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I'm on a quest to develop a excellent NBU sizing tool but I'm hitting some
snags along the way. Was wondering if anyone out there already had anythin=
g
they'd like to share.
Right now, I'm doing it in Excel but I feel that it might be too limiting,
esp since I don't know VB.
Right now my sizing tool has separate tabs that provides the
- *reference sheet* containing the total speeds for various bus
speeds, interface speeds and drive speeds
- *library configurations *: (number of drives and # of drives to FC
connections illustrating the total drive throughput as well as the total=
FC
throughput)
- *server configurations *: (bus speeds, # of interfaces of various
type such as HBA or GigE and then their total transfer rate and how many
drives that they'd be able to push)
- *client configurations *: (amount of data on type of storage, backup
window, min speeds to make window, how many drives would be required to =
make
window, numbers and types of interfaces)
Some of the basic components that I'm including right now are the basic
calculations like:
(total amount of data) / (backup window) =3D (GB/hr min transfer rate to ma=
ke
window)
.. however this is very simple and doesn't take into account MPX or
Multi-streaming nor # of clients per policy.
This is where I'm hitting some resistance, putting together a formula that
can express this information properly.
I'm trying to get this tool to be useful for either an already existing
environment or a totally new one.
--
Brian J. Greenberg
bjgreenberg AT gmail DOT com
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<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">I'm on =
a quest to develop a excellent NBU sizing tool but I'm hitting some snags a=
long the way. Was wondering if anyone out there already had anything =
they'd like to share.=20
</span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial"> <=
/span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">Right n=
ow, I'm doing it in Excel but I feel that it might be too limiting, esp sin=
ce I don't know VB.</span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial"> <=
/span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">Right n=
ow my sizing tool has separate tabs that provides the </span></p>
<ul type=3D"disc">
<li style=3D"MARGIN: 0in 0in 0pt"><strong><span style=3D"FONT-FAMILY: Arial=
">reference sheet</span></strong> <span style=3D"FONT-FAMILY: Arial">contai=
ning the total speeds for various bus speeds, interface speeds and drive sp=
eeds=20
</span>
<li style=3D"MARGIN: 0in 0in 0pt"><strong><span style=3D"FONT-FAMILY: Arial=
">library configurations</span> </strong><span style=3D"FONT-FAMILY: Arial"=
>: (number of drives and # of drives to FC connections illustrating the tot=
al drive throughput as well as the total FC throughput)=20
</span>
<li style=3D"MARGIN: 0in 0in 0pt"><strong><span style=3D"FONT-FAMILY: Arial=
">server configurations</span> </strong><span style=3D"FONT-FAMILY: Arial">=
: (bus speeds, # of interfaces of various type such as HBA or GigE and then=
their total transfer rate and how many drives that they'd be able to push)=
=20
</span>
<li style=3D"MARGIN: 0in 0in 0pt"><strong><span style=3D"FONT-FAMILY: Arial=
">client configurations</span> </strong><span style=3D"FONT-FAMILY: Arial">=
: (amount of data on type of storage, backup window, min speeds to make win=
dow, how many drives would be required to make window, numbers and types of=
interfaces)=20
</span></li></li></li></li></ul>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">Some of=
the basic components that I'm including right now are the basic calculatio=
ns like:</span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span></span><span></span><span style=3D"F=
ONT-FAMILY: Arial">(total amount of data) / (backup window) =3D (GB/hr min =
transfer rate to make window)</span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">.. howe=
ver this is very simple and doesn't take into account MPX or Multi-streamin=
g nor # of clients per policy. </span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial"> <=
/span></p>
<p style=3D"MARGIN: 0in 0in 0pt"><span style=3D"FONT-FAMILY: Arial">This is=
where I'm hitting some resistance, putting together a formula that can exp=
ress this information properly.</span></p>
<div><span style=3D"FONT-FAMILY: Arial">I'm trying to get this tool to be u=
seful for either an already existing environment or a totally new one.<br c=
lear=3D"all"><br>-- <br>Brian J. Greenberg<br><a onclick=3D"return top.js.O=
penExtLink(window,event,this)" href=3D"mailto:bjgreenberg AT gmail DOT com"
target=
=3D"_blank">
bjgreenberg AT gmail DOT com</a> </span></div>
<div><span style=3D"FONT-FAMILY: Arial"></span> </div>
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