Join IIUG
 for   
 

Informix News
18 Nov 13 - ZDNet - Top 20 mobile skills in demand... Read
09 Sep 13 - telecompaper - Shaspa and Tatung have shown a new smart home platform at Ifa in Berlin. Powered by the IBM Informix software... Read
06 Sep 13 - IBM data magazine - Mission Accomplished - Miami, Florida will be the backdrop for the 2014 IIUG Informix Conference... Read
01 Feb 13 - IBM Data Magazine - Are your database backups safe? Lester Knutsen (IBM Champion) writes about database back up safety using "archecker"... Read
14 Nov 12 - IBM - IBM's Big Data For Smart Grid Goes Live In Texas... Read
3 Oct 12 - The Financial - IBM and TransWorks Collaborate to Help Louisiana-Pacific Corporation Achieve Supply Chain Efficiency... Read
28 Aug 12 - techCLOUD9 - Splunk kicks up a SaaS Storm... Read
10 Aug 12 - businessCLOUD9 - Is this the other half of Cloud monitoring?... Read
3 Aug 12 - IBM data management - Supercharging the data warehouse while keeping costs down IBM Informix Warehouse Accelerator (IWA) delivers superior performance for in-memory analytics processing... Read
2 Aug 12 - channelbiz - Oninit Group launches Pay Per Pulse cloud-based service... Read
28 May 12 - Bloor - David Norfolk on the recent Informix benchmark "pretty impressive results"... Read
23 May 12 - DBTA - Informix Genero: A Way to Modernize Informix 4GL Applications... Read
9 Apr 12 - Mastering Data Management - Upping the Informix Ante: Advanced Data Tools... Read
22 Mar 12 - developerWorks - Optimizing Informix database access... Read
14 Mar 12 - BernieSpang.com - International Informix User Group set to meet in San Diego... Read
1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access... Read
26 Feb 12 - BernieSpan.com - Better results, lower cost for a broad set of new IBM clients and partners... Read
24 Feb 12 - developerWorks - Informix Warehouse Accelerator: Continuous Acceleration during Data Refresh... Read
6 Feb 12 - PRLOG - Informix port delivers unlimited database scalability for popular SaaS application ... Read
2 Feb 12 - developerWorks - Loading data with the IBM Informix TimeSeries Plug-in for Data Studio... Read
1 Feb 12 - developerWorks - 100 Tech Tips, #47: Log-in to Fix Central... Read
13 Jan 12 - MC Press online - Informix Dynamic Server Entices New Users with Free Production Edition ... Read
11 Jan 12 - Computerworld - Ecologic Analytics and Landis+Gyr -- Suitors Decide to Tie the Knot... Read
9 Jan 12 - planetIDS.com - DNS impact on Informix / Impacto do DNS no Informix... Read
8 Sep 11 - TMCnet.com - IBM Offers Database Solution to Enable Smart Meter Data Capture... Read
1 Aug 11 - IBM Data Management Magazine - IIUG user view: Happy 10th anniversary to IBM and Informix... Read
8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read
31 May 11 - Smart Grid - The meter data management pitfall utilities are overlooking... Read
27 May 11 - IBM Data Management Magazine - IIUG user view: Big data, big time ( Series data, warehouse acceleration, and 4GLs )... Read
16 May 11 - Business Wire - HiT Software Announces DBMoto for Enterprise Integration, Adds Informix. Log-based Change Data Capture... Read
21 Mar 11 - Yahoo! Finance - IBM and Cable&Wireless Worldwide Announce UK Smart Energy Cloud... Read
14 Mar 11 - MarketWatch - Fuzzy Logix and IBM Unveil In-Database Analytics for IBM Informix... Read
11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read
9 Mar 11 - DBTA - Database Administration and the Goal of Diminishing Downtime... Read
2 Feb 11 - DBTAs - Informix 11.7 Flexible Grid Provides a Different Way of Looking at Database Servers... Read
27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions... Read
25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Read
12 Oct 10 - Database Trends and Applications - Informix 11.7: The Beginning of the Next Decade of IBM Informix... Read
20 Sep 10 - planetIDS.com - ITG analyst paper: Cost/Benefit case for IBM Informix as compared to Microsoft SQL Server... Read
20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Read
20 Jul 10 - IBM Announcements - Software withdrawal: Elite Support for Informix Ultimate-C Edition... Read
24 May 10 - eWeek Europe - IBM Supplies Database Tech For EU Smart Grid... Read
23 May 10 - SiliconIndia - IBM's smart metering system allows wise use of energy... Read
21 May 10 - CNET - IBM to help people monitor energy use... Read
20 May 10 - ebiz - IBM Teams With Hildebrand To Bring Smart Metering To Homes Across Britain... Read
19 May 10 - The New Blog Times - Misurare il consumo energetico: DEHEMS è pronto... Read
19 May 10 - ZDNet - IBM software in your home? Pact enables five-city smart meter pilot in Europe... Read
17 March 10 - ZDNet (blog) David Morgenstern - TCO: New research finds Macs in the enterprise easier, cheaper to manage than... Read
17 March 2010 - Virtualization Review - ...key components of Big Blue's platform to the commercial cloud such as its WebSphere suite of application ser vers and its DB2 and Informix databases... Read
10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read


End of Support Dates

IIUG on Facebook IIUG on Twitter

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum

Re: Smart Blob Space Size

Posted By: Walter Lowich
Date: Monday, 10 March 2008, at 7:24 p.m.

