OS/2 Professional/OS2PRO194.ISO/os2/wps/file/backagan/ba2inst/bcbbpcfg.hlp

OS/2 Help File | 1994-03-31 | 58.4 KB | 748 lines

ΓòÉΓòÉΓòÉ 1. Backup Window ΓòÉΓòÉΓòÉ

The backup window is the main interface for defining and starting a backup set
and can be invoked by selecting the File->Backup menu item, by pressing Alt+B
from the main window, or by clicking on the icon located on the main window
tool bar.

Related information

   Tool bar
   Status Bar
   Directory Tree Window
   File List Window
   File Menu
   Group Menu
   Patterns Menu
   Options Menu
   Window Menu
   Help Menu


ΓòÉΓòÉΓòÉ 1.1. Tool bar ΓòÉΓòÉΓòÉ

The backup window provides a tool bar, pictured below, to facilitate
ease-of-use.  Simply click on the icon to invoke the desired function. There is
also a field for entering a brief description of the backup set.

                           The backup window tool bar.

Shows the device specification window.  Equivalent menu item is
Group->Device...

Shows the include patterns editing window.  Equivalent menu item is
Patterns->Include...

Shows the exclude patterns editing window. Equivalent menu item is
Patterns->Exclude...

Shows the backup schedule mode window.  Equivalent menu item is Group->Backup
Mode...

Shows the compression options window.  Equivalent menu item is
Group->Compression...

Invokes the online help.  Equivalent menu item is Help->Index.


ΓòÉΓòÉΓòÉ 1.2. Status Bar ΓòÉΓòÉΓòÉ

The status bar across the bottom of the window provides useful information
about the data displayed on the window.  The name of the current backup set is
shown, or "<New>" if no backup set has been loaded.

The ready indicator indicates whether or not the directory tree and file list
windows are ready to accept input by displaying either "Ready" or "Wait".

Along with the current time, the number of bytes selected as well as the number
of files selected are displayed.


ΓòÉΓòÉΓòÉ 1.3. File Menu ΓòÉΓòÉΓòÉ

The file menu option, located on the backup window menu bar, is used to save
backup sets, load backup sets, and start backups.

New... clears the loaded group and resets all options to their default
settings.

Open... is used to load a backup set that has been previously defined.

Save is used to save a backup set.

Save as... This is handy loading a backup set, making a small change to it, and
saving it under a different name.

Backup Now... is used to start a backup operation with the currently defined
backup set.  This option is enabled only if one or more files has been marked
for backup.

Cancel close the backup window without starting a backup operation and returns
to the main Back Again/2 window.


ΓòÉΓòÉΓòÉ 1.4. Group Menu ΓòÉΓòÉΓòÉ

The backup window group menu can be used to show the compression selection
window, the backup set schedule mode window, or the device specification
window.

Backup schedule... brings up the backup schedule mode window.

Compress... brings up the compression selection window.

Device... brings up the device specification window.


ΓòÉΓòÉΓòÉ 1.5. Patterns Menu ΓòÉΓòÉΓòÉ

The backup window patterns menu can be used to show the include/exclude pattern
editing windows, as well as other file eligibility options.

Include... will bring up the include pattern editing window.

Exclude... will bring up the exclude pattern editing window.

Eligibility will bring up a checklist menu of several additional items that can
be used to select files for backup. Changed Files Only will only select files
that have the archive bit set. Note that this option is visible only on the
backup window menu bar. Hidden Files will include files that are normally
hidden, System Files will include system files, Zero Length Files will include
files that have no data.


ΓòÉΓòÉΓòÉ 1.6. Options Menu ΓòÉΓòÉΓòÉ

The backup window Options menu provides several additional features that may be
used when backing up files.

Reset changed flag is usually used with the 'Changed Files Only' eligibility
option.  When this option is selected, all files which are succesfully backed
up have their archive flag reset.

Verify during backup will cause Back Again/2 to immediately re-read the data
after it has been written and compare it to what should have been written.
This option provides an extra measure of security when backing up, but will
slow the backup process down by approximately 40%.

