Re: [ADSM-L] Help with NDMP dump & diff expiration

Exactly what I needed to know.
Thanks Remco.

(.... and saves me the trouble of putting  in another RFE!)


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Remco Post
Sent: Thursday, December 27, 2012 12:44 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Help with NDMP dump & diff expiration

Hi,

I once raised an RFE for managing diffs separately from the fulls. 
Unfortunately the answer is NO.

workaround: use multiple nodenames and make fulls on both nodenames and diffs 
only with one.... yes a pita and a waste of tapes... if only IBM could think of 
something better ;-)

On 27 dec. 2012, at 18:05, "Prather, Wanda" <Wanda.Prather AT ICFI DOT COM> 
wrote:

> Need some help from folks doing "external" NDMP dumps, where TSM triggers the 
> dump but it's done by the NAS device across the fibre to pool defined as 
> TYPE=NDMPDUMP, not a standard TSM storage pool.
> 
> Have a customer installing an EMC (VNX)  NAS which will store multiple 
> millions of .pdf files.  The data change rate is very low, but can't back up 
> via the CIFS mount using the regular client, too many files to scan the 
> filesystem.  And VNX doesn't support snapdiff.
> 
> So the plan is to have the VNX do full and diff dumps under TSM control.
> Customer wants monthly fulls + daily diffs between, and wants to be able to 
> go back a year.
> 
> My experience is with NDMP via TCPIP in a normal TSM storage pool, but the 
> thing I see there is that when you do a new full, the previous diffs don't 
> expire.
> 
> There's no reclaim for a pool defined as TYPE-NDMPDUMP, so how do you handle 
> this without keeping 365 cartridges tied up in the vault?  Is there a good 
> way to blow way those "in between" diffs?
> 
> Thanks and Happy New Year
> 
> Wanda (NDMP is Evil) P
> 
> 
> Wanda Prather  |  Senior Technical Specialist  | 
> Wanda.Prather AT icfi DOT com  |  www.icfi.com ICF International  | 401 E. 
> Pratt St, Suite 2214, Baltimore, MD 21202 | 410.539.1135 (o)

--
Met vriendelijke groeten/Kind Regards,

Remco Post
r.post AT plcs DOT nl
+31 6 248 21 622