Image backups may only be made of the disks on the local computer system running the backup (no remote resources).
If you are restoring to different model IDE/ATAPI device, you MUST make sure that the "sectors per track" on the new drive is configured identically to the old drive's configuration.
Also note that the atapi.sys file provided by NT prior to version 4.0 Service Pack 6 does not natively support IDE disk devices larger than 8GB. If you are using an IDE device larger than 8GB and created the SADR Floppies on a computer using a version prior to 4.0 Service Pack 6, you will need to update the atapi.sys and the atdisk.sys files. Copy them from the Service Pack 6 CD to the appropriate SADR floppy – usually the last floppy. The files should be at least as new as the following:
09/23/1999 12:04p 27,696 ATAPI.SYS
09/23/1999 12:04p 26,480 ATDISK.SYS
Do not use UltraBac's image backup option on disks that are part of a software fault-tolerant or striped set. Hardware based RAID devices that present themselves as one physical disk can be backed up OK.
Do not run applications that open files directly from the image, but copy the files required to a temporary directory and open them from there.
When using the SADR Floppies/CD-ROMs to perform an image backup (i.e. UltraClean Copy), compression is not available.
Currently software compressed images can not be mounted. Images created with the in-use cluster image preference enabled cannot be mounted either. An image backup created using the UBDR utility cannot be mounted; nor can image created using the SADR utility.
The image backup function of the UBDR utility does not support
media spanning. In performing an image backup with the UBDR utility, be
sure the target media has enough capacity to complete the operation.
The MakeDisk.exe utility will run on Windows NT 3.51 and 4.0, and
Windows 2000. However, the source of the driver cache, required to create
the SADR Floppies, CD-ROM or
OBDR Image Files, must be the
Windows NT 4.0 installation files (typically the Windows NT 4.0 server
CD). A user creating the SADR
Floppies, CD-ROM or OBDR Image Files
on a Windows 2000 system will be prompted to provide a path to the Windows
NT 4.0 installation files (typically the I386 directory of the Windows
NT 4.0 installation CD). The MakeDisk.exe program is used to create
SADR Floppies, CD-ROM or OBDR Image Files used when restoring images.
Currently UltraBac will not backup bad blocks. If the source device is a SCSI drive UltraBac will attempt to automatically skip these blocks. If it can't or if the source device is an IDE drive, the backup aborts and an error message is posted.
UltraBac 6.3 and above provides the user with the "Always Backup
Partitions Individually" option. The "Always Backup Partitions
Individually" option applies to images of hard drives where unallocated
free space exists. With the "Always Backup Partitions Individually"
option enabled, UltraBac will image only the partitions; not the free
space. Prior to UltraBac 6.3, if the source disk has only a single partition,
a Standard Partition Level Image Backup will not be performed but will
be replaced with a Standard (Disk) Image Backup. If using a version prior
to UltraBac 6.3; and if a Standard Partition Level Backup is desired and
free space remains on the source disk, define another partition and select
only the original partition for the backup.
See User Manual: Image Preferences
The "MakeDisk.exe" utility, which provides for the creation of the SADR diskettes, will not be included in UltraBac 6.3 and above, in favor of the UltraBac Disaster Recovery (UBDR) utility. See User Manual: UBDR: UltraBac Disaster Recovery
The "MakeDisk.exe" utility, which creates the OBDR Image file, will not be included in UltraBac 6.3 and above. If you wish to utilize the OBDR function with your HP SureStore DAT drive, then contact UltraBac Technical Support and request the "MakeDisk.exe" for OBDR.
Tape Devices Only:
Due to the serial access method of all tape drives, access to files can be extremely slow. To maximize performance when accessing mounted images, follow these guidelines:
Do not use NT/2000 Explorer to browse the contents of the image. This is because explorer will open every file in the background in order to display the correct icon, and every directory to determine whether sub-directories exist. This will cause undue tape movement and appalling performance. For best results, use an MS-DOS command prompt window and DIR & COPY commands to retrieve files.
Access one partition at a time. Switching from one partition to another involves a great deal of tape movement and will take a long time. It is better to copy all of the files off of one drive letter at a time.
Do not run multiple copy operations simultaneously - this will severely degrade performance.
PCMCIA SCSI Controllers
Only the following PCMCIA SCSI Controllers are supported by standard NT 4.0:
- Adaptec APA-1460 Slim SCSI
- Future Domain PCMCIA SCSI Credit Card Controller
- KME KXCL002
See UBQ: UBQ000028 PCMCIA SCSI Controllers
NOTE: When restoring to a new disk of a different model, make sure that it is at least as large as the previous model. If the drive is replaced with a much larger disk than the original, unusable space may result. If this occurs, use the NT Disk Administrator utility or the 2000 Disk Management utility after the recovery and reclaim this unused space as another partition.
More
Information:
See UBQ: UBQ000186 - Image Backup and Restore Data Sheet