Digital
photographers continually need more hard drive space. Not
only do you need enough space for new photographs you have
made, but you need room for all of the associated files,
like master files and targeted print files, and for large
scans from photographs you made with film. On top of that,
if you are using a Mirrored RAID, you need twice the number
of hard drives as everyone else.
But
that’s
just the start. Anyone who has ever filled up a garage
with things other than their car knows the space has to
be useable and organized. You need enough space to keep
your files organized, orderly, and clutter free so accessing
them is easy.
The
common solution: FireWire drives
Many photographers I know address their storage needs with
a series of external drives that attach to their computer
with the FireWire interface. It seems simple enough--When
you need more storage, just buy another drive and plug it
in. But as you add more and more drives, the weakness of
this system starts to gang up on you.
The
downfalls of using FireWire drives
First
of all, every drive needs to be connected with a cable. The
more cables involved, the greater the chance of a loose connection.
At best, a loose connection will prevent your drive from mounting,
causing you frustration and lost time as you try to figure
out the problem. At worst, it might lead to data corruption
problems. With only one or two drives, you might not run into
the problem. As you add more drives, you'll find that you have
oddly shaped cases cluttered around your desk, all connected
to one another--and you'll inadvertently bump the cases as
you reach around for the oh-so-inconveniently placed power
switch on the back--causing you to encounter (and cause) more
and more loose cable events.
Defining our needs
Let’s
talk about the physical space requirements for external hard
drives. We don’t
want our drive cases sprawled all around our desk. We want
them in a nice tidy stack that is out-of-the-way so they don't
get bumped while we work, but are still accessible enough to
use. That’s where our challenge starts. In
my experience, different enclosures don’t stack well.
Sure, some manufacturers make stacking enclosures, but unless
you buy all of your drives at the same time, and in the same
enclosures, from the same manufacturer, you are out of luck.
That’s because manufacturers frequently change their
enclosure designs. And even if they don’t, the next
drive you want may not be available in the same enclosure
design, or at a good price. In my experience, you will pay
a premium for stackable enclosure designs from manufacturers
such as LaCie. So, just adding another FireWire drive whenever
you need more storage becomes very complicated and difficult
to maintain over time.
Then there is the issue of the drive connection interface
- how you connect the drive to your computer. There are many
options available. USB is a very common interface, but it
can be slow compared to FireWire (also known as IEEE 1394).
FireWire has been an acceptable standard for many years,
but my experience with it has been hit-and-miss.
The
biggest problem with FireWire is the bridge boards that
are used inside the hard drive enclosures. These are the
devices that let the hard drive talk to the computer over
the FireWire interface. In my experience, they are the
source of many problems. First of all, they can fail. This
seems particularly common in empty enclosures that allow
you to add your own drives. Second, there are many potential
compatibility problems, as some versions of operating systems
and some computers don’t like to
connect to certain versions of bridge boards. Third, there
can be compatibility issues between certain bridge boards
and certain hard drives, complicating future upgrades.
Can
these problems be overcome? Yes...but at what cost? At
some point, you have to ask yourself if you want to be
a photographer or a computer technician. I want to be a
photographer, so the less time I have to spend fiddling
with my computer, and the more time I can spend making
new pictures or new prints, the better. Not only does it
matter artistically, but if you make a living from your
photography, your job is hard enough already....you don’t need to make it
any harder. Myself, I’m ready for a better solution.
As
I’ve alluded to, storage needs are ever increasing,
so it’s important to have a storage solution that
is easy to upgrade. The need for more storage is even greater
if you are using a Mirrored RAID system, as a Mirrored RAID
doubles the number of drives you need.
So, let's recap our needs:
We want a storage system that:
1. Can hold a large quantity of hard drives
2. Is highly reliable
3. Uses a minimal number of cables
4. Is easy to upgrade and maintain
5. Has good compatibility with different brands and models
of hard drives
A New Solution: Sonnet To The Rescue
The
solution lies in a new family of SATA port multiplication
products from Sonnet
Technologies, which
meet these needs exceptionally well, and are a great solution
for digital photographers.
The
first part of the solution is the Fusion
500P Drive Enclosure.
