Input/output error when creating datastore

[anthonyhelmey]

When trying to install a datastore on a SAS drive configured as RAID 0 i get an input/output error and the creation fails. Any help is appreciated. Thanks!

[a_p_]

Please provide some details. Which RAID controller (vendor/model) do you use? What's the size of the RAID0 logical volume? Did you try to cleanup the logical volume from any previously existing partitioning information (if any)?

André

[anthonyhelmey]

Sure thing,

The drive is by itself as RAID0 under management of LSI MegaRAID. The logical volume size is the size of the physical disk, which is 600GB ~560GB configured. The drive is brand new, there is no partition on it of any kind, it went straight from packaging into the server.

[anthonyhelmey]

This is the whole error

Call "HostDatastoreSystem.CreateVmfsDatastore" for object "ha-datastoresystem" on ESXi "172.20.2.120" failed.

Operation failed, diagnostics report:  Unable to create Filesystem, please see VMkernel log for more details: Input/output error

[a_p_]

I'd suggest you boot the system from a Live-CD or DVD like gParted and explicitly clear the partition table to ensure there are no remaining unexpected "dirty" bits, which might cause the issue. Alternatively you could use e.g. a Windows 2008 DVD to boot from and once the language selection shows up, press Shift-F10 to open a command prompt, run diskpart, select the disk and run the clean command.

André

[anthonyhelmey]

Thanks for the help. Reformatting the drive in the Windows OS configured on the main RAID array and rebooting into ESXi, then using VSphere to create a data store, worked.

[a_p_]

Great to hear it worked. Thanks for the feedback.

André