Solved

Usb-disk ported to VM very slow with big files.

Posted on 2013-06-06
4
3,383 Views
Last Modified: 2013-06-06
Hello experts.

I have a ESX1 5.1.0 build 799733 server.
I have connected a usb-harddisk to the hardware and ported the disk to the VM
so that the disk is visible in the windows vm.

I need to archive some 400GB vmdk's, the transfer speed is getting slower and slower after
a 100GB.

I copied some smaller files ( 50GB and 80GB ) and that go fine.

What can be the possible problem?


usb disk ported to vm
0
Comment
Question by:bastouw
  • 2
4 Comments
 
LVL 118

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 39226038
USB passthrough is the issue, slow USB external hard disk.

USB passthrough in our experience is very slow at transfer to USB external hard disks. It was never really designed for large file transfers or backups.

I would recommend, to speed up USB transfer, that you add the USB PCI interface to the VM, using VM Direct Path I/O, and then copy to the USB external hard disk this is proved to be faster.

see this link for guidance

http://www.vm-help.com/esx40i/VMDirectPath/USB_Setup.php

otherwise I would recommend Exporting the VM, VMware vCenter Converter Standalone 5.1, Veeam Backup to a Windows Share or NFS mount.

You can purchase some external USB hard disks which support Windows Shares and NFS we can be network attached, e.g. Western Digital World Book series.
0
 

Author Comment

by:bastouw
ID: 39226301
I get no support for passthrough.
It's a older model Dell PE 2950, can this be the problem?
ScreenShot1247.jpg
0
 
LVL 118
ID: 39226455
There is no VM Direct Path I/O on the Dell PE2950.

I would look at network transfer as an option.
0
 
LVL 30

Expert Comment

by:pgm554
ID: 39227162
Want  cheap reliable backup ,try iSCSI NAS from Iomega,

About $79 bucks at Frys or Amazon

http://www.amazon.com/gp/offer-listing/B007DAJWXQ/ref=dp_olp_new?ie=UTF8&condition=new

Just picked up two and it's a complete no brainer.
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Veeam Backup & Replication has added a new integration – Veeam Backup for Microsoft Office 365.  In this blog, we will discuss how you can benefit from Office 365 email backup with the Veeam’s new product and try to shed some light on the needs and …
In this article, I will show you HOW TO: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
Teach the user how to use configure the vCenter Server storage filters Open vSphere Web Client:  Navigate to vCenter Server Advanced Settings: Add the four vCenter Server storage filters: Review the advanced settings: Modify the values of the four v…
Teach the user how to join ESXi hosts to Active Directory domains Open vSphere Client: Join ESXi host to AD domain: Verify ESXi computer account in AD: Configure permissions for domain user in ESXi: Test domain user login to ESXi host:

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

8 Experts available now in Live!

Get 1:1 Help Now