Troubleshooting Verify Jobs; Troubleshooting The Catalog; Stream Sync Error - HP BB118BV - StorageWorks Data Protector Express Package User's Manual & Technical Reference

Data protector express user's guide and technical reference (bb116-90089, september 2008)
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Troubleshooting Verify Jobs

I occasionally get a 'stream sync error' when verifying media.
This is usually caused by a physical read problem from the backup device. The data Data Protector
Express expected from the media was not found. This can be caused by:
Table 1 1 Stream sync error
Bad media
Read errors on the drive
SCSI errors
Driver errors

Troubleshooting the Catalog

How do I select the location of the catalog in a network installation?
The network location of the catalog can be very important. On larger networks, to minimize the time
required to perform disaster recovery, install the catalog on a dedicated Backup Server. This server
performs no operations except the storage management processing. Then install the tape devices to
the servers to be backed up. If the storage manager server fails, no data is lost and recovery of the
server can proceed in a noncritical manner. If any other server fails, recovery can be quickly performed
because the Backup Server is still operational.
On smaller networks, you can install the catalog on the same server as the tape devices. Recovery does
not take as much time because the catalogs are smaller.
For additional information, see
How do I create a Data Protector Express management domain?
When you install Data Protector Express, you can choose to either join an existing Data Protector
Express management domain or create a new one. The Data Protector Express management domain is
associated with the same computer on which its catalog is installed.
To create a new Data Protector Express management domain, run the Data Protector Express installer.
When prompted, enter the name for the Storage Domain and the disk location for the catalog. The
default location is the Data Protector Express directory on your system, for example C:\Program
Files\HP\Data Protector Express on a Windows computer.
For additional information, see the Data Protector Express Data Protector Express Installation Guide.pdf.
When recovering from a Backup Server failure, does Data Protector Express recover all of
the catalog information?
Most of the catalog information is restored when you restore the catalog. The only thing that will not
be restored is the complete log of the job that was running when the catalog was backed up. The
reason for this is that the log is not written until after the job has completed. Jobs are not completed
until the catalog is written to the media.
316
Troubleshooting
Try replacing the media.
Try cleaning the drive heads.
Try checking the SCSI termination.
Try checking to see that you are not using a real mode ASPI drive. Check your
config.sys file for something like:
device=ASPI4DOS.SYS, ASPI8DOS.SYS...
Tips for Managing the
Catalog.

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