<[EMAIL PROTECTED]>
27.12.2002 13:46
Please respond to "ADSM: Dist Stor Manager"
To: [EMAIL PROTECTED]
cc:
Subject:Re: Slow tape to tape performance
Firstly I must ask people to accept my apologisies if this message doesn't
look right..
Firstly I must ask people to accept my apologisies if this message doesn't
look right This is first time I have tried to post a message hear :-)
Just reading through a scenario posted by Michael Wheelock about slow tape
to tape perforance... There are lots of considerations here to take note
o
>I am getting agonizingly slow (~1GB/hr) performance on tape to tape copies
>(such as during reclamations).
What experiments have you performed to try to narrow down the problem?
What results do you see in an experiment where data is copied between the
same two tape drives outside of TSM?
Given th
AM
To: [EMAIL PROTECTED]
Subject: Slow tape to tape performance...
Hi,
I am getting agonizingly slow (~1GB/hr) performance on tape to tape copies
(such as during reclamations). Is this normal? This is a new install,
fairly fresh with some basic policies and copy groups. The server is an AIX
5.1 ML02
ECTED]
Subject: Slow tape to tape performance...
Hi,
I am getting agonizingly slow (~1GB/hr) performance on tape to tape copies
(such as during reclamations). Is this normal? This is a new install,
fairly fresh with some basic policies and copy groups. The server is an AIX
5.1 ML02 7026-M80
Hi,
I am getting agonizingly slow (~1GB/hr) performance on tape to tape copies
(such as during reclamations). Is this normal? This is a new install,
fairly fresh with some basic policies and copy groups. The server is an AIX
5.1 ML02 7026-M80 with 8GB RAM. The tape library is an IBM 3584 with
-7175
-Original Message-
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
Joshua Bassi
Sent: Wednesday, November 20, 2002 1:26 PM
To: [EMAIL PROTECTED]
Subject: Re: tape-to-tape performance
Take a look at the movebatchsize, movesizethresh and bufpoolsize. These
3 options
t remind management that today they are more than ever likely to have to
depend on their DR !
Dwight
-Original Message-
From: Conko, Steven [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 20, 2002 2:35 PM
To: [EMAIL PROTECTED]
Subject: Re: tape-to-tape performance
thanks for tha
-
From: Cook, Dwight E [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 20, 2002 3:22 PM
To: [EMAIL PROTECTED]
Subject: Re: tape-to-tape performance
Is 1.6 TB the amount of "must have/critical" information ?
and is that already compressed ?
Knowing each tape mount runs about 90 seconds,
e offsite.
just some thoughts...
Dwight
-Original Message-
From: Conko, Steven [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 20, 2002 1:26 PM
To: [EMAIL PROTECTED]
Subject: tape-to-tape performance
we run a 3494 tape library with 3590 tape drives. after our backup are
finished, we run a
, TSM Consultant
Cell (831) 595-3962
[EMAIL PROTECTED]
-Original Message-
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]] On Behalf Of
Conko, Steven
Sent: Wednesday, November 20, 2002 11:26 AM
To: [EMAIL PROTECTED]
Subject: tape-to-tape performance
we run a 3494 tape library
Naptheon Inc.
757-688-8180
-Original Message-
From: Conko, Steven [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 20, 2002 2:26 PM
To: [EMAIL PROTECTED]
Subject: tape-to-tape performance
we run a 3494 tape library with 3590 tape drives. after our backup are
finished, we run a backup
we run a 3494 tape library with 3590 tape drives. after our backup are
finished, we run a backup stgpool to a copy pool on about 1.6TB of data. as
you can imagine, even with 8 drives this takes some time. are there any
server, device or other parameters we can tune to improve the tape-to-tape
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