In Response To: Smart Blob Space Size (Andrus, Gary)

I am going to look into this myself, as the amount of free space listed seems to be far too small right from the start, even on systems that have no smart blobs.

If I find anything out, i will let you know.

Walter Lowich

"Andrus, Gary" <andrusg@aetna.com> wrote:
I'm reviewing some space monitors that were previously set up in our=0D=0As=
ystems for notification when we hit a percentage threshold for=0D=0Adiffere=
nt dbspaces=2E I'm curious about the calculations that were put in=0D=0Afo=
r Smart BLOB space usage=2E=0D=0A=0D=0AWhat "space usage" reports should ex=
ist for an sbspace and what is the=0D=0Acorrect formula for each? Do we ne=
ed separate one for each of the=0D=0Afollowing?=0D=0A=0D=0A Meta Data Us=
ed/Free=0D=0A User Data Used/Free=0D=0A Total Data Used/Free=0D=0A=0D=
=0AI looked online and I've seen several threads for space usage queries,=
=0D=0Abut didn't find any that clearly answered this item specifically=2E =
(If=0D=0Ayou know of one, just point me there=2E) I found this thread that=
uses=0D=0Audsize, but it's quite out of date (Dec=2E 2000, version 9=2E21)=
and I=0D=0Awasn't sure if the SQL was correct=2E=0D=0A=0D=0Ahttp://groups=
=2Egoogle=2Ecom/group/comp=2Edatabases=2Einformix/browse_thread/thr=0D=0Aea=
d/21dc4618526fa087/4ca3dfabf7d283f6?hl=3Den&lnk=3Dgst&q=3Dudsize#4ca3dfabf7=
d=0D=0A283f6=0D=0A=0D=0AI didn't see anything in the IIUG software reposito=
ry with the meta data=0D=0Acalculations=2E I also saw no mention of udsize=
in the Admin Guide or=0D=0AAdmin Reference Manual while looking for infor=
mation in the Informix=0D=0Alibrary:=0D=0A=0D=0Ahttp://www-306=2Eibm=2Ecom/=
software/data/informix/pubs/library/ids_100=2Ehtml=0D=0A=0D=0AMy environmen=
t information:=0D=0A=0D=0AIDS: 10=2E00=2EUC7X1=0D=0AO/S: SunOS 5=2E10 Gener=
ic_125100-05=0D=0A=0D=0ASysmaster Query (output for dbsnum 9, the only sbsp=
ace):=0D=0A=0D=0A SELECT C=2Edbsnum, name, is_sbspace, SUM(chksize) ChkS=
ize,=0D=0A SUM(nfree) NFree, SUM(mdsize) MdSize,=0D=0A =
SUM(udsize) UdSize, SUM(udfree) UdFree=0D=0A FROM sysmaster:sysdbsp=
aces d, sysmaster:syschunks c=0D=0A WHERE d=2Edbsnum=3Dc=2Edbsnum=0D=0A=

GROUP BY 1, 2, 3=0D=0A ORDER BY 1=0D=0A=0D=0A Dbs name is_=
sbspace chksize nfree mdsize udsize udfree=0D=0A =2E=2E=2E=0D=0A 9=

sbdefault 1 1050000 50505 141817 908121 318216=0D=0A =2E=
=2E=2E=0D=0A=0D=0Aonstat -d output:=0D=0A=0D=0A dbs offset size =