Move to archive will cause Back Again/2 to move the files to the backup archive
rather than just copy them.  All files that have been succesfully backed up
will be removed from the system.  When using this option, we recommend that the
verify option also be used to minimize the risk of data loss.


ΓòÉΓòÉΓòÉ 1.7. Window Menu ΓòÉΓòÉΓòÉ

The Window menu item can be used to manipulate the directory tree and file list
windows.

Cascade will arrange the directory tree and file list windows so that they
overlap, each taking up a majority of the main window space.

Tile will arrange the directory tree and file list windows so that they are
side by side, both completely visible.

Show file icons, when checked, will show the real file icon. If not checked, a
default icon is shown.  The default icon is faster to display.


ΓòÉΓòÉΓòÉ 1.8. Help Menu ΓòÉΓòÉΓòÉ

The backup window Help menu provides access to the on-line help system for Back
Again/2.

Help index provides an index of subjects contained in the help system.

General help provides a quick introduction to Back Again/2 and should be used
in conjunction with the online user's guide.

Keys information provides help with using accelerator keys with Back Again/2.

Using help provides help on using the Back Again/2 help system.


ΓòÉΓòÉΓòÉ 2. The Device Specification Window ΓòÉΓòÉΓòÉ

The device specification window is used to specify which device should be used
for backing up, restoring, or verifying data as well as recovering an archive
catalog file.

To specify the device, select the Group->Device... menu item, or click on the
icon located on the tool bar.

Related information

   Choosing a device
   Specifying the path
   Removable media
   Standard format


ΓòÉΓòÉΓòÉ 2.1. Choosing a device ΓòÉΓòÉΓòÉ

The device type is specified using the value set control.  To select a device,
simply click on the icon representing the device.  Currently, there are four
choices.

Drive A: will use floppy drive A:  This choice can be used with either the
standard or high-speed format options.

Drive B: will use floppy drive B:  This choice can be used with either the
standard or high-speed format options.

Hard/LAN Drive will use a hard drive or networked drive.  The path for this
selection should also be specified.

Other Filesystem Device can be used to specify devices not covered by the other
three choices, such as Bernoulli or magneto optical devices.  Note that in
order to use this option, the device must be addresable by an OS/2 drive
letter.  In other words, you need to be able to do a 'DIR' command on the
device.  The path for this selection must be specified, and if the device uses
removable media, the removable media box should be checked.


ΓòÉΓòÉΓòÉ 2.2. Specifying the Path ΓòÉΓòÉΓòÉ

For devices other than floppy drives A: and B:, the path where the backup files
should be stored need to be specified.  For floppy drives A: and B:, the paths
are always set to A: and B:, respectively, and cannot be changed.

To specify the path, type in the complete path in the entryfield provided.


ΓòÉΓòÉΓòÉ 2.3. Removable Media ΓòÉΓòÉΓòÉ

Back Again/2 needs to know if a device supports removable media so that it can
take the correct action if the device should become full, for example.

The only device type for which this may be changed is the 'Other Filesystem
Device' type.  If that device has been selected, check this box if the device
uses removable media.  For all other devices, this box is checked accordingly
and cannot be changed.


ΓòÉΓòÉΓòÉ 2.4. Standard Format ΓòÉΓòÉΓòÉ

For floppy drives A: and B:, files can be backed up in two different formats.
The standard format (default) creates a visible file on the diskette.  The
non-standard, or high-speed format, uses a special format on the diskette to
acheive approximately 40% greater speed.  This format also provides slightly
more storage space on a diskette (about 1.5 MB on a 1.44MB diskette).  However,
diskettes in this format will not work with standard OS/2 commands such as DIR
and COPY.

Check this box if the standard format should be used.  Note that the high-speed
format cannot be used unless the diskette drives have configured via the
Preferences... option from the main window menu.

For drives other than drive A: and B:, this box is checked and cannot be
changed.


ΓòÉΓòÉΓòÉ 3. Include/Exclude Patterns ΓòÉΓòÉΓòÉ

File name patterns specifying the files to include and exclude from a backup or
restore operation are specified using this window.

To edit the include patterns, select the Patterns->Include... menu item or
click on the icon located on the tool bar.

