. But I only see
network tranfer rate is very low (about 1-2 MB/s).
Is there method to improve peformance of TSM server ?
- Original Message -
From: Tab Trepagnier [EMAIL PROTECTED]
To: ADSM-L@VM.MARIST.EDU
Sent: Tuesday, March 08, 2005 7:30 AM
Subject: Re: migration and backup
Iain
Laitram, L.L.C.
Iain Barnetson [EMAIL PROTECTED]
Sent by: ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU
03/04/2005 04:24 AM
Please respond to
ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU
To
ADSM-L@VM.MARIST.EDU
cc
Subject
Re: migration and backup
I'm in a similar situation where my
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 [EMAIL PROTECTED]
Nghiatd,
Have your settings before during backup:-
High Migration Threshold : 80 %
Low Migration Threshold : 25 %.
Later , after backups are complete :-
High Migration Threshold : 0 %
Low Migration Threshold : 0 %.
to allow migration to tape to take place.
Bill
nghiatd [EMAIL
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:
I use LTO Gen 2. Its read/write speed is 15-20 MB/s more than network speed
(100Mbps). So migration is faster than backup
- Original Message -
From: John Naylor [EMAIL PROTECTED]
To: ADSM-L@VM.MARIST.EDU
Sent: Friday, March 04, 2005 5:16 PM
Subject: Re: migration and backup
Your disk
I have 2 drive LTO Gen 2. I also try backup directly to tape, but it is
very slow
- Original Message -
From: Iain Barnetson [EMAIL PROTECTED]
To: ADSM-L@VM.MARIST.EDU
Sent: Friday, March 04, 2005 5:24 PM
Subject: Re: migration and backup
I'm in a similar situation where my primary stg
-L@VM.MARIST.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
PROTECTED]
To: ADSM-L@VM.MARIST.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
-L@VM.MARIST.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
to tape
(only one tape) I don't set collocate for tape.
- Original Message -
From: Iain Barnetson [EMAIL PROTECTED]
To: ADSM-L@VM.MARIST.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
I use LTO Gen 2. Its read/write speed is 15-20 MB/s more than network
speed
(100Mbps). So migration is faster than backup
Maybe, but 20% of your 18gb pool is not a lot spare, and I do not think
you will get a continuous migration process anyway. It will reach zero and
then go all the way back to
Sascha,
I currently have a little problem understanding how the switch Migration
requires Backup works for my HSM-Client. I understand that a file can only
be
migrated to TSM when a Backup version of this file already exists on the
server.
Nope. If you define in your MGmtclass
Well, technically, you will have one backup (or more
depending on your policy definition) and one migrated
copy. But to answer your question, yes - you will
have another copy of the file that is the migrated
copy - separate from the backup copy.
--- Sascha Askani [EMAIL PROTECTED] wrote:
Hi
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