comparison file by file?
b.r.
terrytse
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тАО02-07-2009 10:37 PM
тАО02-07-2009 10:37 PM
Re: how to ensure data integrity
Yes, cksum only works on a file, unless you tar up a bunch of files and you cksum that.
What did you want to do?
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тАО02-07-2009 11:34 PM
тАО02-07-2009 11:34 PM
Re: how to ensure data integrity
since i will migrate my Oracle Data File from VA to EVA, would like to make sure the data integrity after the files movement.
thx.
b.r.
terrytse
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тАО02-08-2009 07:17 AM
тАО02-08-2009 07:17 AM
Re: how to ensure data integrity
Are you going to shut down the Oracle DB(s) and copy the files? Or are you going to migrate while the DB is up and running?
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тАО02-09-2009 01:33 AM
тАО02-09-2009 01:33 AM
Re: how to ensure data integrity
Database will be shutdown, then copy the data file from VA to EVA.
thx.
terrytse