Using the -E -F parameters multiple time with the Extractor
The error may display: "LiteSpeed file set extraction will result in ## MTF backup files."
Please see the video below:
The Litespeed extractor is used to construct a set of native backup files from a set of LiteSpeed backup files.
This can be a little tricky since any (possibly unknown) number of native files can be stored in a LiteSpeed stripe set (also of an arbitrary number of files).
To this end, the extractor performs two different operations:
It will tell you how many native files are embedded in the LiteSpeed backup set and It can extract these native files
As an example - assume there are two LiteSpeed stripe files named c:\file1.bkp and c:\file2.bkp
Also assume this stripe set was created with 3 threads such as by the following backup command:
SQLLiteSpeedx32.exe -B db -D database_name -t 3 -F c:\file1.bkp c:\file2.bkp
Using the extractor on any member of a LiteSpeed stripe set without using –E argument will result in a message detailing native file count.
Running: extractorx32 -F c:\file1.bkp
Will display the message : "LiteSpeed file set extraction will result in 3 MTF backup files."
So now we can extract the MTF (Microsoft Tape Format) native backups…
Running: extractorx32 -F c:\file1.bkp c:\file2.bkp -E native1.bkp native2.bkp native3.bkp
Will create the 3 native backup files specified- User must specify the correct number of files…
Note: It is not necessary to keep repeating the –F or –E switch…
The command-line above is identical to: extractorx32 -F c:\file1.bkp –F c:\file2.bkp -E native1.bkp –E native2.bkp –E native3.bkp
There is one exception to specifiying the correct number of native files:
If the user specifies one and exactly one native filename, then the extractor will use that name to create all required filenames by adding suffix indices.
(Note: This method obviously adds the restriction that the extracted files will all be written to the same drive and directory)
So Running: extractorx32 -F c:\file1.bkp c:\file2.bkp -E native.bkp
Will create files: native.bkp1 native.bkp2 native.bkp3
