Thanks, Moose. All of that does make sense. I've already ordered the
external case for the SSD drive and will try hooking it up to the eSata
port on my computer. I planned to just put the LR catalog on there.
There's no way it would hold my files which are in 18 3TB hard drives. I
guess this will be an experiment to see if it makes any difference. LR and
PS are not really slow unless I have several other things going on at the
same time. It will be a long time before I can get another computer. My
husband is overdue for a new one and I'll have to wait in line!
Tina
On Thu, May 23, 2013 at 3:57 PM, Moose <olymoose@xxxxxxxxx> wrote:
>
> On 5/23/2013 11:49 AM, Tina Manley wrote:
> > Computer Gurus -
> >
> > I read that to really speed up LR, I needed a Solid State Drive so I
> > ordered this one:
> >
> >
> http://www.amazon.com/gp/product/B009LI7CTY/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1
> >
> > I thought it would be an external drive that I could hook up to USB but
> > it's not!
>
> You have fallen into part of the same trap Brian just encountered.
>
> You have confabulated different things.
>
> 1. SATA and USB are fundamentally different, with different connectors
> and different ways of communicating through
> those connectors.
>
> a. SATA was developed as a way to connect internal drives to the
> motherboard. It may also be implemented through
> an adapter card that connects to the motherboard data bus.
> However, that may or may not be as fast as direct
> connections designed into the motherboard.
>
> So far, SATA has come in three speed categories, SATA (I), SATA II
> and SATA III. The speed must be implemented
> on both ends of the cable. Your computer most likely has the
> original SATA. You may attach a SATA III like the
> one bought, and it will work, but at the lower transfer speed.
>
> b. eSATA (external SATA) was developed as a way to connect drives
> outside the computer box at internal
> connection speeds. In its simplest form, as I use it, it is as
> connector(s) that goes in the back opening(s) of
> the computer and plugs into a SATA outlet on the motherboard.
> There is then a physically different cable that
> connects to it and to an external drive holder with appropriate
> connector.
>
> Electrically, the computer simply sees another internal drive.
> With a SATA drive, connection speed is the same.
> I don't know enough about specs, but have seen cables advertised
> as for SATA III. It is not only possible, but
> likely, that some eSATA connectors and/or cables and most or all
> current external eSATA drive holders will not
> support full SATA III speeds.
>
> c. Some 3.5" external drives with separate power supplies come
> with eSATA connections. I have a WD My Book 1TB
> drive that connects that way, as well as a Thermaltake 'toaster'
> as just described by Chuck and another external
> drive enclosure with eSATA. The toaster accommodates both 2.5" and
> 3.5" drives.
>
> d. USB was developed as a way to connect almost any sort of
> external device to computers. Although there were
> prior, slower versions, you almost certainly have USB 2.0 HS
> connections. They are perfectly good for many, many
> devices, and not bad for modest HD volume connections, but wholly
> useless for what you are trying to do.
>
> USB 2.0 HS is fine for copying files from SD cards to a portable
> HD, terrible for editing files on main computer.
>
> Chuck has already covered USB 3.0. it's just not ready for prime
> time for folks like me and you.
>
> Most 2.5" external drives and enclosures, such as your drive would
> fit into, depend on power from the USB port,
> rather than an external supply. This makes them ideal for many
> portable uses, but also means they don't so SATA.
>
> 2. SSDs (Solid State Drives) may speed up file access in two different
> ways.
>
> a. Because they don't use a spinning disk and moving arms to
> access data, all accesses are of equal speed, and
> faster than a physical disk.
>
> b. They are generally SATA III, and thus can deliver data at a
> higher rate than older specs, if the computer can
> match that.
>
> Sooooo ... If your computer has motherboard SATA connections, you may
> mount your new drive in your computer with nothing
> more than four screws and power and data cables. If you don't have a free
> 2.5" drive bay, you will also need an
> inexpensive mounting kit.
>
> You may then get the benefit of the faster ACCESS speeds of an SSD, but
> not the TRANSFER speeds of SATA III.
>
> Setting the new drive as the cache drive for LR will give the faster
> access speed. However, to gain speed in file open
> and save operations, you must copy the files you will be working on
> (including any prior LR data) onto the SSD, then
> whatever files LR uses to store it's operations data in back to where the
> original files are stored.
>
> I assume that, like PS, LR uses a cache separate from the general OS
> cache. If not, and unless the OS cache may be
> relocated to the SSD, the only speed up may be in file access.
>
> In the end, you may not experience much difference. I have a SATA III SSD
> on my system, but only SATA speed motherboard.
> It really doesn't make much difference in PS.
>
> > There are evidently ways to install it in a drive bay, which I
> > do have. What do I need to do that? Is there any way to use it as an
> > external hard drive or would that defeat the purpose?
>
> As above, the purpose is largely or wholly defeated either with internal
> or external connections. Real speed comes with
> a new computer with native SATA III on the motherboard, SSD SATA III
> primary disk and perhaps a small, separate SSD for
> cache (at least for PS).
>
> > TIA for any advice. I need it!
>
> Return it and save the money toward a new computer with SATA III and an
> SSD primary(boot) drive. (All the above is from
> a Windoze user. I have no idea about iMacs, SATA III and SSD boot drives.)
>
> Hard Headed Storage Moose
>
> --
> What if the Hokey Pokey *IS* what it's all about?
> --
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>
>
>
--
Tina Manley, ASMP
www.tinamanley.com
--
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