Can I Speed up NTBackup?

Is there any way to speed up my backup??  I am backing up to a Iomega REV drive via a share on the network..

I start the backup running at 6pm and it finishes at 8am the next day.. seems very long for only about 20Gigs in total to me.

seems that the "first storage group" backup is taking over 7 hours to backup itself.

I was having problems with the backup not working at all, then i installed Service Pack 1 for the Windows Server® 2003 operating system, Windows SharePoint® Services 2.0 Service Pack 1, Exchange Server 2003 Service Pack 1, Windows XP SP2 for Client Deployment & Windows Small Business Server 2003 SP1.

The backup now works but it is very slow.. is this normal to run nearly 12hours??

Heres the log  to shed some light:-


03/05/2006 18:00
-------------------------------
Date: 03/05/2006
Time: 18:00
User: SYSTEM
-------------------------------

Backup Runner started.
Launching NTBackup: ntbackup.exe backup "@C:\Program Files\Microsoft Windows Small Business Server\Backup\Small Business Backup Script.bks" /d "SBS Backup created on 03/05/2006 at 18:00" /v:yes /r:no /rs:no /hc:off /m normal /j "Small Business Server Backup Job" /l:s /f "\\server\Backup\Backup Files\Small Business Server Backup (01).bkf" /UM
NTBACKUP LOG FILE: C:\Documents and Settings\SBS Backup User\Local Settings\Application Data\Microsoft\Windows NT\NTBackup\data\backup01.log
=====================<BEGIN NTBACKUP LOG FILE>=====================
Backup Status
Operation: Backup
Active backup destination: File
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Volume shadow copy creation: Attempt 1.
Backup (via shadow copy) of "C: "
Backup set #1 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Backup Type: Normal

Backup started on 03/05/2006 at 18:02.
Backup completed on 03/05/2006 at 19:54.
Directories: 3175
Files: 34680
Bytes: 6,578,777,932
Time:  1 hour,  51 minutes, and  17 seconds
Backup (via shadow copy) of "E:  Data 1"
Backup set #2 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Backup Type: Normal

Backup started on 03/05/2006 at 19:54.
Backup completed on 03/05/2006 at 23:13.
Directories: 1672
Files: 20138
Bytes: 5,684,911,383
Time:  3 hours,  19 minutes, and  38 seconds
Backup (via shadow copy) of "F: Database"
Backup set #3 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Backup Type: Normal

Backup started on 03/05/2006 at 23:13.
Backup completed on 04/05/2006 at 06:35.
Directories: 286
Files: 6601
Bytes: 8,123,457,424
Time:  7 hours,  22 minutes, and  17 seconds
Backup of "SERVER\Microsoft Information Store\First Storage Group"
Backup set #4 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Backup Type: Normal

Backup started on 04/05/2006 at 06:36.
Backup completed on 04/05/2006 at 07:14.
Directories: 4
Files: 5
Bytes: 7,363,535,374
Time:  38 minutes and  21 seconds
Backup (via shadow copy) of "System State"
Backup set #5 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Media name: "Small Business Server Backup (01).bkf created 03/05/2006 at 18:00"

Backup Type: Copy

Backup started on 04/05/2006 at 07:14.
Backup completed on 04/05/2006 at 07:18.
Directories: 255
Files: 2767
Bytes: 588,743,931
Time:  3 minutes and  46 seconds

----------------------

Verify Status
Operation: Verify After Backup
Active backup destination: File
Active backup destination: \\server\Backup\Backup Files\Small Business Server Backup (01).bkf

Verify of "C:"
Backup set #1 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Verify started on 04/05/2006 at 07:18.
Verify completed on 04/05/2006 at 07:32.
Directories: 3175
Files: 34680
Different: 0
Bytes: 6,578,777,932
Time:  14 minutes and  3 seconds

Verify of "E:"
Backup set #2 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Verify started on 04/05/2006 at 07:32.
Verify completed on 04/05/2006 at 07:43.
Directories: 1672
Files: 20138
Different: 0
Bytes: 5,684,911,383
Time:  11 minutes and  4 seconds

Verify of "F:"
Backup set #3 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Verify started on 04/05/2006 at 07:43.
Verify completed on 04/05/2006 at 08:00.
Directories: 286
Files: 6601
Different: 0
Bytes: 8,123,457,424
Time:  16 minutes and  45 seconds

Verify of "SERVER\Microsoft Information Store\First Storage Group"
Backup set #4 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Verify started on 04/05/2006 at 08:00.
Verify completed on 04/05/2006 at 08:11.
Directories: 4
Files: 0
Different: 0
Bytes: 7,363,535,374
Time:  11 minutes and  49 seconds

Verify of "System State"
Backup set #5 on media #1
Backup description: "SBS Backup created on 03/05/2006 at 18:00"
Verify started on 04/05/2006 at 08:11.
Verify completed on 04/05/2006 at 08:13.
Directories: 255
Files: 2767
Different: 0
Bytes: 588,743,931
Time:  1 minute and  16 seconds

----------------------

=======================<END NTBACKUP LOG FILE>=====================
NTBackup finished the backup with no errors.
Backup ended at 04 May 2006 08:13
Backup Runner finished.