[Info-vax] New filesystem mentioned

[Bob Koehler]

In article <qbena1$tst$1 at dont-email.me>, Dave Froble <davef at tsoft-inc.com> writes:
> On 5/14/2019 9:58 AM, Bob Koehler wrote:
>> In article <qbd262$ejt$1 at dont-email.me>, Dave Froble <davef at tsoft-inc.com> writes:
>>>
>>> The DLM is cluster aware, and any locks are respected over the entire
>>> cluster.
>>
>>     There are no DLM calls in ZFS as it is distributed.  You'ld have to
>>     add them.
>>
> 
> Perhaps because no other OS (well, almost all) has a DLM.  At least that 
> I'm aware of.  IBM Sysplex is most likely something similar, don't know.

   True, although I do understand that IBM contributed a DLM for Linux.

> Anyway, as I understand it, on VMS, the DLM and the ODS file systems are 
> two separate and independent things.  Users can access files through a 
> file system, and can use the DLM to determine whether a particular 
> resource is available, or in use by another.

   ODS is not independent of the DLM.  ODS uses the DLM.