Are the HBA's PCI Express? If not the max throughput will be the PCI
bus.
I have two 2Gb HBA's for my VTL and I am not sure it would be much
faster with more. Does your VTL have 4Gb ports and does the VTL engine
have the bus bandwidth to keep up?
Andy Huebner
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Kenny
Sent: Monday, September 10, 2007 1:29 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Maximum throughput with Windows 2003
Group
I am trying to figure out the throughput and servers I need to
implement to get backups done.
I have a new EMC DMX for Exchange (DMX-3 with 120 10K-RPM drives,
Raid-10) I use TSM 5.3 and plan to backup BCV's, mounted on a TSM
server to a proposed VTL.
I plan on implementing IBM Intel boxes running Windows 2003. Each
servers will have fast Dual core processors and 2-4GB's of RAM.
I will be using a 4GB SAN from end to end.
I have 2 questions
1. I plan on having 2 dual ported FC 4GB HBA's per host, 2 HBA ports for
Disk, The other 2 for VTL. Do you think having anymore than 2 ports for
VTL is overkill?
2. Considering the above hardware config and backing up BCV's how much
throughput can I expect from the server?
If I was sizing for tape, I would figure having 2 LTO-4 drives per FC
port, or 4 LTO-4 drives per host.
With VTL, I am not sure? I really don't know the effect of having more
virtual drives.
Any advice on what's required to mount and backup BCV's would be helpful
as well.
Thanks in advance for any feedback.
pat
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