ADSM-L

Re: [ADSM-L] Question about Deduplcation feature with TSM6

2011-10-31 14:37:35
Subject: Re: [ADSM-L] Question about Deduplcation feature with TSM6
From: Dean Landry <DeanLandry AT NOBLETRADE DOT CA>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 31 Oct 2011 14:27:54 -0400
Hi Robert,

Yes, if you are ONLY doing client side deduplication there is no reason to run 
a process on the server, and you can set your identifyprocess to 0 on the 
stgpool.

Dean.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Robert Ouzen
Sent: October-31-11 7:26 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Question about Deduplcation feature with TSM6

Hi to all

I just beginning to test the DE duplication feature with TSM 6 , I did all the 
configuration required

My node name as those  parameters:     dedup=clientorserver (server side)   , 
deduplication YES (client side)

My Storage pool as those parameters:  deduplicate=YES  , identifyprocess=1

As I understand the manual if the nodename is configure with the option 
dedup=clientorserver , during the backup client-side data deduplication 
processing, duplicates are identified on the backup-archive client.

So why in the query process I see:  need to change the parameter:   
identifyprocess=0   ????

sm: POSTBACK>q pr

Process     Process Description      Status
Number
-------     --------------------     
-------------------------------------------------
    119     Identify Duplicates      Storage pool: DEDUP6. Volume: NONE. State: 
idle.
                                      State Date/Time: 10/31/2011 12:58:05. 
Current
                                      Physical File(bytes): 0. Total Files 
Processed:
                                      4. Total Duplicate Extents Found: 0. Total
                                      Duplicate Bytes Found: 0.

Any help  or tips on this matter will be appreciate

Here the output of a backup test
10/31/2011 12:58:08      ANE4952I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects inspected:      734 (SESSION: 11856)
10/31/2011 12:58:08      ANE4954I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects backed up:      513 (SESSION: 11856)
10/31/2011 12:58:08      ANE4958I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects updated:          0 (SESSION: 11856)
10/31/2011 12:58:08      ANE4960I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects rebound:          0 (SESSION: 11856)
10/31/2011 12:58:08      ANE4957I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects deleted:          0 (SESSION: 11856)
10/31/2011 12:58:08      ANE4970I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects expired:          0 (SESSION: 11856)
10/31/2011 12:58:08      ANE4959I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of objects failed:           0 (SESSION: 11856)
10/31/2011 12:58:08      ANE4982I (Session: 11856, Node: DEDUPNODE)  ANE4982I 
Total
                          objects deduplicated:             337 (SESSION: 11856)
10/31/2011 12:58:08      ANE4977I (Session: 11856, Node: DEDUPNODE)  ANE4977I 
Total
                          number of bytes inspected:      301.22 MB (SESSION:
                          11856)
10/31/2011 12:58:08      ANE4975I (Session: 11856, Node: DEDUPNODE)  ANE4975I 
Total
                          number of bytes processed:      244.40 MB (SESSION:
                          11856)
10/31/2011 12:58:08      ANE4984I (Session: 11856, Node: DEDUPNODE)  ANE4984I 
Total
                          bytes before deduplication:     288.07 MB (SESSION:
                          11856)
10/31/2011 12:58:08      ANE4198I (Session: 11856, Node: DEDUPNODE)  Total bytes
                          after deduplication:         244.15 MB(SESSION: 11856)
10/31/2011 12:58:08      ANE4961I (Session: 11856, Node: DEDUPNODE)  Total 
number
                          of bytes transferred: 244.40 MB (SESSION: 11856)
10/31/2011 12:58:08      ANE4963I (Session: 11856, Node: DEDUPNODE)  Data 
transfer
                          time:                    3.31 sec (SESSION: 11856)
10/31/2011 12:58:08      ANE4966I (Session: 11856, Node: DEDUPNODE)  Network 
data
                          transfer rate:        75,555.49 KB/sec (SESSION: 
11856)
10/31/2011 12:58:08      ANE4967I (Session: 11856, Node: DEDUPNODE)  Aggregate 
data
                          transfer rate:      9,992.35 KB/sec (SESSION: 11856)
10/31/2011 12:58:08      ANE4968I (Session: 11856, Node: DEDUPNODE)  Objects
                          compressed by:                    0% (SESSION: 11856)
10/31/2011 12:58:08      ANE4981I (Session: 11856, Node: DEDUPNODE)  ANE4981I
                          Deduplication reduction:              15.25%% 
(SESSION:
                          11856)
10/31/2011 12:58:08      ANE4976I (Session: 11856, Node: DEDUPNODE)  ANE4976I 
Total
                          data reduction ratio:           18.87%% (SESSION: 
11856)
10/31/2011 12:58:08      ANE4964I (Session: 11856, Node: DEDUPNODE)  Elapsed
                          processing time:            00:00:25 (SESSION: 11856)

T.I.A Regards

Robert

Environment: TSM server V6.3.2.0
                             TSM client  V6.3.0





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