To edit the exclude patterns, select the Patterns->Exclude... menu item or
click on the icon located on the tool bar.

Related information

   The Pattern List
   Add pattern button
   Remove pattern(s) button


ΓòÉΓòÉΓòÉ 3.1. The Pattern List ΓòÉΓòÉΓòÉ

The pattern list container shows all of the patterns specifed for the backup or
catalog.

There are two columns in the list.  The attributes column shows 'All' if the
pattern should include or exclude subdirectories, or 'Only' if files in
subdirectories should not be included/excluded.

The file specification pattern shows the actual file pattern.


ΓòÉΓòÉΓòÉ 3.2. The Add Pattern Button ΓòÉΓòÉΓòÉ

The 'Add' button, located on the right side of the pattern window is used to
add new patterns to the backup set.  Clicking on this button will bring up the
add pattern window.

Related information

   The Add Pattern Window


ΓòÉΓòÉΓòÉ 3.2.1. The Add Pattern Window ΓòÉΓòÉΓòÉ

The add pattern window is brought up by clicking on the 'Add' pattern button on
the main pattern list window.

Enter the file specification, and if this pattern should include
subdirectories, check the 'Include subdirectories' check box.


ΓòÉΓòÉΓòÉ 3.3. The Remove Pattern Button ΓòÉΓòÉΓòÉ

The 'Remove' button, located on the right side of the pattern window just
underneath the 'Add' button, is used to remove patterns from the
include/exclude pattern list.

To remove a pattern from the list, hilight the pattern or patterns in the
pattern list and click on the remove button.  All highlighted patterns will be
removed.


ΓòÉΓòÉΓòÉ 4. The Schedule Window ΓòÉΓòÉΓòÉ

The schedule window is used to specify how the backup set should be activated.
There are four modes for backup; manual (normal), scheduled, timed interval,
and daily.

In addition to specifying the backup mode for the set, the backup set must have
an entry in the backup scheduler.

To select a backup mode, select the Group->Backup Schedule... menu item or
click on the icon located on the tool bar.

Related information

   Normal Backup Mode
   Scheduled Backup Mode
   Timed Interval Backup Mode
   Daily Backup Mode


ΓòÉΓòÉΓòÉ 4.1. Normal Backup Mode ΓòÉΓòÉΓòÉ

The normal backup mode is manual invocation i.e. the user must start the backup
operation.  This is the default mode.

Click on the 'Normal' radio button to select normal backup mode.

Note that even if a backup set is configured for unattended operation, it can
still be started manually.


ΓòÉΓòÉΓòÉ 4.2. Scheduled Backup Mode ΓòÉΓòÉΓòÉ

The scheduled backup mode setting accepts a date and time, and will back up the
set at that date and time.  The month, day, year, hour, and minute must be
specified.

Click on the 'Scheduled' radio button to select scheduled backup mode and
specify the date and time for the backup to start.

In addition to specifying the backup mode for the set, the backup set must have
an entry in the backup scheduler.


ΓòÉΓòÉΓòÉ 4.3. Timed Interval Backup Mode ΓòÉΓòÉΓòÉ

The timed interval backup mode will start the backup set at regular interval.
The interval, specified in minutes, can range from 5 to 1440 (24 hours).

Click on the 'Timed' radio button to select the timed interval backup mode and
specify the number of minutes between each backup.

In addition to specifying the backup mode for the set, the backup set must have
an entry in the backup scheduler.


ΓòÉΓòÉΓòÉ 4.4. Daily Backup Mode ΓòÉΓòÉΓòÉ

The daily backup mode can be used to start a backup at a specified time on the
specified days of the week.  It is possible, for example, to start a backup on
Mondays, Wednesdays, and Fridays at 9:30pm using this backup mode.

Click on the 'Daily' radio button to select the daily backup mode and specify
the days of the week and time of day for the backup to start.

In addition to specifying the backup mode for the set, the backup set must have
an entry in the backup scheduler.


ΓòÉΓòÉΓòÉ 5. Compression Selection ΓòÉΓòÉΓòÉ

Back Again/2 can compress data during backup so that it takes less space on the
backup device.  For many devices, compression can also increase the rate at
which data is backed up.  This is especially true on fast systems with floppy
disk, magneto optical, or other removable devices.  Several levels of data
compression are available, with less compression running faster and more
compression taking more time.

