ADSM-L

Re: migration and backup

2005-03-04 06:02:20
Subject: Re: migration and backup
From: nghiatd <nghiatd2 AT FPT.COM DOT VN>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 4 Mar 2005 18:12:04 +0700
I don't think "Waiting for mount of offline media" message relative to tape.
It is relative to Diskpool.
I used "q drive",  monitor actlog and I see data still write to tape (only
one tape)
I don't set "collocate" for tape.



----- Original Message -----
From: "Iain Barnetson" <Iain.Barnetson AT HALLIBURTON DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Friday, March 04, 2005 5:47 PM
Subject: Re: migration and backup


So the data was migrating from diskpool to tape?
Is it an "offline" tape that the error relates to?
Can you check your actlog for that time and see if it mentions looking
for a specific tape at that time, then see where the tape is, if it's
set to offline: readonly, offiste, etc.
Is you tape pool set to "collocate"? Looks like the migration was
wanting to put some data ona specific tape and couldn't get access to
it.


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
nghiatd
Sent: 04 March 2005 10:49
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] migration and backup

the problem is first migration, the backup was stopped. Although,
diskpool still has 20% capacity

02/03/2005 06:22:26 A1114I Waiting for mount of offline media.
02/03/2005 06:55:37 Retry # 1 Normal File--> 719,648,279



----- Original Message -----
From: "Iain Barnetson" <Iain.Barnetson AT HALLIBURTON DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Friday, March 04, 2005 5:24 PM
Subject: Re: migration and backup


I'm in a similar situation where my primary stg diskpool is not big
enough to contain a nights backups. I have the migration set to hi=0
lo=0. This means it's constantly migrating but I've 6 dedicated lto2
tape drives so isn't an issue for me.


Regards,
Iain

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
John Naylor
Sent: 04 March 2005 10:17
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] migration and backup

Your disk pool is way too small.
It should be large enough to hold one night's backups If you can't do
that, set your hi mig threshold to a low value say 10 or even lower At
80% your backup fills up the remaining 20% of your pool faster than
migration  can empty it.





nghiatd <nghiatd2 AT fpt.com DOT vn>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
04/03/2005 10:15
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>


To
ADSM-L AT vm.marist DOT edu
cc

Subject
migration and backup






Hi all,

I setup TSM ver 5.2 client on Win 2K that has more than 200 GB data, But
TSM server machine only 20 GB hard disk. So I configure Backuppool
---> Diskpool --->Tapepool.

Diskpool : 18 GB
High Migration Threshold : 80 %
Low Migration Threshold : 0 %.

People said when migration process is started, backup process is still
continuous.
But I view log file ;

02/03/2005 06:22:26 Normal File--> 719,648,279 \\BILL2_200411_2.tar *
Unsuccessful*
02/03/2005 06:22:26 A1114I Waiting for mount of offline media.
02/03/2005 06:55:37 Retry # 1 Normal File--> 719,648,279
\\BILL2_200411_2.tar [Sent]
02/03/2005 06:55:37 ANS1809W Session is lost; initializing session
reopen procedure.
02/03/2005 06:55:53 ... successful
02/03/2005 06:56:16 Normal File--> 726,513,573 \\BILL2_200411_3.tar
[Sent]


So backup was stopped when migration process is started.

Does anyone have idea to backup process still continue ?

Nghiatd



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