Re: [PATCH 2/2] Drivers: scsi: storvsc: Force discovery of LUNs that may have been removed.

From: Bart Van Assche
Date: Fri Aug 29 2014 - 03:39:42 EST

On 08/29/14 08:19, Hannes Reinecke wrote:
> On 08/29/2014 04:42 AM, Mike Christie wrote:
>> How are distros handling 0x6/0x3f/0x0e (report luns changed) when it
>> gets passed to userspace? Is everyone kicking off a new full (add and
>> delete) scan to handle this or logging it? Is the driver returning this
>> when the LUNs change?
> Currently it's logged to userspace and ignored.
> Doing an automated rescan has proven to be dangerous, as it
> might disconnect any LUNs which are still in use by applications.
> Especially HA or database setups tends to become very annoyed
> when you do an automated rescan.

Has it already been considered to add newly discovered LUNs
automatically and to leave it to the user to remove stale LUNs manually
? That would be similar to what the script does
without option -r/--remove.


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