topic Re: Changing EVA Host Definition in Disk Enclosures

Changing EVA Host Definition

Brad Gabrielse — Wed, 14 Oct 2009 18:07:31 GMT

EVA6000 Environment running XCS 6220. Customer with 4 ESX hosts sharing 25 Lun presentations. One of four ESX hosts has OS defined as "mswindows" in host definition properties.

How to change OS definition - is it as simple as editing to reflect "vmware", or is there a documented procedure? Also, what ramifications of making a change back?

Re: Changing EVA Host Definition

gabbar — Wed, 14 Oct 2009 21:56:04 GMT

short answer... you need to change the host mode to vmware, unpresent and represent the luns to reflect the change otherwise it will keep working in windows mode

Re: Changing EVA Host Definition

Brad Gabrielse — Wed, 14 Oct 2009 22:13:59 GMT

and are there any ramifications - what does the mswindows vs vmware host mode actually do?

Re: Changing EVA Host Definition

gabbar — Wed, 14 Oct 2009 22:30:16 GMT

OS mode are set because every OS has its own SCSI Commands. So it would be helpful for the EVA to interpet if it knoww what kind of device he is dealing wiht.. if you dont set this correctly(especially for vmware) you might come up with issues like scsi reservation conflicts