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Bobby AshtonFlag for United States of America

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Slow Backups

We are doing weekly full backups for our servers, but they are taking much too long.  We are backing up about 1.2 tb on 9 servers to a remote NAS.  The backup exec server is a Dell Power Edge 2850, running Windows Server 2003.  It has an iSCSI connection to the NAS witch is a Dell NX1950.  The iSCSI connection is all Gigabit accross 2 cisco 3750's with a single mode fiber link connecting the switches.  The full backups are taking about 160 hours to complete.  One specific server is taking about 72 hours to backup about 380 gb.  Is this normal for the hardware in use?  If not what would be my likely candidates for a problem?

Thanks,
Bobby
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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Are you backing up the servers using an Agent in the virtual machine with Backup Exec.

You may want to consider using one of the following Backup Technologies for Virtual Machines:-

1. Veeam Backup
2. Vizioncore vRanger Pro
3. phd virtual eSXpress
4. VMware vDR

Incremental Backups and DeDeup may help you.
"on the  The backup exec server which is a Dell Power Edge 2850" does it have any free disk space, say 250-500gb. i'd suggest u do a backup to disk first to see the time it takes.

also, seperate the backup traffic by putting in additional nics and ip addressing and routing where the backup traffic goes over a particular vlan/network.
Backup times are also dependent on how much data is being read/written at the time of backup.

If a SQL server is being backed up when it is concurrently being accessed by 2 or more users remotely, this might increase the time needed to backup as well.

What are the applications hosted on these servers which are being backed up ?
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ASKER

Regarding the first comment about vmware, 3 of the servers being backed up are virtual guests.  We have a standard windows agent on those servers for backing up the data.  At present the backup server is a physical server and the other servers being backed up are physical.

I will try a backup tonight using local disk space on the backup server if I can to see if the network connections are indeed the problem.

The two servers that take the most time are not running any databases, they mainly contain a lot of data files.  Some of the files are large because that aerial photos and cad drawings.  One of the servers is a domain controller.
Backup up virtual machines using an Agent inside the machine is not the most effiecient way or fastest of backing -up virtual machines, because the read time of the individual files in the machine.

You'll get faster backups using a Virtual Machine backup product

You may want to consider using one of the following Backup Technologies for Virtual Machines:-

1. Veeam Backup
2. Vizioncore vRanger Pro
3. phd virtual eSXpress
4. VMware vDR

Incremental Backups and DeDeup may help you.

Also network throughput will have an impact on performance, I don't know if you've got trunked "bonded" 1G NICs in the backup server, to increase throughput.
try the products for Free, or consider

Free tool here:-

ghettoVCBg2 - Free alternative for backing up VMs

http://communities.vmware.com/docs/DOC-9843

It maybe worth a try.
SOLUTION
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Bobby Ashton
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The actual answer to the initial problem came from another source,   but the VMWare information provides a better overall solution moving forward so I am marking both answers so anyone viewing the thread will know what to look for.