Hard Drive Speed Difference Between FireWire 800 and Internal Drive

Right now I have my entire 1.5 TB Lightroom photo library on an external drive connected to my new Mac Pro via FireWire 800. Will I experience dramatic or even noticeable speed improvements if I move this drive to one of the internal SATA hard drive bays in my Mac Pro?
I would likely buy a new drive and SuperDuper the external to this new drive I put in the Mac Pro.
Thanks,
Matt

SATA II 3Gb is only the controller bus and has almost nothing to do with actual individual drive speed. Confusing the bus interface with hard drive speeds is not a clear way to compare.
Just pull the drive out of the FW case is all you probably need to do. Actual FW800 is less than 80MB/sec and more like 72-75MB/sec - which is as slow as your hdd gets from slow inner tracks.
Other than green, most 1.5TB drives average minimum 75MB/sec to max 115 with average in mid-90s. And the first 1/2 of a drive is where best performance comes from.
The size of the data and media library, amont of free space, all play a role.
I think FW should be left to backups, an alternate boot volume, off line data.
If it was Aperture library, but otherwise SSD is not realistic or viable. Nobody uses RAM disks as they are inefficient.
I still find 10K VelociRaptor ($279 / 600GB) fast, smoother, more responsive, great for system and data drives, even if they are only 135MB/sec, or about what some of your 2TB drives can offer.
QUICK TAKES - A striped pair of Velociraptor 600G 10K HDDs matches the speed of one SSD. For less that the price of one 256G SSD, you can buy two 10K 600G Velociraptor HDDs. If you stripe them (RAID 0), you get the same sustained transfer speed as the SSD. http://www.barefeats.com/quick.html
If you are not already using all the internal drive bays, just nice to have them handy before going external. Also take a look at two other articles on Barefeats:
THINK INSIDE THE BOX: Internal Storage Innovations for the Mac ProOctober 6th, 2010
EXTERNAL STORAGE INNOVATIONS for Mac Pros -- (Added results for ATTO R680 SAS RAID adapter.)

Similar Messages

Is there a difference between firewire 800 and firewire 400 besides the connectors

is there a difference between firewire 800 and firewire 400 cables besides the connectors?

Speed. 800 is up to twice the speed, and sometimes faster. You can connect the two connectors with a cable that fits both ends, but you will be left with the slowest speed.

Difference between line type and internal table?

Hi..
I wanted to know, what is the difference between Line type and Internal Table?

Hi,
Before the 4.7 release in SAP if we want to define an internal table we have to write the defination using the occurs statement and we need to define all the fields using INCLUDE STRUCTURE or indidually all the fields ine by one.
From 4.7 release of R/3 SAP introduced the Line type concept and it's part of the ABAP OOPS concept. for internal table defination we don't need to use the occur statements. Instead INCLUDE structure we need to create a Line type for that structure in Se11 and then we can define the internal table like :
DATA : ITAB TYPE TABLE OF <LINE_TYPE>.
Only thing is this table will be a table without header. So for internal table processing we need to define a work area structure of type line of line type . EX:
DATA: WA_ITAB TYPE LINE OF <LINE_TYPE>.
Hope this helps.
Thanks,
Greetson

Difference between work area and internal tables.

Hi I wanna know the difference between work area and internal tables.
what happend if i give with out header line in internal table.
also how to assosiate work area to internal table in that scenario.

Hi Balaji..
The internal table is an ABAP runtime object which has two parts the Body and the header.
Whereas a work area cannot have a body.. It is mere a field or group of fields which can hold values at runtime..
In the SAP higher versions mySAP ERP, the use of tables with header line is made obsolete.. But there is absolutely no problem with the same..
Just think that when you define an internal table with occurs or with header line statement, the system automatically creates a workarea with this table, using which you can access the contents in the bosy of tyhe table.. You can read a record from the table body to this header or add a record in the header to the internal table body..
When you work with a table ITAB without a header line, you can not use statements like READ TABLE, APPEND, INSERT etc without giving an explicit work area..
Suppose i have an internal table like:
DATA : itab TYPE STANDARD TABLE OF t001.
This table will not have a header with it.
If you will use APPEND itab. The compilor will give error.
Here i will create a work area with same structure of the table.
DATA : e_wa TYPE t001.
Now i will write:
APPEND e_wa TO itab.
READ TABLE itab INTO e_wa WITH KEY xxxxxx
LOOP AT itab INTO e_wa... etc..
In a better approach we use Field symbols with such tables, instead of structures
FIELD-SYMBOLS: <fs_itab> TYPE t001.
So,
LOOP AT itab ASSIGNING <fs_itab>
READ TABLE itab ASSIGNING <fs_itab> etc.. However we can not use field symbols in few cases..
I hope this will help you..
Thanks and Best Regards,
Vikas Bittera.
**Points for usefull answers**

Any data on speed differences between 2.4 and 2.93 ghz MBP?

