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"Unable to attach to one of the drives" (a000848c) Error

Created: 17 Jan 2005 • Updated: 22 May 2010 | 3 comments

Good morning;

I am getting a "Unable to attach to one of the drives" (a000848c HEX or e000848c HEX) error message
during the nightly back-ups that the company runs. The error is occurring with drives
on an Exchange 5.5 server. Some of the drives on the Exchange Server are being backed up correctly. I have checked to see that all of the backup exec services are running on the Exchange Server. The system login account
on the server has not been changed. I would greatly appreciate any help with this matter.

Thank you;


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Mani 2's picture

Kindly perform the following to resolve the issue

1. Create a new user account for eg) vrtsbkup and its mailbox

2. Assign Admin and Domain Admin rights(Backup Operator rights not required)

3. Assign the exchange full Admin rights from Exchange System Manager

4. Assign it local Admin rights on Exchange Server

5. Send email to this account and check if the email is received

6. Go to network>logon accounts, create a logon account for vrtsbkup

7. Right click on mailboxes and select connect as and type in the user name vrtsbkup and its password

8. Also ensure that the BackupExec Services account has the following rights.

i) Act as part of the Operating System

ii) Backup Files and Directories

iii)Create a Token Object

iv) Manage Auditing and Security Log

v) Restore Files and Directories

Related Documents

Additional Information

As a preliminary step, make sure that you have updated Backup Exec v9.0 to Backup Exec v9.1. It addresses many issues and enhancements from an earlier versions and Build of Backup Exec v9.0. Refer the following technotes:

Title: VERITAS Backup Exec (tm) 9.1 for Windows Servers revision 4691.1 (Single .ZIP download)

Title: VERITAS Backup Exec (tm) 9.1 for Windows Servers General Information

Note: 1. BEWS 9.1 is a free downloadable upgrade inclusive of previously installed agents and options from Backup Exec 9.0 for Windows Servers agents and options.

2. Update all agents/options on all remote systems.

bronemanng's picture

I get the same error but sometimes it runs fine other times not. This leads me to believe it is not a rights issue. What I have just done (today) is to reorder my backup order so that the exchange information store is the last thing backed up. The only drive that seemed to have a problem was the one that backed up after the exchange info store. I'll let you know the outcome in the next day or so.