ADSM-L

Re: Consumption of new scratch tape increase abnormally

2002-09-12 10:00:32
Subject: Re: Consumption of new scratch tape increase abnormally
From: Jane Bamberger <jane.bamberger AT BASSETT DOT ORG>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 12 Sep 2002 09:55:33 -0400
Hi,

We had this problem because our expiration process was never completing. We
were deleting database backups to gain scratch tapes to get one more night's
backups out. We had it set expiration to run automatically for several hours
a day, and it was never finishing past the mail server - which has a lot of
expirations daily. After working for about a week with IBM, I set it to run
continuously and it took 4 days to complete - I also found one server that
the admin had set his files to never expire - so his occupancy (MSMAIL was
one of the applications) were getting HUGE and not expiring at all! After I
let the expiration run for the 4 days - I gained back literally hundreds of
scratch tapes, and expiration takes about 3-4 hours daily.

I hope this helps,

Jane
%%%%%%%%%%%%%%%%%%%%%%
Jane Bamberger
IS Department
Bassett Healthcare
607-547-4750
----- Original Message -----
From: "Lai, Kathy KL" <Kathy.KL.Lai AT PCCW DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Wednesday, September 11, 2002 9:47 PM
Subject: Re: Consumption of new scratch tape increase abnormally


> Dear all,
>
> Can anyone help me on this issue? It's quite urgent as I am run out of
tapes
> already. Thanks a lot!!!
>
> Kathy Lai
>
> -----Original Message-----
> From: Lai, Kathy KL
> Sent: Monday, September 09, 2002 9:47 AM
> To: 'ADSM: Dist Stor Manager'
> Subject: RE: Consumption of new scratch tape increase abnormally
>
>
> Dear all,
>
> As I am new to use ADSM, the setup of the ADSM server is by some other
body.
> Therefore, would anyone can explain more details to me that what can I do
> after I go the result from the SQL that Paul suggested to run? What kind
of
> result show that I have some problem in my operation? And what should I do
> to solve it? I think there should be some problem, otherwise, tapes
> consumption should not increase so significant without much data growth.
> Thanks a lot!
>
> > Regards,
> > Kathy Lai
>
> -----Original Message-----
> From: Seay, Paul [mailto:seay_pd AT NAPTHEON DOT COM]
> Sent: Wednesday, September 04, 2002 2:17 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Consumption of new scratch tape increase abnormally
>
>
> What the second SQL does is lists the tapes that are less than 40%
utilized.
> I am betting you have collocation turned on by file space or something
like
> that.  Check that first before we go any further.
>
> If you have collocation turned on, you did it for a reason.  There is a
> price to pay and you are experiencing it.  You can cause the tapes to fill
> up by turning collocation off and doing move data commands to force the
> tapes to move their data to other tapes and then scratch.  There is
another
> option.  You can create another storage pool with collocation turned off
if
> this a primary pool problem.  Then move all the tapes that have a very
small
> amount of data on them to that pool.  Consider how this may affect your
> backup stgpool commands also.  Remember you cannot move a copy pool to
> another copy pool.
>
> I will help if I can.
>
> Paul D. Seay, Jr.
> Technical Specialist
> Naptheon Inc.
> 757-688-8180
>
>
> -----Original Message-----
> From: Lai, Kathy KL [mailto:Kathy.KL.Lai AT PCCW DOT COM]
> Sent: Monday, September 02, 2002 3:21 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Consumption of new scratch tape increase abnormally
>
>
> Dear Paul,
>
> Thanks for you help. I've got the information base on the SQL you
provided.
> How can I analyze my information so that I can know where my tapesss
gone...
> I got around 1400 tapes from the result of the second SQL. Does it mean
that
> I have great problem on that? If yes, how can I solve it? Thank you very
> much.
>
> > Regards,
> > Kathy Lai
>
>
> -----Original Message-----
> From: Seay, Paul [mailto:seay_pd AT NAPTHEON DOT COM]
> Sent: Thursday, August 29, 2002 1:16 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Consumption of new scratch tape increase abnormally
>
>
> "I know the name of this tune."
>
> Is expiration running?
> What is the reclaim percent for your pools?
>
> Issue this command to see how your volumes fair on utilization on average:
>
> Select cast(avg(pct_utilized) as decimal(5,2)), stgpool_name,
> count(stgpool_name) from volumes group by stgpool_name order by 1
>
> Issue this one to figure out what the bad ones are:
>
> Select cast(volume_name as char(7)) as "Volume",
> cast(substr(stgpool_name,1,25) as char(25)) as "Storage Pool
",
> cast(pct_utilized as decimal(5,2)) as "% Util", cast(status as char(10))
as
> "Status   ", cast(access as char(10)) as "Access    " from volumes where
> pct_utilized < 40 order by 3
>
> And "my all time favorite", find out the tapes that were checked in
private
> that should be scratch:
>
> select volume_name from libvolumes where status='Private' and
> libvolumes.volume_name not in (select volume_name from volumes) and
> libvolumes.volume_name not in (select volume_name from volhistory where
type
> in ('BACKUPFULL', 'BACKUPINCR', 'DBSNAPSHOT', 'EXPORT'))
>
> Hope this helps.  The quotes are from the Fifth Element, which character?
>
>
>
>
> Paul D. Seay, Jr.
> Technical Specialist
> Naptheon Inc.
> 757-688-8180
>
>
> -----Original Message-----
> From: Lai, Kathy KL [mailto:Kathy.KL.Lai AT PCCW DOT COM]
> Sent: Wednesday, August 28, 2002 9:46 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Consumption of new scratch tape increase abnormally
>
>
> Dear all,
>
> I am using ADSM v3.1 with HSM and DRM option. Recently ( this half year )
I
> found that the consumption of new scratch tape increase abnormally. I have
> to initial 180 tapes in only 23 days!!! However, I have check that the
> backup volume doesn't have great change. What is the cause of the
scenerio?
> Will there be any problem in my daily operation so that tapes that have
been
> initilize cannot be reuse so the consumption of new tapes increase so
> significantly? Please help as it is a quite urgent issue as my management
> will not invest anymore to buy new tapes if the root cause of this
scenerio
> cannot be found!!! Thank you very much.
>
> > Regards,
> > Kathy Lai
> > Outsourcing & Managed Services
> > Pacific Century CyberWorks
> > * 852-8101 2790
> > kathy.kl.lai AT pccw DOT com
> >
>