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2 Intern
•
214 Posts
1
2576
February 20th, 2015 10:00
Data Domain directly level deduplication report
Hi there,
Is there anyway I can get a report on the deduplication level at a directory level?
Thanks,
Ed
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umichklewis
4 Apprentice
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1.2K Posts
0
February 20th, 2015 12:00
Sure -
Use "filesys show compression
recursive
", where path is the directory you wish to get statics on.
On my DD860:
sysadmin@dd-test# filesys show compression /data/col1/cifs_sql/BMHFAS recursive last 1 day
/data/col1/cifs_sql/BMHFAS/BMHFAS_msdb_Full_201502200400.safe: mtime: 1424422807887335000, bytes: 49,812,480, g_comp: 5,303,381, l_comp: 5,271,771, meta-data: 17,456, bytes/storage_used: 9.4
/data/col1/cifs_sql/BMHFAS/BMHFAS_master_Full_201502200400.safe: mtime: 1424422805264819000, bytes: 7,793,664, g_comp: 625,954, l_comp: 518,488, meta-data: 2,252, bytes/storage_used: 15.0
/data/col1/cifs_sql/BMHFAS/BMHFAS_model_Full_201502200400.safe: mtime: 1424422805509809000, bytes: 5,830,656, g_comp: 461,242, l_comp: 348,727, meta-data: 1,580, bytes/storage_used: 16.6
/data/col1/cifs_sql/BMHFAS/BMHFAS_BESTSYS_Full_201502200400.safe: mtime: 1424422806320493000, bytes: 5,697,536, g_comp: 609,477, l_comp: 499,890, meta-data: 2,084, bytes/storage_used: 11.4
/data/col1/cifs_sql/BMHFAS/BMHFAS_ReportServer_Full_201502200400.safe: mtime: 1424422808070944000, bytes: 9,891,840, g_comp: 445,371, l_comp: 328,452, meta-data: 1,608, bytes/storage_used: 30.0
/data/col1/cifs_sql/BMHFAS/BMHFAS_ReportServerTempDB_Full_201502200400.safe: mtime: 1424422808714263000, bytes: 5,696,512, g_comp: 445,017, l_comp: 308,430, meta-data: 1,552, bytes/storage_used: 18.4
/data/col1/cifs_sql/BMHFAS/BMHFAS_Sage_FAS_Full_201502200400.safe: mtime: 1424422831615641000, bytes: 966,536,192, g_comp: 9,515,081, l_comp: 9,511,266, meta-data: 27,648, bytes/storage_used: 101.3
The above output shows the stats for the backup files written in the last day.
Let us know if that helps!
Karl
edhoward
2 Intern
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214 Posts
0
February 22nd, 2015 23:00
Thanks again but I can't access that link.
Nayaks1
77 Posts
1
February 22nd, 2015 23:00
try this
https://support.emc.com/kb/181054
Nayaks1
77 Posts
0
February 22nd, 2015 23:00
This might help
https://emc--c.na5.visual.force.com/apex/KB_HowTo?id=kA0700000004S1s
edhoward
2 Intern
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214 Posts
0
February 22nd, 2015 23:00
Great thanks for this, out of interest do you know what g_comp and l_comp are? Looks like compression.
edhoward
2 Intern
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214 Posts
0
February 23rd, 2015 00:00
Excellent thanks, do you think I could write a Perl script to get a report on all the directories in one go?
Nayaks1
77 Posts
0
February 23rd, 2015 02:00
To be honest I haven't tried that. It never crossed my mind either and right now I don't have a box to test. Let's see what others have to say.
edhoward
2 Intern
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214 Posts
0
February 23rd, 2015 02:00
This only comes up once in a blue moon so I'm just going to run it manually, going take as long as writing the script! Thanks for your help.
umichklewis
4 Apprentice
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1.2K Posts
0
February 25th, 2015 09:00
g_comp is Global Compress, l_comp is Local Compression, akin to the following:
sysadmin@ddtest# mtree show compression /data/col1/cifs_sql
From: 2015-02-18 17:00 To: 2015-02-25 17:00
Pre-Comp Post-Comp Global-Comp Local-Comp Total-Comp
(GiB) (GiB) Factor Factor Factor
(Reduction %)
------------- -------- --------- ----------- ---------- -------------
Written:*
Last 7 days 17675.7 2028.1 7.9x 1.1x 8.7x (88.5)
Last 24 hrs 2305.5 207.3 10.7x 1.0x 11.1x (91.0)
------------- -------- --------- ----------- ---------- -------------
* Does not include the effects of pre-comp file deletes/truncates
since the last cleaning on 2015/02/21 17:52:58.
Key:
Pre-Comp = Data written before compression
Post-Comp = Storage used after compression
Global-Comp Factor = Pre-Comp / (Size after de-dupe)
Local-Comp Factor = (Size after de-dupe) / Post-Comp
Total-Comp Factor = Pre-Comp / Post-Comp
Reduction % = ((Pre-Comp - Post-Comp) / Pre-Comp) * 100