ESXi 5.5 / the will of StarWind disk number

A ESXi connected to StarWind v6 via iSCSI MPIO.

Upgrade to v8 Starwind.  Update went well spent... all the existing disks/objectives remained and ESXi host was all mounted volumes.

At the same time to upgrade, I wanted to change the RAM cache in Starwind for each of my virtual devices.  Unfortunately Starwind have has this built in existing devices. I found reference to edit the .swdsk file to set the cache.  However my upgraded Starwind did not use this virtual disk format.

Then... I deleted an existing virtual device without deleting the associated image file.  Re-created Starwind device/virtual disk.  Joined an existing image file.  Re-connected to ESXi iSCSI.  I first tested on a small LUN first.  Everything seemed fine.  So I did it for all my devices StarWind.  Then following problems restart ESXi.

No mounted volume.  Determined through playing that ESXi has been seeing them as snapshots.  If I rode without re-signing volume disappeared again on restart.

So I went through the process via SSH

http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1011387

esxcfg-volume -l

esxcfg-volume -r VMFS_UUID|label


Completely removed all existing references to "old" volume names

Renamed all the Volumes mounted in the snap-* my original name

Re-recorded all the machines.

Finally the volumes mounted after restart ESXi.

This was a lot of unnecessary work that I do not want to repeat and want to know more about why it happened.  It is perhaps a matter for the people of StarWind...

What exactly has changed with the "volume" of ESXi clearly I generated a new Starwind device but to an existing image file.  The real VMFS volume inside this image file has not changed at all.  What is happening at the level of the iSCSI that this was seen as different to ESXi?


Thank you.

Hello

When ESXi connects to the iSCSI READ it identifies using several signs

1 size

2. the seller ID

3. product ID

4 UUID

5. ID series

If the foregoing does not match the original device, you will get a situation as you describe in the original post.

I think it happened when you were adding the StarWind LU to the management console.

You have selected the img file and StarWind first threw a warning, saying that it is an existing device. If you chose to use the img file anyway, resigned StarWind device by generating a new UUID and Serial code.

In the future, please use the swdsk header when adding previously created devices preventing the UUID and change of serial ID.

Tags: VMware

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