Has anyone seen any performance tests showing the difference between 2.4 and 2.93 ghz MBP? I've googled around and haven't found anything.

Check Bare Feats for benchmarks and do some Google searching. Logically, the difference is not likely more than the difference in processor speed, plus or minus.

External Drive Speed - Thunderbolt vs Firewire 800?

Hi Friends,
I'm looking to upgrade my external firewire 800 enclosure/drives to speed up editing/rendering in FCP 7/X. Currently this is the config I'm using with my MBP:
- Vantech Nexstar dual 3.5" sata external hard drive enclosure ( http://www.vantecusa.com/en/product/view_detail/277 )
- 2 x 1.5TB Seagate Barracudda 3.5" Sata 7200rpm hard drives (http://www.amazon.com/Seagate-Barracuda-7200RPM-Internal-ST31500341AS-Bare/dp/B0 0066IJPQ)
I'm interested in upgrading to an external thunderbolt enclosure like this:
- Pegasus J4 2.5" quad sata3 external thunderbolt hard drive enclosure ( http://www2.promise.com/storage/raid_series.aspx?region=en-global&m=192&rsn1=40& rsn3=62 )
- 4 x Seagate Momentus XT 2.5" sata3 7200rpm hard drives ( http://www.seagate.com/internal-hard-drives/laptop-hard-drives/momentus-laptop/ )
I know I could get better drives, i.e. hybrid hdd/ssd, or just ssd, but that's not in the budget right now.
Can anyone tell me if the thunderbolt enclosure with 4 x 2.5" sata3 drives will read/write much faster than the firewire 800 enclosure with 2 x 3.5" drives?
Thanks in advance !
- Cindy

Hi Meg,
I may have given the wrong Vantech link, since the Vantech Nextstar I'm currently using has FW and USB, thanks!
Meantime I'm waiting to hear back AGAIN from the Pegasus manufacturer - ends up I've found a number of reviews stating the Pegasus J4 is plenty fast for FCP use!
- Cindy

Difference between client 800 and other client

Dear Gurus,
I have one more query one of my friend asked me is it possible to configure the client business process in client 800 in real time what makes the difference the client 800 from other client, i said 800 client is open client others are configured based on client bpp, but so we can configure the same process in 800 also so iam not confident in answering at that time, so looking for your input.
Regards,
Arun.

Hi,
Client 800 normally refer to IDES server. There is no hard rule that the client server numbering should be like this only.
In general Client will be named as
IDES is for training only.
Development Client - Sand Box (for testing) which is can eb used for configuration has well as data testing.
Golden Client - Which will have only configuration setting and No Data.
Quality Server - Pre-produciton server, which will carry the copy of Production Server.( configuraiton + data)
Production Server - This is live server in which we do all day to day transctions.
Note : All transportation request created in developement (ABAP - Work Bench) or Configuation done in Golden client will be move first to quality server, tested and then only it will be moved to production client.
Hope it is clear.
Regards,
R.Janakiraman

Difference between WBS element and internal order?

What is the main difference between WBS element number and internal order number?
Points will be given!

Hi,
WBS:
The work breakdown structure (WBS) is a model of the project that organizes project tasks into a hierarchy.
It is the functional basis for further planning steps in a project, for example, for process planning, cost planning, scheduling, capacity planning or costing, as well as project control.
It gives you a clear picture of the project and facilitates the coordination and implementation of the project from a management standpoint.
It shows the work involved in a project.
check this link also
http://help.sap.com/saphelp_erp60_sp/helpdata/en/a9/8a853488601e33e10000009b38f83b/frameset.htm
Internal order:
Internal orders are normally used to plan, collect, and settle the costs of internal jobs and tasks. The SAP system enables you to monitor your internal orders throughout their entire life-cycle; from initial creation, through the planning and posting of all the actual costs, to the final settlement and archiving:
check this link also
http://help.sap.com/saphelp_erp60_sp/helpdata/en/a9/ab7f68414111d182b10000e829fbfe/frameset.htm
if this helps,please assign points.
Thanks,
Rau

I currently have a MAC Mini, which has 1 Firewire 800 port. I have a 1TB external hard disk that runs at Firewire 400. Can I insert another external hard drive that runs at Firewire 800?

