Hello,
You can however, when utilizing over the network NDMP backups, use non
ndmp drives and multiplex , the last time i checked the throughput was
equal or greater then FC since it was multiplex stream, admin guide does a
good job of explaining the scenarios.
In this scenarios with over the network NDMP, i believe you can write NDMP
and non NDMP data streams together, it may be a options for shops where FC
is not available or this configuration saves some hardware allocations and
it's simpler to implement.
HTH
"N.J.Tustain" <N.J.Tustain AT OPEN.AC DOT UK>
Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
02/13/2008 03:49 AM
Please respond to
EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>; Please respond
to
"N.J.Tustain" <N.J.Tustain AT OPEN.AC DOT UK>
To
NETWORKER AT LISTSERV.TEMPLE DOT EDU
cc
Subject
Re: [Networker] Backing up Celerra with NDMP to SAN attached tape
Thanks for the responses....
Steve,
I didn't think it was possible to share NDMP and non NDMP backups to a
drive that had been configured as an NDMP drive....? Would that require
a DDS?
We had intended to dedicate one or two drives solely for NDMP backups.
It was our intention to use block level (vbb) backup in hope the backup
rate would be excellent.
Although as a test backup, we backed up with file level backup over the
LAN averadged around 65MB/s to LTOIII, which I was impressed with.
SHYAM,
As I mentioned above our intention is to hopefully use two drives
solely for Celerra backup. There are two active ports on our Celerra
that attach to each leg of our fabric. I had intended to zone it so that
each active Celerra port was going to feed a tape drive down either side
of our fabric, the aim to prevent one port or tape drive from being
maxed out.
Do you know if it's possible for an active port on the celerra to be
JBconfigured to control/feed more than one drive, or does there need to
be a one to one relationship between the Celerra port and the tape
drive?
Thanks
Nick
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Wayne Smith
Sent: 13 February 2008 06:53
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Backing up Celerra with NDMP to SAN attached
tape
Hi Nick,
We used to perform our Celerra backups this way (although to the server,
not SN).
>From memory, you will need to run jbconfig, and configure all/some of
your tape drives to also be NDMP devices. You will also need the Celerra
ndmp username and password handy.
We have since changed the backup method to over the network, as we had
lots of problems with drive contention between the NDMP and normal
NetWorker backups. Have been relatively happy with this solution.
I am not sure about splitting the load between ports. I would assume
not, unless you manages to run seperate savesets/groups, and somehow
target specific tape drives, that were configured on seperate ports.
Dont know if this is a feasible option or not, have never looked into
it.
HTH
Wayne Smith
Systems Administrator
Data Centre Group
ITMS
Charles Darwin University, Darwin, NT, 0909
CRICOS Provider No: 00300K
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of N.J.Tustain
Sent: Monday, 11 February 2008 11:18 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Backing up Celerra with NDMP to SAN attached
tape
Hello,
Is anyone backing up a Celerra NAS using NDMP over a SAN to a tape drive
in a jukebox controlled by a SN?
Looking through some Celerra documentation, it suggests that
configuration is possible. I'm guessing a JBconfig would need to be run
and one drive in the jukebox configured as an NDMP drive?
Also, apparently Celerra can support four concurrent backup/restore
sessions. If an NDMP tape drive was configured against each of the
active ports (if that's possible) would it be possible for the backup
sessions to be split two out of each active port?
Thanks
Nick Tustain
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