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Files ending in .ifs may appear in folder containing database log files

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This article was previously published under Q260532

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Summary

During the operation of Microsoft Exchange Server 2003 or Microsoft Exchange 2000 Server, you may notice several files that end in .ifs in the Mdbdata folder (or wherever you have the database files stored).

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More information

For example, the following information is a directory listing taken while an Exchange 2000 Server computer was running:

D:\Program Files\Exchsrvr\MDBDATA>dir
 Volume in drive D has no label.
 Volume Serial Number is F035-47CB

 Directory of D:\Program Files\Exchsrvr\MDBDATA

04/13/2000  10:21a      <DIR>          .
04/13/2000  10:21a      <DIR>          ..
04/13/2000  10:17a          59,461,872 2.STF
04/13/2000  10:12a             262,144 812135E0-10787D.IFS
04/13/2000  10:21a               8,192 E00.chk
04/13/2000  10:21a           5,242,880 E00.log
04/12/2000  05:04p           5,242,880 E0000001.log
04/13/2000  10:00a           5,242,880 E0000002.log
04/13/2000  10:01a           5,242,880 E0000003.log
04/13/2000  10:01a           5,242,880 E0000004.log
04/13/2000  10:02a           5,242,880 E0000005.log
04/13/2000  10:02a           5,242,880 E0000006.log
04/13/2000  10:02a           5,242,880 E0000007.log
04/13/2000  10:02a           5,242,880 E0000008.log
04/13/2000  10:03a           5,242,880 E0000009.log
04/13/2000  10:03a           5,242,880 E000000A.log
04/13/2000  10:03a           5,242,880 E000000B.log
04/13/2000  10:04a           5,242,880 E000000C.log
04/13/2000  10:04a           5,242,880 E000000D.log
04/13/2000  10:05a           5,242,880 E000000E.log
04/13/2000  10:05a           5,242,880 E000000F.log
04/13/2000  10:14a           5,242,880 E0000010.log
04/13/2000  10:14a           5,242,880 E0000011.log
04/13/2000  10:14a           5,242,880 E0000012.log
04/13/2000  10:14a           5,242,880 E0000013.log
04/13/2000  10:14a           5,242,880 E0000014.log
04/13/2000  10:15a           5,242,880 E0000015.log
04/13/2000  10:15a           5,242,880 E0000016.log
04/13/2000  10:15a           5,242,880 E0000017.log
04/13/2000  10:15a           5,242,880 E0000018.log
04/13/2000  10:16a           5,242,880 E0000019.log
04/13/2000  10:16a           5,242,880 E000001A.log
04/13/2000  10:16a           5,242,880 E000001B.log
04/13/2000  10:16a           5,242,880 E000001C.log
04/13/2000  10:18a           5,242,880 E000001D.log
04/13/2000  10:18a           5,242,880 E000001E.log
04/13/2000  10:18a           5,242,880 E000001F.log
04/13/2000  10:19a           5,242,880 E0000020.log
04/13/2000  10:19a           5,242,880 E0000021.log
04/13/2000  10:20a           5,242,880 E0000022.log
04/13/2000  10:20a           5,242,880 E0000023.log
04/13/2000  10:21a           5,242,880 E0000024.log
04/13/2000  10:21a         108,011,520 priv1.edb
04/13/2000  10:12a         121,643,008 priv1.stm
04/13/2000  09:56a           4,202,496 pub1.edb
04/13/2000  09:56a           4,202,496 pub1.stm
04/12/2000  05:02p           5,242,880 res1.log
04/12/2000  05:02p           5,242,880 res2.log
04/13/2000  09:56a           1,056,768 tmp.edb
              47 File(s)    503,320,816 bytes
               2 Dir(s)     923,422,720 bytes free
These .ifs files are temporary files that are used during the normal operation of the Information Store service to cache directory listings and Exchange Installable File System (IFS) Master File Table (MFT) listings. The .ifs files are created with the FILE_FLAG_DELETE_ON_CLOSE flag set. The Information store process automatically deletes these files, and if any .ifs files are accidentally left behind (if the server stops responding, for example), they should all be deleted when the Information Store service starts. It is dangerous to delete .ifs files manually when Information Store service is running, but you can delete them safely when that service is not running.

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Keywords: KB260532, kbinfo

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Article Info
Article ID : 260532
Revision : 6
Created on : 10/25/2007
Published on : 10/25/2007
Exists online : False
Views : 256