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Re: [Networker] Directed Recover with DDS and NDMP restore
2004-07-10 02:41:01
Thanks for your comments Hrvoje , does it mean that you can no restore it to
any other non NAS device ?
DRC is disaster recover center . When you have NAS in Production site and
you do not have NAS device in your disaster recovery center then potentially
you have problem because you can recover any data backup by NDMP in DRC
unless you have same type of NAS device .
Is there any workaround ?
From: "Hrvoje Crvelin" <Hcrvelin AT Orchestra DOT de>
To: "Rahul Parasnis" <rahulparasnis AT MSN DOT COM>
Subject: RE: [Networker] Directed Recover with DDS and NDMP restore
Date: Fri, 9 Jul 2004 16:00:01 +0200
Hi,
You were told well. They have different formats. I guess you are not
knowledgable about ndmp protocol, but try to remember following. There is
ndmp protocol, but implementations between vendors are different. This
leads to situations where sometimes X works for one vendor and it does not
for the other.
Backup application (no matter which one, Veritas, Legato, IBM, etc) is
using dnamp protocol to establish communication with ndmpd on filer side
and it acts as media manager only here. I didn't follow the thread from
start so I don't know what DRC is so I can't comment second part of your
email.
Cheers,
.c
-----Original Message-----
From: Legato NetWorker discussion on behalf of Rahul Parasnis
Sent: Fri 7/9/2004 3:45 PM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Cc:
Subject: Re: [Networker] Directed Recover with DDS and NDMP restore
If you have NDMP and DSN clients using same tape library , Legato says
technically it is possible but
not recommended .
If you have N drives then you should allocate some drives to NDMP and
should
take DDS license for remaining drives only .
Another very important thing I leart today from Legato , you people must
already know about this .
If you want to restore NDMP files then you need NAS device only .
That too you should have same type of NAS you can not restore Netapps NAS
data to EMC NAS or vice versa . Because NDMP format used by each NAS is
different .
It seems this is true with Veritas Netbackup as well . Can somebody
confirm
that this is true regardless of Legato or Netbackup ?
If you take NAS in Prod site then you need NAS in DRC site as well ,
otherwise you can not restore data .
Is there any other workaround so that we can avoid purchasing NAS in DRC
?
>From: "f_x" <f_x AT gmx DOT net>
>To: "Legato NetWorker discussion" <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>,
"Rahul
>Parasnis" <rahulparasnis AT MSN DOT COM>
>Subject: Re: [Networker] Directed Recover with DDS
>Date: Fri, 9 Jul 2004 13:53:27 +0200 (CEST)
>
> > Hello ,
> >
> > Caought my attention because we are going to implement DDS as well.
> >
> > When we are using NDMP and Direct storage Nodes do we need to allocate
> > some
> > drive to NDMP ?
>
>We have no ndmp installation so far.
>
> > We always get feed back that recovery GUI is much simple in Veritas
than
> > Legato . Can Legato do something about it ?
>
>The NetWorker gui in general is not very userfriendly. I don't know when
>Legato rewrites the gui part.
>
> > Directed recovery from one machine to another machine , is little bit
> > tricky
> > , you have to set permissions on servers .
>
>I have set the permissions correct. The data has been restored, but over
>source server(the machine that did the backup) and not directly(via DDS)
>to the server requesting the restore.
>greetings f_x
>
> > You can view and select various version for File but you have to do
> > "change
> > browse Time" for selecting particular version for Directory .
> >
> > regards,
> > - Rahul
> >
> >
> >
> >
> >>From: f_x <f_x AT GMX DOT NET>
> >>Reply-To: Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE DOT
EDU>,
> >> f_x <f_x AT GMX DOT NET>
> >>To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> >>Subject: [Networker] Directed Recover with DDS
> >>Date: Wed, 7 Jul 2004 19:19:22 +0200
> >>
> >>I have the following backup scenario:
> >>
> >>The backup server and 7 dedicated storage nodes sharing(DDS) a library
> >>with 4 tape drives connected via fibre channel. Each machine saves its
> >>data on the shared library. The problem is if i want to recover data
>from
> >>another machine, the other machine loads the tape and sends the data
via
> >>lan to the machine requesting the recover. I have tested the "read
> >>hostname" resource from the library, but without success. I think it
> >>should be possible the machine thats makes the directed recover loads
>the
> >>type directly.
> >>
> >>Thanks in advance for any input.
> >>f_x
> >>
> >>--
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>
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