| Title: | LSM |
| Moderator: | SMURF::SHIDERLY |
| Created: | Mon Jan 17 1994 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 803 |
| Total number of notes: | 2852 |
AS1 AS2
+---+ +---+
| | | |
+---+ +---+
/\ +----+ /\
------| |-----------
+----+
DATA DISKs
(BA350 BOX)
There are two alpha servers installed with DECsafe. As the customer
will de-install the DECsafe and keep the existing hardware and LSM
configuration, both machines will mount the desired disk groups.
The customer wants to know that if the AS1 is broken down, could the
AS2 import all the disk groups on the AS1 except rootdg ? If so, is
there any impact for them ?
Any suggestion ?
Thanks.
Rgds,
Ivan Cheng
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 743.1 | KITCHE::schott | Eric R. Schott USG Product Management | Fri Jan 24 1997 10:00 | 47 | |
> > > > AS1 AS2 > > +---+ +---+ > | | | | > +---+ +---+ > /\ +----+ /\ > ------| |----------- > +----+ > DATA DISKs > > (BA350 BOX) > If you run without decsafe, you will have to ensure sharing is never done on the scsi bus...(or else you will corrupt the data on the disks)... > > There are two alpha servers installed with DECsafe. As the customer > will de-install the DECsafe and keep the existing hardware and LSM > configuration, both machines will mount the desired disk groups. > > The customer wants to know that if the AS1 is broken down, could the > AS2 import all the disk groups on the AS1 except rootdg ? If so, is > there any impact for them ? This could be done manually if you know the procedure, and you ensure sharing does not happen by accident (like if AS1 is rebooted).. In short, this requires a fair ammount of knowledge ans sophistication to do correctly... suggest you consider this as the support of this can be a real problem if you don't have onsite Digital folks... > > Any suggestion ? > > Thanks. > > Rgds, > Ivan Cheng > > | |||||
| 743.2 | LSM will help to some degree | SMURF::SCHLOSS | Fri Jan 24 1997 10:52 | 3 | |
LSM will also try to prevent a diskgroup from being imported on one
machine when it thinks that it may still be imported on another. See
the documentation for "voldisk clearimport".
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