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September 26th, 2014 07:00
NW-NDMP Backup to Data Domain VTL or DAS?
Hi
In addition to current existing backup (ddboost based backup). we need to implement also NDMP backup for NAS filer.
According NW admin guide, use of NDMP-DSA or NDMP Tape Server (VTL) would be technically possible in our environment.
What would you recommend as better and more useful method to use in together with ddboost?
Thanks
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ble1
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September 26th, 2014 08:00
I don't think DDBoost is used during NDMP backup (unless you use Isilon - not sure about VNX, but I think only Isilon supports it). What you surely would use is DSA approach which is kind of default nowadays.
mrakM
16 Posts
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September 26th, 2014 08:00
Thanks Hrvoje, I mean we are using now mostly ddboost for the current backup and
ndmp backup of NAS filer should be used in parallel with ddbost backups of esx environment...
For DSA method are there further settings required on DataDomain, or can I just use NW new client wizard and specified client as ndmp and insert ndmp client credentials?
ble1
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September 26th, 2014 10:00
Your NDMP backup will work just fine - I use the same as well. There is nothing to set on DD for DSA - your stream will go from filer to device as defined in NW.
mrakM
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September 30th, 2014 03:00
I tried to configure DSA NDMP backup and completed client registration with new client wizard.
-NAS Hitachi HNAS (bluearc)
-NetWorker 8.1.1
Updated client settings as following
Backup Command:
nsrndmp_save -M -T dump -P filer.shortname
App.info:
HIST=y
UPDATE=y
DIRECT=y
Save group failed immediately after start with following error message:
42909:nsrndmp_save: Performing DAR Backup..
83564:nsrndmp_save: Performing full backup
42596:nsrndmp_save: get extention list: communication failure.
backup failed.
Checked with aunt google for related error messages, and found workaround to run ndmpsup program to get the vendor name and to touch file ndmpgetextlist_disable_BlueArc Corp ....
Now, with file "ndmpgetextlist_disable_BlueArc Corp" in /nsr/debug I am getting following error message:
42909:nsrndmp_save: Performing DAR Backup..
83564:nsrndmp_save: Performing full backup
42794:nsrndmp_save: Performing backup to Non-NDMP type of device
42652:nsrndmp_save: DSA save time could not be retrieved, exiting..
42503 1412000043 4 2 15 511850240 18072 0 backup.server.fqdn nsrexec RPC severe 2 %s 1 49 53 80722 4 %s%s 2 24 0 11 26 355:Program not registered
backup failed.
ble1
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14.3K Posts
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September 30th, 2014 05:00
I assume port 10000 and ndmpd is running?
mrakM
16 Posts
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September 30th, 2014 07:00
Yes, I've double checked it.
NDMP current status is "started"
Port is 10000
mrakM
16 Posts
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October 7th, 2014 03:00
This hint in admin guide (page 675) has solved my issue...
In NetWorker 8.0 SP1 and later, for NDMP-DSA backups, the NetWorker software uses the
Storage Node attribute field of the NDMP client to determine which host receives the
backup data. The nsrndmp_save command does not require the -M and -P options. If you
specify the -M and -P options, they will override the Storage Node attribute value
Using "nsrndmp_save -T dump" only for backup command and deselect "Data Domain backup" make it works for me...
Now for backup of 2 TB it takes around 8 hours... Is this rate actually OK?