Conference cookie::aim$notes:disk_defrag

530.0. "IFT for Disk File Optimizer T2.3" by COOKIE::AMEND () Fri Apr 04 1997 14:34

  Would you like to participate in the internal field test site
  for Disk File Optimizer (DFO) T2.3 (Formally know as Polycenter File
  Optimizer). If so, you can copy the savesets from:

  COOKIE::AIM$PUBLIC:[DEFRAG.T23.KITS]

  One kit for both VAX and Alpha.  The documents are located at:

  COOKIE::AIM$PUBLIC:[DEFRAG.T23.DOCUMENTS]

  If you decided to participate in the internal field test, send
  me a message at COOKIE::AMEND and let me know that you have
  install DFO T2.3.

  The following are the new or added features and problems fixed
  in this release.
  

        New or Added Features in This Release

              The following describes the new or added features in this
              release of the Disk File Optimizer for OpenVMS:

              o  Support added for OpenVMS V7.1.

              o  A new logical, DFG$TRANSFERSIZE, has been added to help
                 you tune the Disk File Optimizer. The definition of this
                 logical allows you to change the amount of data that is
                 transferred at one time. On a volume that has files with
                 large extents, you could wait up to 20 minutes while the
                 system transfers these large extents before you could
                 access the file. By defining this logical, you could
                 access this file in less than a minute. This logical
                 changes the impact that the Disk File Optimizer has on
                 applications that are simultaneously accessing the same
                 files.

                 This logical is set to 10,000 blocks by default. You
                 can change it by editing SYS$STARTUP:DFG$STARTUP.COM and
                 then executing the command procedure.

              o  The log file has been changed. The log now logs the
                 time and shows the files defragmented for each phase
                 of defragmentation. Also, the log logs the time, files
                 defragmented, and files placed during the file placement
                 phases: frequent and dormant.

              o  The DECwindows interface has been improved to make
                 performing tasks easier.

        Problems Fixed in This Release

              The following describes the problems fixed in this release
              of the Disk File Optimizer for OpenVMS:

              o  If the system had DECC$SHR.EXE V06.1R-1, Disk File
                 Optimizer would install the DECC Run-Time over this
                 newer version.

              o  The algorithm that places hot, frequent, and dormant
                 files was improved. The improved algorithm does not move
                 files that are already placed. It also logs files that
                 could not be placed.

              o  The output of the SHOW/COMMAND command has been changed.
                 Before the change, the output of the command could not
                 be executed at the system prompt. The command line was
                 longer than DCL limit of 255 characters. The output
                 has been changed so that it can be executed at the
                 system prompt without failing. The output looks like
                 the following:

                 $!
                 $ DEFRAGMENT VOLUME $1$DKA0-
                 /NOAFTER/SCRIPT=DEFRAG_$1$DKA0
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/FULL-
                 /LOG=DISK$USER1:[DFG$DATABASE]DEFRAG_$1$DKA0.LOG;
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/CONSOLIDATE_FREESPACE
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/IGNORE=(PLACED,NOINDEXED)
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/LEVEL=1
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/MAIL_NOTIFICATION
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/NOOPCOM_NOTIFICATION
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/NODE=(-
                         SPIELN,-
                         ILDUCE)
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/PRIORITY=(MINIMUM:3,
                 DEFAULT:4)
                 $ DEFRAGMENT MODIFY DEFRAG_$1$DKA0/HOTFILE_DATABASE
                 $!

              o  Disk File Optimizer now detects open files on other
                 nodes in the cluster earlier in the defragmentation
                 process to lessen the performance impact.

  thanks for your support'a
    jim amend