Extremely slow backup to a network share

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Hi!

I'm backing up partitions from a laptop to a Win2008 R2 share.

The laptop is superfast with a SSD disk. The backup is running on highest priority. When running the backup is processor usage is typically 5%, and the usage of the 1GB network card is 3-6% the looking at it in Windows task manager.

So it's not the processing or network speed that is slowing the backup down.

The speed when using ATI is about 5MB/sec, and copying a file to the network drive is about 50 MB/sec

A AIT chunk of about 4GB takes 20 minutes!!

Why is the backup soooooo slow ?

David

Lun, 12/12/2011 - 22:22
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mvp

David,

The first thing to do is to isolate the problem. When you backup to a local disk, do you see normal speeds? I backup 40GB of OS data to eSata within 7mn.
If yes, you might have some network adapter setting issues. In my case, removing the offload of ipv4 chksm improved the bandwidth utilization of ATI. You might want to try different settings. Also, over wireless, the speeds seem to much lower than wired networks.

Finally, you might want to consider the FTP protocol which is better for file transfer than the general purpose SMB shares.

Mar, 12/13/2011 - 04:22
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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I see normal speed on local disk, and also when copying files.

There is almost no setting available on the network card, Intel(R) 82579LM Gigabit.

Dont use wireless.

What I dont userstand is why ATI have problems when the general network doesnt.

In order to use FTP I need to set up a FTP server ?

Mer, 12/14/2011 - 00:38
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Three days for a system backup u[to back up 275 gb from a hp dv6 to a network drive on a desktop using Ethernet cable.
This seems like to long. default setting on everything.
Acronis 2011 latest Rev.

Acronis True Image backs up 80 gb from an older laptop in about 2 hours
to the same destination drive using the same setup.

So I would expect something like 9 to 10 hours from Acronis 2011 if it could do the same speed.

Mer, 02/15/2012 - 03:31