I do not have any links at hand, but the Global File System (GFS) is a
good place to start. Do a web search.
Newer file systems, possibly Blackcomb, may change the way we view disks
and shared storage.
Geoff: Some days it does not pay to even get out of bed. I guess I was
trying to defend Max a little; although he did commit the crime and
deserved the lashing he got.
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Geoff Clow
Sent: Thursday, February 21, 2002 7:12 PM
To: File Systems Developers
Subject: [ntfsd] RE: How to share storage device on logical block acce
ss level?
Mark: Let’s just revel in the irony of Jamey teaching netiquette, and
move on.
Jamey: You have a great collection of references to shared device file
systems; cough 'em up.
-----Original Message-----
From: Mark Roddy [mailto:xxxxx@hollistech.com]
Sent: Thursday, February 21, 2002 6:43 PM
To: File Systems Developers
Subject: [ntfsd] RE: How to share storage device on logical block access
level?
He didn’t commit the henious cross-post, as that would be sending the
same message to both lists at the same time. He posted to ntdev, and got
very few answers at all. I suggested to him that he might get better
luck over here, as there would probably be more people familiar with the
issues on this list. Oddly enough, quite a few people do not read both
lists, and his question was actually in a grey area which borders both
the general nonsense of ntdev and the total nonsense of ntfsd. Touchy
bunch over here. Give him a break.
=====================
Mark Roddy
Windows XP/2000/NT Consulting
Hollis Technology Solutions 603-321-1032
www.hollistech.com
xxxxx@hollistech.com
For Windows Device Driver Training: see www.azius.com
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Andy Champ
Sent: Thursday, February 21, 2002 11:29 AM
To: File Systems Developers
Subject: [ntfsd] RE: How to share storage device on logical block access
level?
Actually Jamey, I only read NTFSD. OTOH I think this mught have been
the right list for the original enquiry.
Not that I can help much, which is why I didn’t reply before. This is a
very complicated problem. To do this you need a file system (*not* a
filter) which understands that the data on the disc might get changed
under it, and uses SCSI block locking(1) to keep the two machines’ view
of the disc sane. Cacheing is darn near impossible.
The short answer is - don’t do it. Use networking instead.
Andy.
(1) I’m trawling 10 years or so back in my memory for this, so I could
be wrong…
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