With the VI Client, click on one of your ESX Hosts.
Go to Configuration
Click on Storage Adapters
Click on each of your storage adapters and then click the blue "Rescan..." link above it to the right.
Check both boxes if not already checked and hit OK.
Then go back to add storage, it will be there.
*NOTE* You do not have to add storage to your other ESX hosts. Simply rescan on all HBAs and then do a refresh on the storage.
Hope this helps.
Thanks for everyones replies
I've already rescanned from with VC
and I'm having problems with the esxcfg-rescan command
the lun is /dev/sdb
please help with the verbiage of the command. Thanks!
If the LUN was made up out of disks that used to contain a file system and it is not zeroed out, ESX could read this and potentially cause problems.
Use fdisk to see if there are any partions on the drive, if there are delete them and try to add storage again.
"fdisk /dev/sdb" to start fdisk
"p" to print partition table on the disk
"d" to delete partition
"w" to write changes to disk
Let us know if it already sees a partition on the disk.