We are definitely anxious to see file-level granularity. This
(NDMP support) is something that Legato has had for well over a
year now, so TSM is a bit behind in its support. Given the
success of Network Appliance, I would think that there is
becoming a large enough user base that is interested in this
support.
-- Tom
Thomas A. La Porte
DreamWorks SKG
tlaporte AT anim.dreamworks DOT com
On Tue, 23 Apr 2002, Don France (TSMnews) wrote:
>You've just about gottit all. There is some concern about this whole thing;
>currently, you are limited to image backups using NDMP; if you want
>file-level granularity, you must use NFS mount to access the file system
>from a supported b/a-client... not as pretty as you'd like, but that's the
>way it is. Then, too, you are limited to NAS filer; Auspex and other
>filers are not supported.
>
>The storage pool limitation comes from the format used to store the data;
>they "invented" a new concept/format for NDMP storage pools, so must be kept
>segregated from "standard" storage pools; I THINK you can still use "backup
>stg" command -- but you cannot intermix the different types of primary
>storage pools in a common copy-pool.
>
>IBM/Tivoli is wondering how much market there is to justify expanding this
>support -- (a) file-level granularity and/or (b) other filers. IMHO, I'd
>want to see file-level granularity. Comments can be posted here...
>
>Don France
>Technical Architect - Tivoli Certified Consultant
>
>Professional Association of Contract Employees (P.A.C.E.)
>San Jose, CA
>(408) 257-3037
>don_france AT att DOT net
>
>
>
>----- Original Message -----
>From: "Gerald Wichmann" <gwichman AT ATTBI DOT COM>
>To: <ADSM-L AT VM.MARIST DOT EDU>
>Sent: Wednesday, April 17, 2002 9:47 AM
>Subject: TDP for NDMP
>
>
>> Has anyone used and had any experiences with NDMP backups? I'm curious
>> what kind of experiences you've had using the product. Pros/cons, etc..
>>
>> I've been reading the admin guide section on it and it seems like a
>> whole other beast to what I'm used to with TSM. E.g. your NDMP file
>> server has to be attacked to the tape drive. Seems like this would be
>> undesirable if you had a lot of file servers. Would you have to buy a
>> comparative # of tape drives? Or how many tape drives could you share
>> between your file servers and TSM server?
>>
>> Theres a comment about "you cannot backup a storage pool used for NDMP
>> backups". Does this mean you can't create a copypool and 2nd copy of the
>> backed up data?
>>
>> Do the NDMP backups only backup the entire file server and restore the
>> entire file server? I guess it's not clear to me on what level of
>> granularity there is in backing up NDMP file servers.
>>
>> Seems like NDMP backups require their own TSM domain/policyset/etc
>> structure as well.
>>
>> Also I understand it only works with Network Appliance NAS devices?
>>
>> Appreciate anyone with practical knowledge to comment on their
>> experience and perhaps clarify some of my questions above.. thank-you
>
>
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