Here's the deal. Currently running SL 10.6.8 on a MAC Mini. Planning for eventual upgrade to ML. Have a 1TB external hard drive partitioned into two volumes, one volume for Time Machine and one volume for SL which I periodically update using Superduper. Thus I always have a point-in-time bootable backup on the external hard drive.
The MAC Mini supports Firewire 800. However, booting from my current external hard disk is pretty slow, since it only supports Firewire 400. I am considering buying an Iomega MiniMax which supports Firewire 800. Then, I would use the MiniMax as my bootable backup volume, and relegate the older hard drive to Time Machine.
So, question #1 is, can I daisychain the new MiniMax between the MAC Mini and my existing external hard drive? My expectation is that the new Mini Max would run using Firewire 800 and that the existing hard drive would run at Firewire 400 speed as it does today. If it doesn't (e.g., daisychaining in the Firewire 400 external disk with the MiniMax Firewire 800 external disk ends up running the whole leg at 400), my resolution will be to run the existing hard disk off an available USB port and have just the MiniMax running at Firewire 800.
Why am I going to all this trouble? That's question #2. I don't trust upgrades; they always break something. When I upgraded from 10.5.x to 10.6.x, the web directories got renamed, and all of my web apps 403'd until I figured out what happened. Plus, I have accounts for other family members, and in order to ensure their ability to use the computer during my upgrade process, I need to have the ability to fall-back quickly to a known-stable version of OSX. So what I'm trying to do is insulate myself from problems by partitioning the MiniMax into two volumes, taking a Superduper image of my current installation on the Mac Mini to MiniMax external drive volume 1, then upgrading to ML on the MAC Mini, and take a SuperDuper image of that to MiniMax external drive volume 2. Then, if the upgrade results in problems I can't resolve immediately, I can simply reimage the MAC Mini from MiniMax volume 1. BUT ...
... I've read that the ML installation creates a "service and support" partition that is different than the startup disk. I'm concerned that I won't be able to reimage the hard disk in the MAC Mini once I upgrade it to ML because of the partitioning changes it introduces on the startup disk. Theoretically, I +should+ be able to use the disk utility on my SL system to repartition the disk in the MAC Mini prior to reimaging it from my backup, but I'm considering the possibility that the new partition may be of a type that the SL disk utility cannot identify, and might therefore be unable to delete or even detect. So I'm hoping someone else has been down this road and can advise me. Even at Firewire 800 speeds, booting from an external disk is still going to be slow, so I want to be able to restore my SL image to the MAC Mini hard disk.
A little background on me. I work for a major disaster recovery provider. I used to have a Mac PRO G5, which I got used, and the first thing I did with it was install a second hard disk, SuperDupe an image from the first disk to the second, and made sure I could boot from the second. THEN I started using and customizing the MAC. I really feel vulnerable with the MAC Mini, since it only has the single internal hard drive - sort of like going out in public dressed only in a long T-shirt. So my whole thing is, I ABSOLUTELY MUST BE ABLE TO PUT THINGS BACK THE WAY THEY WERE before I do the migration to ML.
Obsessive-cumpulsive? Yep. Anal? You got it. That's why I'm in the DR business.

You may have overloaded the port, following the instructions below it should reset:
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
http://support.apple.com/kb/HT1317?viewlocale=en_US

Does FireWire 800 see individual drives in a four bay hard drive enclosure?

I am trying to find a four bay hard drive enclosure with FireWire 800 interface, AND through this one FW800 connection my OS can see the four hard drives individually (similar to USB interface or Port Multiplier on eSATA interface). Anyone knows whether such a product exists? Thanks.

