[ADSM-L] SV: Performance question

Hi Steven,
I'm thinking about the same thing. And yes the data can be recreated but will 
cost money because the data comes from another company. 

Again, the time is not a problem. If it takes 50 days to recovery the data. 
They will probably say OK for it. It is just that I don't wanna have a 
backup/restore keep on going forever. 

I'm probably need to sit down with the customer and tell him this before it 
starts.

Best Regards
Christian Svensson

Cell: +46-70-325 1577
E-mail: Christian.Svensson AT cristie DOT se
Skype: cristie.christian.svensson
________________________________________
Från: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] f&#246;r Steven 
Langdale [Steven.Langdale AT CAT DOT COM]
Skickat: den 28 maj 2009 15:06
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Re: Performance question

Why back it up at all? can't you just secure the copy the customer gets
every quarter and re-install if needed?



Steven Langdale
Global Information Services
EAME SAN/Storage Planning and Implementation
( Phone : +44 (0)1733 584175
( Mob: +44 (0)7876 216782
ü Conference: +44 (0)208 609 7400 Code: 331817
+ Email: steven.langdale AT cat DOT com





Christian Svensson <Christian.Svensson AT CRISTIE DOT SE>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
28/05/2009 13:51
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


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ADSM-L AT VM.MARIST DOT EDU
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Subject
[ADSM-L] SV: Performance question




Caterpillar: Confidential Green Retain Until: 27/06/2009



Hi,
I did talk to them and we maybe can get the function to send direct SCSI
commands over the fiber. That mean we probably need to have the TSM Server
onsite but the library on a different location.
That can be an option maybe.

The customer have demand that the "backup" is on another site then the
production servers. :(

Best Regards
Christian Svensson

Cell: +46-70-325 1577
E-mail: Christian.Svensson AT cristie DOT se
Skype: cristie.christian.svensson
________________________________________
Från: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] f&#246;r Clark,
Robert A [Robert.Clark AT PROVIDENCE DOT ORG]
Skickat: den 28 maj 2009 02:12
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Re: Performance question

We have some lit fiber between two of our locations as well. The WAN guy
came to us on his own, and asked if we'd like to use some of the DWDM
capacity on the fiber to run our SAN across between facilities.

Since we already had FC-IP capable switches, the only incremental cost
would be about 5k$ for the DWDM ports.

The point I'm trying to make: Talk to your WAN folks, and ask them what
is possible. There might be more bandwidth available for the cost of the
ports.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Christian Svensson
Sent: Wednesday, May 27, 2009 4:26 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Performance question

Hi all *SMers
I got a new challenge in a front of me.
Every quarter will I get a large package with 10 000 new files where the
total size is 300 TB of Data (each file is average size 30GB large).
This is static data that will not replace any other files or modified.
The problem is that I can not do any LAN-Free backup over SAN because of
the data and TSM is on different locations (20 Miles between the sites).
The link between the data and my TSM Server is black fiber but I only
have 1 GBit limited speed on this link. Why I don't know...
I don't have any time limit how long time it takes to backup/restore
this files, even if it takes 1 hour or 30 days. The customer don't care.

But as TSM Admin I want to do this backup/restore as fast as possible.

I was thinking of to do a LAN-Free backup but via iSCSI so I sending
larger blocks between server and tape but I don't know if that will give
me any performance benefit then backup as normal incremental backup over
normal TCP/IP network.

My question is, will it go faster to do a backup via iSCSI then regular
LAN Backup?

Best Regards
Christian Svensson

Cell: +46-70-325 1577
E-mail: Christian.Svensson AT cristie DOT se
Skype: cristie.christian.svensson


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