This external enclosure holds up to five SATA drives, but
only requires a single cable to attach to the host controller,
and is compatible with Mac, Windows, and Linux computers
using SATA controller cards with port multiplier support.
SATA
is a new connection interface for hard drives that is quickly
replacing the IDE-standard for internal drives and replacing
FireWire for external devices. It is much faster than previous
technologies, and can use a very slim cable that takes
up a minimal amount of space.
This
new enclosure meets our needs very nicely. It is very easy
to use (the instructions are 1.25 pages long, and most
of that space is taken up by photos). It is very easy to
add additional hard drives, and because it uses a single
cable to connect to the computer, there is less clutter and
chance of disconnecting it. Its small footprint fits
easily on any desk, and it takes up a minimal amount of space.
It’s also very inexpensive ($437.99 from Buy.Com)
when compared to similar multiple drive enclosures.
But
the 500P is only part of the equation. It needs to connect
to a SATA controller card inside your computer. Sonnet
offers two options: the Tempo
SATA X4P, which works with most
older MAC and Windows computers that use PCI or PCI-X slots,
and the Tempo
SATA E4P, which
works with PCI Express® (PCIe) X4 slots found in
many new computers.
Both
of these cards offer four external eSATA connections that
support port multiplication. That means you can connect
up to four 500P enclosures for a total of twenty hard drives
attached to your computer. This allows for an incredible
15 terabytes of storage if you use 750 GB drives, such as
the Seagate
Barracuda 7200.10 Drive.
If you need even more storage, you can install additional
cards in your computer for 30 or even 45 terabytes of storage!
Best
of all, these are plug-and-play solutions. You don’t
have to be a computer expert to get them working. Let’s
walk through the installation process so you can see how
easy it is.
First,
buy the proper card for your computer. For this demo, I’ll
be using the Tempo SATA X4P that works with most Mac G3
and G4 computers, as well as early Mac G5s. Once you have
all the parts, it’s time to do the install.
Installing the controller card
NOTE:
You should always read the manufacturer's instructions
before installing new hardware.
1. Shut down the computer. The power must be off before
you work on it.
2. Find an open PCI slot inside the computer and remove
the slot cover.
3. Ground yourself by touching the power supply.
4. Install the card and make sure it is seated firmly.
5. Secure the card with the screw that was retaining the
slot cover.
6. Close the computer and leave it off.
Unscrewing
the retaining screw
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Removing the PCI slot cover
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Ground
yourself to prevent static discharge
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The Tempo
SATA X4P card
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Installing the card
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Replacing the retaining screw
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Setting up the 500P enclosure
1. Remove a drive tray.
2. Place a hard drive upside-down on a table, then place
the drive tray over it, making sure that the drive connectors
are facing the back of the tray.
3. Attach the drive to the tray using the supplied screws.
4. Insert the drive tray into the enclosure until it stops,
and then push the lever to secure the drive in place.
5. Repeat as necessary with the remaining four trays.
6. Attach the enclosure to the computer using the eSATA
cable provided. Plug in the enclosure and turn it on.
7. Give the drives about 30 seconds to spin up, then boot
your computer.
8.
Use your computer’s formatting tool to format the
drives (ideally using RAID 1 to create a mirrored RAID. Read
more about RAID storage in a previous Imaging Tip.)
9. Fill up your new drives with beautiful photos and add
more drives as necessary!
Removing the drive tray
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Aligning the drive so the connections
are at the back
of the tray
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Use screws to attach drive to tray
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Slide tray into enclosure
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Push
lever to secure tray in the enclosure
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Attach eSATA cable to enclosure
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Attach eSATA cable to computer
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If
you have data on FireWire drives, you can transfer that
data to a drive in the 500P enclosure, and consolidate
your information on a larger drive. From there, it’s
up to you, but whatever you need, you’ll now have
access to a huge amount of storage space, and can easily
add more as your digital archive grows.
Additional
Reading
Sonnet
Tech Website
West
Coast Imaging Imaging Tip on RAID storage
Barefeats.com REVIEW: Sonnet's PCI Express SATA Host Adapter
with Port Multiplication
AMUG article on the Sonnet Tempo SATA E4P
Wiebtech Storage Enclosure Reliability White Paper
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