Re: Colorsync-users Digest, Vol 10, Issue 64
Re: Colorsync-users Digest, Vol 10, Issue 64
- Subject: Re: Colorsync-users Digest, Vol 10, Issue 64
- From: David Scharf <email@hidden>
- Date: Mon, 29 Apr 2013 20:21:50 -0700
I am using a Mac Pro with a 960G PCI Express plug in SSD from OWC called
Mercury Accelsior. My system is screaming fast. But the strategy is to
keep all images on 2TB Enterprise class hard drives. I don't use the SSD
startup drive for storage or archiving. Its primary function is to run
the computer with the OS (10.6.8) and be used as the primary scratch
disk for Photoshop. All work is copied each day to an external HD
connected via eSATA or Firewire 800. For longer term archiving we copy
images in TIFF and PSD to long life Tayo Yuden DVD+R discs. Besides
having one internal HD for running Time Machine, we use another HD for
periodic cloning of the SSD startup using SuperDuper. The clone is very
useful for emergency or periodic startup to repair the main startup
disk. That leaves two internal 2 TB HDs for image storage in the
computer. We also copy image files to Network NAS drives, making them
available to the other computers on the network.
I just can't stand the thought of losing a days work or an original
file. Having a clone of the startup HD is just good sense for a
professional. But despite all this redundancy, I've still run into
situations where something gets lost. But really, I'm not paranoid--I'm
just a boy scout trying to be prepared. Oh just one more thing, buy the
best quality SSD, not the cheapest.
Dave Scharf
--
DAVID SCHARF PHOTOGRAPHY
*DAVID SCHARF PHOTOGRAPHY*
Scanning Electron Microscopy
http://www.electronmicro.com
On 4/29/13 3:50 PM, Graeme Gill wrote:
Morgan Gordon wrote:
images I choose to retain that arent being worked on are removed from the SSD and spend their
days on the Pegasus. Then I have a seagate backup plus thunderbolt adapter and three 4 TB drives
that use with time machine to backup everything on the SSDs on the laptop and iMac and the
photos I keep on the Pegasus.
Hmm. SSD has a bit of a reputation for being extremely fast, and quitting without any warning.
And it's getting worse as the manufacturers try and cram more data in smaller and smaller cells.
Some of the earlier Flash devices took 10000 write cycles or so to wear out, but this is dropping -
there's talk of making SSD's out of flash that wears out in as little as a few hundred writes !
Yes, they're pulling redundancy tricks (over provisioning and wear levelling) to cover this up,
but I have a nasty suspicion that there will be an assumption that "you'll buy a new machine/SSD
every two years anyway", so that it "doesn't matter" if new SSD's fall over very quickly.
In contrast, hard drives typically give some warning when they are on the way out.
Graeme Gill.
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