[Info-vax] VMS - The new file system. What do we know about it?...

[Michael Moroney]

IanD <iloveopenvms at gmail.com> writes:

>I'm still curious about the new file system

>What else can be let loose about it?

>- Will existing RMS work with it?

The idea is that existing RMS will work with it.  The new file system will
have increased performance, and will work on disks larger than 2TB.

>- Does it working across volumes? (i.e. sharding like abilities)

Do you mean volume sets? According to the bootcamp presentation, the
answer is no. Volume sets are a mostly obsolete concept anyway.

>- I understand that it's being revamped to 64 bit internals, what are 
>the limits (i.e. How does it compare to this list/ What's similar on this 
>list?)

I do not understand the question.  Right now, as Clair mentioned, work is
being done to the executive internals so that disks larger than 2TB will
work correctly. This should be in V8.next with the goal being that one can
$ MOUNT/FOREIGN a >2TB drive and do logical $QIO reads and writes to any
valid block on the drive, but not do RMS access. This is low level stuff,
like "Give me Disk Block nnnn" or "Give me X blocks (actually X*512 bytes)
starting at Disk Block nnnn". It's more complicated than it sounds.  
Marrying the new file system to the 64 bit LBN stuff will have to wait for 
V9.x.