Newly formatted 1.4 TB shared datastore went missing after few days of operation
Hi All,
I’ve just reformatted 1.44 TB LUN from my Dell MD3000i iSCSI SAN this was a Linux Ext3/FS RDM attached into one of my VM in on ESXi02 host, i did the following:
1. detaching the RDM from the VM
2. formatting it from the Dell SAN management software
3. present it to both host of ESXi01 and ESXi02 so that this new LUN can be shared together as VMFS.
4. Go to any of the ESXi01 or 02 settings and then add this datastore, format it with 8 MB block size and then make it available to both hosts by creating proper naming.
Today suddenly it went missing without no apparent reason or error? I’ve patch both host few days ago and restart both host and the new LUN was still ok yesterday, but today it went missing so I had to reformat it again from the VCenter from Datastores view.
I tried:
1. Rescan datastore – nothing appears
2. Refresh the datastore view from both hosts - nothing appears as well ?
I wonder what was happening before and I couldn’t imagine if those LUN got data in it?
Any kind of comment and suggestion would be greatly appreciated.
Thanks.
Note:
Vcenter Server 4.0 208111
VMware ESXi 4.0 244038
I’ve just reformatted 1.44 TB LUN from my Dell MD3000i iSCSI SAN this was a Linux Ext3/FS RDM attached into one of my VM in on ESXi02 host, i did the following:
1. detaching the RDM from the VM
2. formatting it from the Dell SAN management software
3. present it to both host of ESXi01 and ESXi02 so that this new LUN can be shared together as VMFS.
4. Go to any of the ESXi01 or 02 settings and then add this datastore, format it with 8 MB block size and then make it available to both hosts by creating proper naming.
Today suddenly it went missing without no apparent reason or error? I’ve patch both host few days ago and restart both host and the new LUN was still ok yesterday, but today it went missing so I had to reformat it again from the VCenter from Datastores view.
I tried:
1. Rescan datastore – nothing appears
2. Refresh the datastore view from both hosts - nothing appears as well ?
I wonder what was happening before and I couldn’t imagine if those LUN got data in it?
Any kind of comment and suggestion would be greatly appreciated.
Thanks.
Note:
Vcenter Server 4.0 208111
VMware ESXi 4.0 244038
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BTW..I would maybe also try to add this LUN/VMFS datastore to only 1 host at a time to see if it works just with one. If it doesn't work with 1 of them, then we can isolate 1 host having a problem...maybe a cable issue?
~coolsport00
~coolsport00
ASKER
hm... the cable is not in the equation since the other VM in neighboring LUNs is still OK.
I tried to add the LUNs before in one of the host and then re-add again it failed, then i tried to resignature it failed too, and then i can just format it then it is finally OK ?
I tried to add the LUNs before in one of the host and then re-add again it failed, then i tried to resignature it failed too, and then i can just format it then it is finally OK ?
Hmm...so, is it showing now?
ASKER
yes it is now all is OK after reformat of LUN.
But I still don't understand and worry about what just happened :-|
But I still don't understand and worry about what just happened :-|
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ASKER
Thanks dude
ASKER
yes the suggestion that you mention is what I just did mate, I was lucky enough to spot this problem before i put all of my production DB into this new VMFS volume.