To specify the compression to be used, select the Group->Compression... menu
item, or click on the icon located on the tool bar.

Related information

   No Data Compression
   Fast Data Compression


ΓòÉΓòÉΓòÉ 5.1. No Data Compression ΓòÉΓòÉΓòÉ

Data compression can be disabled for maximum backup speed on fast devices, or
if the data being backed up has already been compressed. Also, disabling data
compression will free up system resources during a backup or restore operation
for other applications.

To disable data compression, click on the 'No Compression' radio button located
next to the icon.


ΓòÉΓòÉΓòÉ 5.2. Fast Data Compression ΓòÉΓòÉΓòÉ

Fast data compression compresses files as quickly as possible, but not compress
them as much as the 'smaller' data compression option.

This form of data compression typically yields a compression ratio of
1.9-2.0:1, comparible to PkZip with the -es option.  This is the default
compression type.

To enable fast data compression, click on the 'Compress Data' radio button
located next to the icon.


ΓòÉΓòÉΓòÉ 6. Overwrite Files Options ΓòÉΓòÉΓòÉ

During the restore process, some of the files to be restored may already exist
on the system.  Back Again/2 lets the user determine what should be done when
this happens.

To specify what should be done if a file is going to be overwritten, select the
Options->Overwrite... menu item, or click on the icon located on the tool bar.

Related information

   Replace Files
   Keep Existing Files
   Keep Newest Files
   Prompt for Action


ΓòÉΓòÉΓòÉ 6.1. Replace Existing Files ΓòÉΓòÉΓòÉ

This option causes Back Again/2 to overwrite files on the system with those
from the backup set, and is the default option for overwriting files.

To always overwrite files, click on the 'Overwrite' radio button located next
to the icon.


ΓòÉΓòÉΓòÉ 6.2. Keep Existing Files ΓòÉΓòÉΓòÉ

This option will cause Back Again/2 to not restore any files that are already
present on the system.  Existing files will not be modified. All other files on
the backup set will be restored.

To prevent Back Again/2 from overwriting existing files, click on the 'Keep
Existing' radio button located next to the icon.


ΓòÉΓòÉΓòÉ 6.3. Keep Newest Files ΓòÉΓòÉΓòÉ

When this option is selected, Back Again/2 will compare the dates of the two
files.  If the file on the system is newer than the file being restored, it
will not be overwritten.  However, if the file on the system is older than the
file to be restored, the file will be overwritten with the contents on the file
from the backup set.  All other files will be restored normally.

To make Back Again/2 only those files which are newer than those on the system,
or those which do not exist on the system, click on the 'Keep Newest' radio
button located next to the icon.


ΓòÉΓòÉΓòÉ 6.4. Prompt for Action ΓòÉΓòÉΓòÉ

Back Again/2 can defer the decision to overwrite a file to the user when this
option is selected.  During the restore process, if a file to be restored
already exists on the system, the user will be prompted whether or not to
overwrite the existing file.  If the user selects 'Yes', then the file will be
overwritten otherwise the file on the system will not be modified.  All other
files will be restored normally.

To make Back Again/2 prompt the user for overwriting files, click on the
'Promp' radio button located next to the icon.


ΓòÉΓòÉΓòÉ 7. Restore Drive Redirection ΓòÉΓòÉΓòÉ

Back Again/2 supports a powerful feature called restore drive redirection that
allows files backed up from one drive to be restored to a different drive.
This feature is handy if you wish to consolidate data from two drives onto one,
for example.

To restore files backed up from a different drive, select the drive the files
were originally backed up from, then select the drive that the files should be
restored to.

To set up drive redirection, select the Options->Redirection... menu item or
click on the icon located on the tool bar.

Related information

   Backup Up From
   Restore To
   Default


ΓòÉΓòÉΓòÉ 7.1. Backed Up From ΓòÉΓòÉΓòÉ

The 'backed up from' listbox is used to specify the drive that files were
backed up from.