I'm not sure you fully understand how the hardware/software RAID system functions. If you create a mirrored RAID with either then you have redundancy for drive failure. This would be the case for either hardware or software arrays. If you create a striped array with hardware or software then there is no redundancy regardless of which method you use.
An enclosure failure can occur whether you use software or hardware based arrays, so the failure risks are the same. There's no reason to believe that the failure risk of the enclosure would be greater than using software. In fact it's likely that the hardware would be more reliable. As for differences between eSATA and Firewire reliability I'm not sure why your would believe one is more reliable than the other unless you have data that supports such a conclusion.
If you are overly cautious about backups (which is a good thing) then I would look for an enclosure in which you could have two separate striped arrays. Then the two striped arrays are configured into a single mirrored array. That way you have two separate backups - a main one and the mirror. This gives both drive and data redundancy. The main risk is if one drive in each array fails simultaneously. The risk of this would be fairly low I would think. Even this risk can be removed if the box supports other types of arrays than just 0, 1, and 0-1. See the following:
RAID Basics
For basic definitions and discussion of what a RAID is and the different types of RAIDs see RAIDs. Additional discussions plus advantages and disadvantages of RAIDs and different RAID arrays see:
RAID Tutorial;
RAID Array and Server: Hardware and Service Comparison>.
Hardware or Software RAID?
RAID Hardware Vs RAID Software - What is your best option?
RAID is a method of combining multiple disk drives into a single entity in order to improve the overall performance and reliability of your system. The different options for combining the disks are referred to as RAID levels. There are several different levels of RAID available depending on the needs of your system. One of the options available to you is whether you should use a Hardware RAID solution or a Software RAID solution.
RAID Hardware is always a disk controller to which you can cable up the disk drives. RAID Software is a set of kernel modules coupled together with management utilities that implement RAID in Software and require no additional hardware.
Pros and cons
Software RAID is more flexible than Hardware RAID. Software RAID is also considerably less expensive. On the other hand, a Software RAID system requires more CPU cycles and power to run well than a comparable Hardware RAID System. Also, because Software RAID operates on a partition by partition basis where a number of individual disk partitions are grouped together as opposed to Hardware RAID systems which generally group together entire disk drives, Software RAID tends be slightly more complicated to run. This is because it has more available configurations and options. An added benefit to the slightly more expensive Hardware RAID solution is that many Hardware RAID systems incorporate features that are specialized for optimizing the performance of your system.
For more detailed information on the differences between Software RAID and Hardware RAID you may want to read: Hardware RAID vs. Software RAID: Which Implementation is Best for my Application?

Any speed difference between Apple Wifi Router(air express) and Tp link(or others) wifi router)

Any speed difference between Apple Wifi Router(air express) and Tp link(or others) wifi router?
I'm using a tp link router and sometimes it takes a long time delay for my 2 mac computers to connect each other. I don't know this is because of the router compability or the computers.

Anyone knows?

What are the major differences between the air and the pro

what are the major differences between the air and the pro?

In a nutshell, the Air is a lightened, more compact system than the 13" Pro counterpart. The Air loses some hardware features to accommodate the physical downsizing.
No FireWire port
No built-in optical drive
A lesser performing CPU to retain battery charge life, and adequate cooling.
No Ethernet port
No Kensington lock slot
The Air does have a superior native resolution at 1440 x 900, and a standard SSD that does make up alot of the speed differential, and then some. Of course, the 13" Pro can be optionally configured with an SSD.
You buy the Air if the physical size an weight savings are demonstrably more important than the features lost.

What's the difference between the ssd and hd?

I'm in the process of buying a Mac book pro but wanted to know and understand What's the difference between the ssd and hd?

DDHeadley wrote:
What's the difference between the ssd and hd?
HD = hard drive, several metal platters stacked and data read/written magnetically.
Pro's - less expensive and higher capacity of storage. Can scrub the drive of unwanted data. Unlimited write capability.
Con'- bit rot can cause data and operating system to not be as reliable, mechanical moving parts means you can't move the machine while it's on.
SSD = Solid State Disk, basically memory chips that can store data in a permanent fashion without power (like Random Access Memory needs)
Pro's - faster read/write speeds in most cases. Shock resistant makes them ideal for portable uses.
Con's - new technology issues, one cannot securely erase the data on them, unless it's ground into a fine powder. Limited write capability means they will wear out eventually like USB thumb drives do. Wear leveling (TRIM) is used to spread the writes evenly across the drive to maximize it's lifespan.
If you can respect the machine, take care of it and not move it while it's on, or need to scrub the drive of unwanted data, or need higher capacity of storage without paying a fortune for a very large SSD, then a HD makes a lot of sense.
It really comes down to your privacy, do you want a machine you cannot delete files off of?
Do you want to carry around a machine that has all your dirty secrets etched in it for anyone with the right software to uncover?
A computer is a personal machine, why it's called a Personal Computer. We all do things we sometimes are later ashamed of and want to erase all memory of it.
Can't do that with a SSD, it knows all and you will be forced to destroy the machine to rid it of the unwanted data.

