Friday, March 29

Attach Physical disks in ESXi

 From 0xbadc0de


I built a new lab environment at home, using VMWare ESXi 5.0, which is a very nice product, if we expect the windows-only GUI 1GB HDD needed to install bloatware. You can do pretty much anything from there, except something that looks so important that I wonder why it’s not on the windows GUI: mapping local disks to VMs.

I made this little post as a reminder for myself rather than a full tutorial. You can get more info on http://blog.davidwarburton.net/2010/10/25/rdm-mapping-of-local-sata-storage-for-esxi, on which this post is based.
In a nutshell:
  1. log on vmware ESXi as root.
  2. locate the name of your fs in /vmfs/devices/disks/, i.e. “/vmfs/devices/disks/t10.ATA_____Hitachi_HDT725025VLA380_______________________VFL104R6CNYSZW
  3. go to where you want to copy it. I suggest you create a directory in a datastore for this, like “/vmfs/volumes/datastore1/harddisks/
  4. vmkfstools -z /vmfs/devices/disks/t10.ATA_____Hitachi_HDT725025VLA380_______________________VFL104R6CNYSZW Hitashi250.vmdk
  5. In your VM, use “attach existing virtual disk” and browse the harddisks directory on datastore.
  6. On linux, you will need “rescan-scsi-bus” to have you new hard disk detected.
  7. Profit
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