Dropnet
Contributor
Contributor

sata raid seen as two single disks by esxi

hi,

i have two 3Tb disks in raid 0 on regular SATA ports but esxi shows them as two separate disks
a similar raid on my sas 2308 controller does show the correct disk information through a "ls /vmfs/devices/disks"
my sata controller is defined by Vsphere as a "Wellsburg raid controller"

the (boot) ssd disk  on another sata port of my esxi server does work fine.

anything i can do to fix this or research further?

2 Replies
a_p_
Leadership
Leadership

If the disks are seen as two individual disks, your RAID controller is most likely a software (fake) RAID controller, which requires additional OS drivers to be able to use the disks as a RAID set. However, ESXi doesn't support this RAID controller, but requires a real hardware RAID controller, which transparently presents the disks as a single volume to the OS. Since you mentioned RAID0 you may optionally create two separate datastores, one on each disk,

André

kc168888
Contributor
Contributor

Use the manufacture custom ISO to install ESXi.

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