[stgt] RFC [PATCH] Implement PERSISTENT RESERVE IN/OUT

[Mark Harvey]

On Wed, Aug 27, 2008 at 4:46 PM, FUJITA Tomonori
<fujita.tomonori at lab.ntt.co.jp> wrote:
> On Thu, 21 Aug 2008 20:27:56 +1000
> "ronnie sahlberg" <ronniesahlberg at gmail.com> wrote:
>
>> Please try my tool i linked with earlier.
>>
>> it can be used to
>>    read the list of registered keys
>>    register a particular key (with any scope / type you want)
>>    unregister keys
>>    report capabilities
>>    read the current set of reservations
>>    create a reservation
>>    clear a reservation
>>    preemt a reservation
>>
>>
>> it might be very useful for testing the persistent reservation code
>
> Doug's sg3 utility (sg_persist) support all the above operations?

Which is what I've been using. Although which options are
needed/required/make sense is a little harder to figure out...

I've downloaded Ronnie's utilities and have started using this as well
(sanity checking)

>> > As for testing, I have the ability to check using Veritas Cluster Server &
>> > NetBackup.
>
> Anyone knows other applications need PR?
>
> I heard that Windows Server cluster needs it.
>
I'm also 99% positive that Microsoft cluster requires PR.

Veritas Volume Manager (VxVM) works better if PR is available (but can
be configured not to use it).

I'm sure some of the software that comes out of EMC would also use PR.

Mark
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