Errors trying to backup in SBS 2003 R2 to an external hard drive
Posted on 2007-08-10
we are trying to do backups to an external USB hard drive (maxtor One Touch III).
first, sbs server management shows the last 10 backups. do older ones get purged or is there a more complete list of backups and their results?
More importantly, it seems we'll get a fairly consistent pattern of 2 good backups then 3 failed backups. this is not dependent of the day the backup runs or similar... you can manually start backups and get the same results. the log on the last failed backup looks like this: the gist is that it found an error writing to the (external?) drive.. but then farther down, it says: Error: SERVER\Microsoft Information Store\First Storage Group is not a valid drive, or you do not have access
so there's 2 seperate issues? and the log from last night says that ackup was successful.. now I am looking - there's the backup file from today's (failed) backup is about the same size as yesterday's (successful) backup!? so it's erroring out with fairly serious messages and it did run?
the external drive has lots of space - backups are about 45 gb and there's 300gb free on the 500 GB drive.
I've run scandisk and it came up with no errors.
Backup started on 8/10/2007 at 2:18 PM.
Error: The device reported an error on a request to write data to media.
Error reported: Unknown error.
There may be a hardware or media problem.
Please check the system event log for relevant failures.
The operation was ended.
Backup completed on 8/10/2007 at 2:40 PM.
Time: 22 minutes and 12 seconds
Error: SERVER\Microsoft Information Store\First Storage Group is not a valid drive, or you do not have access.
The operation did not successfully complete.