ΓòÉΓòÉΓòÉ 7.2. Restore To ΓòÉΓòÉΓòÉ

The 'restore to' listbox is used in conjunction with the 'backed up from'
listbox to set up the redirection mapping.


ΓòÉΓòÉΓòÉ 7.3. Default ΓòÉΓòÉΓòÉ

The restore redirection mapping can be reset by clicking on the Default button
located on right side of the redirection window.  Clicking on this button will
reset the mapping so that files backed up from drive C: will be restored to
drive C:, and so on.


ΓòÉΓòÉΓòÉ 7.4. Directory Tree Window ΓòÉΓòÉΓòÉ

The directory tree window shows the drives and directories on the system, and
is used to select the directory for the files displayed in the file list
window.

The directory tree is organized so that the drives on the system are
represented by a drive icon and each directory is represented by a folder icon
in the folder or drive icon that represents its parent directory.  Initially,
all folders are 'collapsed' meaning that any subfolders are not shown.  Any
folder that has a next to it contains hidden folders. By clicking on the
collapsed symbol, the folder will be expanded one level and the symbol will be
changed to look like  . Alternatively, the context menu for each folder has an
Expand item; selecting this item will completely expand that folder and all
subfolders showing the entire subdirectory tree.

If the folder or drive icon has hash marks behind it (or is marked as an
include) then it will be included in the next backup or restore operation.


ΓòÉΓòÉΓòÉ 7.4.1. Drive/Folder Context Menu ΓòÉΓòÉΓòÉ

Each drive and folder has a context menu associated with it that is accesible
by clicking on the object with the right mouse button.  The context menu is
used to mark a folder or a drive for inclusion or exclusion and to expand and
collapse directory trees.

To mark the contents of the drive/folder, select the Include or Exclude menu
item on the context menu.  The drive or folder will then look like one of the
following :

o - Include drive (root directory only)
o - Exclude drive (root directory only)
o - Include folder
o - Exclude folder

To mark the contents of the drive/folder as well as all folders contained
within, select the Include All or Exclude All menu item on the context menu.
The drive or folder will then look like one of the following :

o - Include drive (all directories)
o - Exclude drive (all directories)
o - Include folder (and subfolders)
o - Exclude folder (and subfolders)

Select the Unmark menu item on the context menu to unmark a drive or folder.


ΓòÉΓòÉΓòÉ 7.5. File List Window ΓòÉΓòÉΓòÉ

The file list window lists details for all files in the selected directory, and
is used to select individual files for inclusion or exclusion from a backup
set.

The file list is organized into two sections.  The left section of the file
list window shows the icon, include/exclude marking, and file name information.
The right section of the display shows the file size, the date and time the
file was created, the date and time the file was last written to, the date and
time the file was last accessed, and the file attributes (Archive, Read-only,
System, and Hidden).

To mark a file for inclusion/exclusion, simply click on the file with the right
mouse button to show the context menu.  Then, select either the include or
exclude menu items, or unmark to unmark a file that had previously been marked.

If the file icon has hash marks behind it, the file will be included in the
next operation, otherwise the file will not be included in the next backup or
restore operation.


ΓòÉΓòÉΓòÉ 7.5.1. File Context Menu ΓòÉΓòÉΓòÉ

To mark a file for inclusion/exclusion, simply click on the file with the right
mouse button to show the context menu.  Then, select either the include or
exclude menu items, or unmark to unmark a file that had previously been marked.
The file will then resemble one of the following :

o - Include file
o - Exclude file


ΓòÉΓòÉΓòÉ 8. Restore Window ΓòÉΓòÉΓòÉ

The restore window is the main interface for setting up a restore operation and
can be invoked by selecting the File->Restore menu item, by pressing Alt+R from
the main window, or by clicking on the icon located on the main window tool
bar.

Related information

   Tool bar
   Status Bar
   Directory Tree Window
   File List Window
   File Menu
   Group Menu
   Patterns Menu
   Options Menu
   Window Menu
   Help Menu


ΓòÉΓòÉΓòÉ 8.1. Restore Window Tool Bar ΓòÉΓòÉΓòÉ

The restore window provides a tool bar, pictured below, to facilitate
ease-of-use. Simply click on the icon to invoke the desired function. There is
also a field for entering a brief description of the backup set.

