Savepack
This screen displays details of the selected Savepack. To create a
Savepack, click on Add a new savepack
.
- Name
- Enter a name for the Savepack.
- Compression type allowed
- Click on this drop-down list to select the type of compression
that will be applied to the files and directories included in the
Savepack. Arkeia includes the Lempel Ziv compression scheme to obtain
better performance on large files. The types of compression are:
- Only LZ1 (fast compression, lower compression ratio),
- Only LZ3_3 (slower than LZ1 but better compression ratio),
- LZ1 or LZ3_3 (Arkeia determines which compression scheme is to be used based on a configuration file), and
- No compression.
- Encryption type allowed
- Click on this drop-down list to select the type of
encryption that will be applied to the files and directories included in
the Savepack. The encryption schemes that are available are:
- Only DES (Data Encryption Standard),
- Blowfish (more advanced than DES, but less standard),
- DES or Blowfish (Arkeia determines the encryption scheme to be used, based on a configuration file), and
- No encryption.
- Command before Savepack
- It is possible to enter a command in this field that
must be executed on the client before the backup of
the Savepack.
Caution - Command before
Arkeia will not perform the backup if the command entered in the
Command before Savepack field fails and returns a standard error
code. For instance, if a tar
command should be performed
on some files before the backup, and tar
returns a
standard error code (an error code larger than 0 --
Success
, then Arkeia will not perform the backup.
If the command did not perform as expected and returned an error code,
but the backup should be performed nonetheless, click on the check box
Backup Savepack if command fails
below the entry field.
A command can be any standard UNIX command, a shell program, a batch
file (on Microsoft® Windows® computers) or any other program that can be
launched from a command line. The following commands are valid
entries for a Command before Savepack
:
machine_fqdn!file:/home/john/scripts/dump.pl (Perl script on a Linux machine)
windows_fqdn!file:c:/Program Files/Arkeia/Arkeia/myscript.bat (batch script on a Windows machine)
- Command after Savepack
-
In the same way that a command can be entered to be executed before
the backup of the Savepack, another command can be entered to be
executed after the backup itself (see above for more details). To
allow the execution of this command even if the backup itself has
failed, click on the
Execute if Savepack backup fails
check box below the entry field.
- Media server
-
When a backup job using this Savepack is run, the
resulting backup data set will be sent to this media
server for storage. The default is:
- the backup server if the client is not a media server.
- the attached storage, if the client is a media server.
Click the button to see a drop list of available media
servers, and choose another media server if you do
not want to use the default.
- Comment
- Enter an optional comment about this Savepack.
- Number of retries
-
Choose the number of times Arkeia will unsuccessfully attempt to
access this Savepack before aborting.
- Follow symbolic links
-
Choose whether Arkeia backs up the files to which symlinks in
this Savepack refer.
- Follow file systems
-
Choose whether Arkeia should backup different file systems in this Savepack.
- File systems allowed
-
Choose which file systems will be backed up, and which will not be
backed up.
- Reset access times
-
Choose whether the access time for files in this Savepack is changed
as a result of backup or restore operations.
- Backup POSIX ACLs
-
Choose
Yes
if you want the file ACLs (Access Control
Lists) in this tree to be saved on backup. The value No
means that Arkeia will ignore any ACLs when backing up this
Savepack. Note that the setting of Backup POSIX ACLs in Tree
advanced options
can override the setting you enter
here. Setting POSIX ACL backup to Yes
increases the
processing overhead for every file, whether or not the file uses
ACLs. For this reason, the default is No
for ACL backup.
- Backup Linux extended attributes
-
Choose
Yes
if you want the Linux extended attributes
in this tree to be saved on backup. The value No
means that Arkeia will ignore any Linux extended attributes when backing up this
Savepack. Note that the setting of Linux extended attributes in Tree
advanced options
can override the setting you enter
here.
Linux extended file attributes is a file system feature that enables users to
associate computer files with metadata not interpreted by the filesystem,
whereas regular attributes have a purpose strictly defined by the filesystem
(such as permissions or records of creation and modification times).
In Linux, the ext2, ext3, ext4, JFS, ReiserFS and XFS filesystems support
extended attributes (abbreviated xattr) if the libattr feature is enabled in
the kernel configuration.
For OES 2 users, this is possible to backup NSS information (Metadata and trustees)
with this feature.
Novell has implemented a way to push the extended attributes into the standard
Linux xattr framework so that all of this specialized metadata can be preserved
by standard Linux xattr APIs.
The following lines must be added to the nssstart.cfg file:
/ListXattrNWMetadata
/CtimeIsMetadataModTime
The nssstart.cfg file is found at:
/etc/opt/novell/nss/nssstart.cfg on OES 2 servers.
- Find filter
-
Enter the name of a file containing a filter expression you wish to
use.
- Inclusion filter
-
Enter regular expression for the filename criteria you wish to include
in this Savepack.
- Exclusion filter
-
Enter regular expression for the filename criteria you wish to exclude
from this Savepack.
Click on Create
to save this Savepack. The Savepack is empty at first. To add the filenames to be backed up, click on the Savepack name in the Select a Savepack
list, then Manage trees for...
in the actions menu.