free bpages=0D=0A =2E=2E=2E=0D=0A 9 0 500000 =

49994 441831=0D=0A Metadata 58116 0 5811=
6=0D=0A 9 500000 250000 99992 233145=0D=0A =
Metadata 16852 8 16852=0D=0A 9 500000 250000 =
168230 233145=0D=0A Metadata 16852 500 16852=
=0D=0A 9 750000 50000 0 0=0D=0A Metad=
ata 49997 49997 49997=0D=0A =2E=2E=2E=0D=0A=0D=0AOnstat -d show=
s a total size of 1050000, same as chksize above=2E=0D=0AOnstat -d shows a =
total free space of 318216, same as udfree above=2E=0D=0AOnstat -d shows a =
Metadata size of 141817, same as mdsize above=2E=0D=0AOnstat -d shows a Met=
adata free space of 50505, same as nfree above=2E=0D=0A=0D=0AThere is no on=
stat -d output that matches the udsize (though subtracting=0D=0Amdsize from=
chksize leaves a difference of 8 pages - overhead maybe)=2E=0D=0A=0D=0AWhe=
n calculating metadata used space for an sbspace, this seems straight=0D=0A=
forward=2E=0D=0A=0D=0A Meta Data Used: (141817 - 50505) / 141817 =3D 64=
=2E39%=0D=0A=0D=0AShould there be a difference between user space used and =
total space=0D=0Aused?=0D=0AWhich of the following should be used for each =
calculation?=0D=0A=0D=0A A=2E (mdsize-nfree)/mdsize =3D> (141=
817-50505)/141817 =3D=0D=0A64=2E39%=0D=0A B=2E (chksize-udfree)/chksiz=
e =3D> (1050000-318216)/1050000=3D=0D=0A69=2E69%=0D=0A C=2E (chk=
size-(udfree+nfree))/chksize =3D> (1050000-368213)/1050000=3D=0D=0A64=2E93%=
=0D=0A D=2E (udsize -udfree)/udsize =3D> (908121-318216)/908121=
=3D=0D=0A64=2E96%=0D=0A E=2E (udsize -(udfree+nfree))/udsize =3D> (90=
8121-368213)/908121 =3D=0D=0A59=2E45%=0D=0A=0D=0AI made the assumption tha=
t calculation A is accurate for meta data=0D=0Aspace=2E=0D=0AI made the ass=
umption that calculation C is accurate for total space=0D=0Ausage=2E=0D=0AI=
made the assumption that calculation D is accurate for user space=0D=0Ausa=
ge=2E=0D=0A=0D=0ACalculation B seems to be looking at the full chunk size, =
but only=0D=0Asubtracting the user data space used=2E=0D=0A=0D=0ACalculatio=
n E seems to be using the user data size, but subtracting both=0D=0Auser an=
d meta data space used=2E=0D=0A=0D=0AAre my assumptions correct? If so, sp=
litting sbspaces into "META" and=0D=0A"USER" data (I didn't put in the TOTA=
L calculation for the sbspaces),=0D=0Aand all non sbspaces as "REGULAR" spa=
ces, does this UNION query bring=0D=0Aback accurate data for all of the dif=
ferent dbspaces on the server?=0D=0A=0D=0Aselect name dbspace,=0D=0A =
is_sbspace,=0D=0A "REG" space_type,=0D=0A sum(chksize) chunk_si=
ze,=0D=0A sum(nfree) chunk_free,=0D=0A sum(chksize)-sum(nfree=
) userdata_used,=0D=0A (((sum(chksize)-sum(nfree)) / sum(chksize)) * =
100)::DECIMAL(5,2)=0D=0Apct_userdata_used=0D=0A from sysmaster:sysdbspaces=
d, sysmaster:syschunks c=0D=0A where d=2Edbsnum=3Dc=2Edbsnum=0D=0A AND i=
s_sbspace <> 1=0D=0Agroup by 1,2=0D=0AUNION=0D=0Aselect name dbspace,=0D=0A=

is_sbspace,=0D=0A "USR" space_type,=0D=0A sum(udsize) us=
erdata_size,=0D=0A sum(udfree) userdata_free,=0D=0A sum(udsize)=
-sum(udfree) userdata_used,=0D=0A (((sum(udsize)-sum(udfree)) / sum(u=
dsize)) * 100)::DECIMAL(5,2)=0D=0Apct_userdata_used=0D=0A from sysmaster:s=
ysdbspaces d, sysmaster:syschunks c=0D=0A where d=2Edbsnum=3Dc=2Edbsnum=0D=
=0A and is_sbspace=3D1=0D=0Agroup by 1,2=0D=0AUNION=0D=0Aselect name dbsp=
ace,=0D=0A is_sbspace,=0D=0A "MET" space_type,=0D=0A sum(=
mdsize) metadata_size,=0D=0A sum(nfree) metadata_free,=0D=0A su=
m(mdsize)-sum(nfree) metadata_used,=0D=0A (((sum(mdsize)-sum(nfree)) =
/ sum(mdsize)) * 100)::DECIMAL(5,2)=0D=0Apct_userdata_used=0D=0A from sysm=
aster:sysdbspaces d, sysmaster:syschunks c=0D=0A where d=2Edbsnum=3Dc=2Edbs=
num=0D=0A and is_sbspace=3D1=0D=0Agroup by 1,2=0D=0Aorder by 1,2;=0D=0A=
=0D=0AAny thoughts or suggestions would be appreciated=2E=0D=0A=0D=0AThank =
you,=0D=0AGary Andrus=0D=0A=0D=0AThis e-mail may contain confidential or pr=
ivileged information=2E If=0Ayou think you have received this e-mail in err=
or, please advise the=0Asender by reply e-mail and then delete this e-mail =
immediately=2E=0AThank you=2E Aetna

*******************************************************************************
Forum Note: Use "Reply" to post a response in the discussion forum.

See you at the IIUG Informix 2008 Conference
The Power Conference for Informix Professionals
April 27 - 30, 2008 Marriott Overland Park (Kansas City), Kansas
http://www.iiug.org/conf
Registration Now Open!!

---------------------------------
Looking for last minute shopping deals? Find them fast with Yahoo! Search.

Messages In This Thread

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum is maintained by Administrator with WebBBS 5.12.