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. _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/dscharf%40pacbell.ne...
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