This works even better when you are using EMC and mirror the data with a
BCV. You shutdown the volume set on the production server (VSCLOSE), use
TimeFinder (from EMC) to split off the BCV and present it to another server,
then open your production volume set (VSOPEN). You are still mirrored in
production so you still are safe, and you only lose about 10-15 minutes
while closing/opening volumesets. Then you can do whatever you want with
your BCV on the other system. To resync, close the volumeset on your other
server, and resync. No downtime at all on your production server (because
the drives mirroring are handled within EMC and not on the HP). From what I
understand HP's XP drives can do a similar thing.
-------------------------------------------------------------
Gary L. Paveza, Jr.
Technical Support Specialist
-----Original Message-----
From: Johnson, Tracy [SMTP:[log in to unmask]]
Sent: Tuesday, May 09, 2000 12:43 PM
To: [log in to unmask]
Subject: Re: Fast Backup from System to System
I just thought of this one, is it even viable? ;-O
(This assumes the second system is a non-critical system.)
If it isn't viable, just consider it as humour:
On System #1 have a mirrored system (with hot-swappable drives.)
On System #2 have an unmirrored system with a User Volume
Set with the same User Volume Set name as System #1
(and the same type of drives of course.)
1) Shut down System #2
2) Remove the discs for the User Volume on System #2
3) De-mirror System #1
4) Pull the formerly-mirrored "secondaries" off System #1
5) Insert the ones removed from System #2 into System #1
6) Re-mirror System #1 (this will let them re-sync)
7) Insert the ones removed from System #1 in System #2
8) Start System #2
Alternatively, if you REALLY, really trust automatic
resynching of mirrored volumes, perhaps steps 3) and 6)
could be skipped.
> -----Original Message-----
> From: James Clark,Florida [mailto:[log in to unmask]]
> Sent: Tuesday, May 09, 2000 10:10 AM
> To: [log in to unmask]
> Subject: Re: Fast Backup from System to System
>
>
> What is your current connection? If 10Mb LAN use 100Mb LAN.
> Also, what is
> the load on the system at time of transfer? Are the two
> machines on a LAN
> segment of their own? Can they be connected only to each
> other. Are you
> using Compression option of DSCOPY? What type of Disc
> subsystems do you
> have? How much data are you trying to move? Check your I/O
> bandwidth? How
> long should it take at burst rate, and normal? Don't expect
> more than the
> hardware you have.
>
> James
>
> > -----Original Message-----
> > From: HP-3000 Systems Discussion
[mailto:[log in to unmask]]On
> > Behalf Of NewsGroups Holger Schrörs
> > Sent: Tuesday, May 09, 2000 1:57 AM
> > To: [log in to unmask]
> > Subject: Fast Backup from System to System
> >
> >
> > Hi to the group!
> > Has anybody experiences with using a direct connection between
> > two HP's for
> > doing fast (additional) backups ?
> >
> > We have a HP918 and a HP979 and want to transfer a lot of data
> > from the big
> > system to the small system. DSLINE takes hours and if there is
any
> > possibility we don't want to use Tapes.
> >
> > FTP also take a lot of time.
> > Is there any other chance?
> >
> > Thanks for a hint or solution
> >
> > Holger Schrörs
> > QVC Germany / IS&T - MIS
> >
>
>
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