Re: DECnet copy question

In article <4694394A.7060709@xxxxxxxxxxx>, "Richard B. Gilbert" <rgilbert88@xxxxxxxxxxx> writes:
Pierre wrote:
On Jul 11, 12:59 am, Pierre <pierre....@xxxxxxxxx> wrote:

On Jul 11, 12:19 am, Peter Weaver <info-...@xxxxxxxxxxxxxxxxxxx>
wrote:


On Jul 10, 5:54 pm, Pierre <pierre....@xxxxxxxxx> wrote:

...
I can easilly retieve a file from that server, whichever disk/
directory the file is on using a search list.but to upload a file onto
it I can not use that trick as the first entry of the search list will
always be used (I do not always write to the last disk/directory but
...

MOUNT/BIND should take care of your problem. You will end up with one
large logical disk. Type in HELP MOUNT/BIND for more information.

Peter Weaverwww.weaverconsulting.ca
CHARON-VAX CHARON-AXP DataStream Reflection PreciseMail HP Commercial
Hardware

thanks. I'm at home right now and can not check the help. is MOUNT/
BIND available in 7.2-1 ?


oups... ignore this silly question... I should go to sleep (1:40 AM)

anyway, I never used volume sets. what happens if one of the disks
craches ? do I lost all the data on the whole volume set or only on
the faulty disk ?

TIA,
Pierre


If a member of a bound volume set crashes, you lose your data. A bound
volume set behaves like a single big disk and a file may have pieces on
any or all members of the set.

If the root member of the volume set crashes, you lose access to all
your data. The [000000] directory on the root volume serves as the
top level directory for the entire set.

Most of your files are still there, but they are effectively "lost files"
since the top level directory in which they were catalogued is toast.

If a non-root member of the volume set crashes you lose the files on
that volume. For files with extents on multiple volumes you will lose
the pieces of those files that reside on the lost volume. And, most
importantly, you will lose any directories on the lost volume.

In a bound volume set the directory files are spread across the volumes
just like any other file. You can potentially find yourself with

[CHOCOLATE.CAKE]LAYER1.DAT on volume 4 with an extension header on volume 5
[CHOCOLATE]CAKE.DIR is on volume 3
[000000]CHOCOLATE.DIR is on volume 2
[000000]000000.DIR is on volume 1

You should not create a bound volume set without being aware of the hazards.

Yes. An search list that is periodically rotated would seem to be a better
fit to the OP's problem.
.

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