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Conference abbott::mailworks-vms

Title:MailWorks for OpenVMS
Notice:kit info notes 3-6; policies note 2; reporting bugs note 7
Moderator:KOALA::LAVASH
Created:Wed Jul 28 1993
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1583
Total number of notes:6814

1563.0. "What factors may contribute to disk fragmentation?" by HTSC19::DENISLI () Wed Mar 26 1997 03:58

    MailWOrks 1.3A ECO3
    
    The working disk (where MUAS$SERVER_000.DIR resides) is a RZ28 with 60%
    of free space.  This RZ28 also function as the working disk of MR and
    DECfax but nothing else.  Four days after BACKUP/RESTORE, the disk is 
    found 70%+ fragmented.  Which factors may contribute to the fragmentation?
    
    Thanks and regards,
    Denis
T.RTitleUserPersonal
Name		DateLines
1563.1hard to say without Defrag reportVELI::KORKKOVeli K�rkk� @FNO, 879-5512Tue Apr 01 1997 14:596
        How do you measure that 70%? If you have DFG (PFO) installed,
        how about posting 
        
        $ defragment show/volume/files 'device'
        
        _veli
1563.2HTSC19::DENISLITue Apr 01 1997 22:0718
    I have only captured DEFRAGMENT SHOW only,
    
    DISK$X400MAIL                                   7-MAR-1997 17:33:28.76
    
    The fragmentation index is 88.8    
                     1 - 20.9 is excellent
                    21 - 40.9 is good
                    41 - 60.9 is fair
                    61 - 80.9 is poor
                    81 - 100 indicates a badly fragmented disk
    Approximately 68.8 (out of 80.0 possible) is due to file fragmentation
    Approximately 20.0 (out of 20.0 possible) is due to freespace fragmentation
    
    Any idea?
    
    Thanks and regards,
    Denis
1563.3VELI::KORKKOVeli K�rkk� @FNO, 879-5512Wed Apr 02 1997 15:067
        This reveals that your free space is badly fragmented. But also
        there is fairly heavy file fragmentation issue. Without any more
        evidence (like names of heavily fragmented files and number of
        extents in those) it is not really possible to say anything
        more.
        
        _veli