Datastore has lost it's host

[Stunnn]

vSphere Client 4.1.0

vCenter Server 4.1.0

Logged in as Administrator

I have two Datacenters on SAS storage (called "SAS OS" & "SAS Storage") and a third called "Slow Storage" on an adaptec controller, raid5 SATA disks (for large, slower storage)

"Slow Storage" is missing it's host. I can see it in Datastores but I just can't work out how to get it joined back onto it's host.

I only have the one Datacenter and wihtin that just the one Host.

I tried the obvious Inventory>Hosts and clusters   right click "rescan for datastores..." but with no joy.

I am sure there is an "obvious" button hidden somewhere but I just can't see it, sorry.

All help greatfully received.

Cheers,

Stu

[ArunNukula]

if i understand the issue correctly... datastore is not visible on the host.

when you click on the host and click on configuration , then storage  : you do not see the datastore. let me know if i am wrong.

do you the storage under storage adapters... or not.

if you open an ssh ,  then go to cd /vmfs/volumes then do ls ... do you the datastore....

then do an esxcfg-scsidevs -c and let us know the result.

[Stunnn]

Hi,

Thank you for replying...

Correct Datastore is not visible on the Host.

Click on Host > configuration > Storage and "Slow Storage" not seen.

I think the storage adaptor is there but it dosn;t look like it sees the datastore either.

I have attached Host > Storage View > MAP

you can see "Slow Storage" but doesn;t seem to be connected to anything.

I have also attached DataStore > "Slow Storage" > Performance

so that you can see that it CAN see it...

ssh?

sorry, although I have had this a while I haven't had the time to dedicate to learning more than I need to get a small network running (company taken over and I have many roles).

Cheers,

Stu

[Stunnn]

Hi,

SSH report attached

Means nothing to me.

There's one there with no name...

Then the next one only sees two lots of disks...

it's raid 5.. it can;t have disapeared. unless the Adaptec controller has died.. but then I can sort of Browse to it (but it says it's empty) and it can sort of read it...?!?!?

again, all replies greatly received... Cheers, Stu

[ArunNukula]

The datastore is inaccessible.

esxcfg-scsidevs -m ( will show the mounted devices on the host)

then go ahead and find out the device id whether the lun is present or not.

esxcfg-scsidevs -l ( will give the information about the devices )

once you have the naa id of the lun , go ahead and find whether the partition table is present or not.

fdisk -lu /vmfs/devices/disks/devid

also check whether the lun is being refered as a snapshot lun.

http://www.google.com/url?sa=t&rct=j&q=snapshot%20lun%20vmware&source=web&cd=2&ved=0CCcQFjAB&url=htt...

Also .. look into the logs of messages (esxi) vmkernel or hostd (esx)

Sorry it would have been better in case of a remote session

[Stunnn]

Thank you...

I think (from the info attached) that you are right, it can't see Adaptec controller and the SATA raid 5 array "slow storage"...

I can only guess the adaptec controller has died.

(tell me if you think I am barking up the wrong tree)...

I'm on site tomorrow, so I'de best get my screw driver out and have a look...

(might have a controller I can swap from another machine to check)

Cheers for the help..

Stu