                          The restore window tool bar.

Shows the device specification window.  Equivalent menu item is
Group->Device...

Shows the include patterns editing window.  Equivalent menu item is
Patterns->Include...

Shows the exclude patterns editing window. Equivalent menu item is
Patterns->Exclude...

Shows the overwrite file options window. Equivalent menu item is
Options->Overwrite....

Shows the redirection specification window.  Equivalent menu item is
Options->Redirection.

Invokes the online help.  Equivalent menu item is Help->Index.


ΓòÉΓòÉΓòÉ 8.2. File Menu ΓòÉΓòÉΓòÉ

The restore window file menu item, located on the menu bar, is used to load
archive catalogs and start restore operations.

Open... loads a catalog for a backup set in preparation for a restore
operation.

Restore... starts a restore operation.  Note that this item is disabled unless
one or more files have been marked for restoration.

Cancel closes the restore window and returns to the main Back Again/2 window
without starting a restore operation.


ΓòÉΓòÉΓòÉ 8.3. Group Menu ΓòÉΓòÉΓòÉ

The group menu item, located on the main menu bar, is used to specify the
device to be used for the restore operation.  Typically, this will not need to
be changed as the device information is stored as part of the archive catalog.


ΓòÉΓòÉΓòÉ 8.4. Options Menu ΓòÉΓòÉΓòÉ

The options menu item, located on the main menu bar is used to specify
overwrite options and restore drive redirection options.

Overwrite... specifies the action to take if the file to be restored is already
present on the system.

Redirection... specifies the drive mappings to use if drive redirection is
used.


ΓòÉΓòÉΓòÉ 9. Verify Window ΓòÉΓòÉΓòÉ

The verify window is used to verify that a backup was completed without errors
by reading the data from the backup and verifying it against data on the
system.

The verify function is invoked by selecting the File->Verify menu item from the
main window menu, by pressing Alt+V from the main window, or by clicking on the
icon located on the main window tool bar.

Related information

   Quick Verify Option
   Device Setup


ΓòÉΓòÉΓòÉ 9.1. Backup Set Name ΓòÉΓòÉΓòÉ

Back Again/2 needs to know the name of the backup set, and this information is
entered in the backup set name entry field.  Enter only the name of backup set;
the device and path is specified elsewhere. For example, if the backup set name
was 'MYBACK' and was located on drive B:, only 'MYBACK' would be entered.


ΓòÉΓòÉΓòÉ 9.2. Device Setup ΓòÉΓòÉΓòÉ

The default device for a verify or catalog recovery operation is floppy drive
A:, in standard mode.  To change the device or format mode, click on the setup
button to bring up the device specification dialog.

Related information

   The Device Specification Window


ΓòÉΓòÉΓòÉ 9.3. Quick Verify Option ΓòÉΓòÉΓòÉ

If only a quick check of the backup set is to be done, click on the 'Quick
Verification' checkbox.  The difference between a full verify and a quick
verify is that a quick verify checks the CRC-32 value and makes sure that the
archive is readable, but no data comparison is performed between files in the
backup and files on the system.

When doing a full verify, if the file currently being verified does not exist
on the system, a message is put into the log file and the file is then verified
using the quick verify mode.  The system will then reset to full verify mode at
the beginning of the next file.


ΓòÉΓòÉΓòÉ 10. Catalog Recovery Window ΓòÉΓòÉΓòÉ

Back Again/2 stores archive catalogs as a file on the system in order to
facilitate restoring files, however, if that file should be erased or damaged
it is neccesary to recover it before restoring any files.

The catalog recovery utility is designed for just this task.  It restores the
catalog file from the archive.  Since the catalog is the last file stored
during a backup, the catalog always resides on the last diskette.  This allows
the catalog to be restored by reading a single file off of one volume as
opposed to other backup programs which must scan all volumes in the backup set.

To invoke the catalog recovery utility, select the Tools->Recover archive
catalog menu item from the main window menu bar.

Related information

   Backup Set Name
   Device Setup