[Info-vax] CRTL and RMS vs SSIO

[Stephen Hoffman]

On 2021-10-10 02:13:48 +0000, Lawrence D’Oliveiro said:

> On Sunday, October 10, 2021 at 1:44:55 PM UTC+13, Stephen Hoffman wrote:
>> Various apps can use range locks or local locking or other 
>> synchronization for that, but Linux does offer integrated lock 
>> management support.
> 
> Nothing VMS-style.

https://linux.die.net/man/3/dlm_lock

All of which should look familiar to folks familiar with the OpenVMS 
DLM and the associated system service calls including $enq.

>> I don't recall which Linux version first saw lock manager integration, 
>> but it was a while back. In RHEL clusters running GFS2 for instance, 
>> that DLM is a fundamental part of file access.
> 
> Might be a Red-Hat-specific feature, then.

Nope. Bog-standard Linux. DLM has been part of the Linux distro for 
~fifteen years, IIRC.





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