Difference between ULTRA ATA and SERIAL ATA

Hello,
What is the difference between ULTRA ATA and SERIAL ATA ?? Is the connector different for each type ?? Thanks in advance.
Robert Lespérance

Was wondering why you are considering a ATA drive? The iMac G5 als has a serial ata drive already.
If you are considering an external drive, then you have a problem. The most important thing there is that you get a drive with firewire interface because I think they are the fastest, but USB is an ok choice. If there is an external firewire drive that also uses a serial ATA drive inside of it, then that would be an excellent choice for speed. USB or Firewire are standards for connecting a peripherial to you Mac. An external drive will probably have a very common, read Mactor, WD, Seagate, ATA drive in it. The external drive case has a interface inside of it which allows USB or Firewire to speak with the ATA drive, any flavor. Some people just purchase a powered external 3 1/2 case and install the hd they like the best, that is the nice thing about standards.
I think serial ATA will pretty much spell the end of all of the older ATA drives. The serial drives are actually very competitive in price now and faster.
Suggest you go to Western Digital, Maxtor, and/or Seagate's web sites to learn what drives they offer.
iMac G5 17" ALS with 1 Gigglebyte ram Mac OS X (10.4.4) Also a homebuilt Sempron, a Compaq, and a Dell laptop...oh my!
iMac G5 17" ALS with 1 Gigglebyte ram Mac OS X (10.4.4) Also a homebuilt Sempron, a Compaq, and a Dell laptop...oh my!

Difference between abap object and function

hi all,
i read the book on abap object of the difference between abap object and classical abap.
i know that there is only 1 instance of a specific function group but somehow i still not so clear why subsequent vehicle cannot use the same function. i also can use the do and loop to call the function? if cannot then why?
hope can get the advice.
thanks
using function *********
function-pool vehicle.
data speed type i value 0.
function accelerate.
speed = speed + 1.
endfunction.
function show_speed.
write speed.
endfunction.
report xx.
start-of-selection.
*vehicle 1
call function 'accelerate'.
call function 'accelerate'.
call function 'show_speed'.
*vehicle 2
*vehicle 3
*****abap object*******
report xx.
data: ov type ref to vehicle,
         ov_tab type table of ref to vehicle.
start-of-selection.
do 5 times.
create object ov.
append ov to ov_tab.
enddo.
loop at ov_tab into ov.
do sy-tabix times.
call method ov->accelerate.
enddo.
call method ov->show_speed.
endloop.

Hi
Now try this:
REPORT ZTEST_VEHICLEOO .
PARAMETERS: P_CAR   TYPE I,
            P_READ TYPE I.
*       CLASS vehicle DEFINITION
CLASS VEHICLE DEFINITION.
PUBLIC SECTION.
    CLASS-DATA: MAX_SPEED   TYPE I,
                MAX_VEHICLE TYPE I,
                NR_VEHICLES TYPE I.
    CLASS-METHODS CLASS_CONSTRUCTOR.
    METHODS CONSTRUCTOR.
    METHODS ACCELERATE.
    METHODS SHOW_SPEED.
    METHODS GET_SPEED EXPORTING E_SPEED TYPE I.
PRIVATE SECTION.
    DATA: SPEED      TYPE I,
          NR_VEHICLE TYPE I..
ENDCLASS.
*       CLASS vehicle IMPLEMENTATION
CLASS VEHICLE IMPLEMENTATION.
METHOD CLASS_CONSTRUCTOR.
    NR_VEHICLES = 0.
ENDMETHOD.
METHOD CONSTRUCTOR.
    NR_VEHICLES = NR_VEHICLES + 1.
    NR_VEHICLE = NR_VEHICLES.
ENDMETHOD.
METHOD ACCELERATE.
    SPEED = SPEED + 1.
    IF MAX_SPEED < SPEED.
      MAX_SPEED   = SPEED.
      MAX_VEHICLE = NR_VEHICLE.
    ENDIF.
ENDMETHOD.
METHOD SHOW_SPEED.
    WRITE: / 'Speed of vehicle nr.', NR_VEHICLE, ':', SPEED.
ENDMETHOD.
METHOD GET_SPEED.
    E_SPEED = SPEED.
ENDMETHOD.
ENDCLASS.
DATA: OV     TYPE REF TO VEHICLE,
      OV_TAB TYPE TABLE OF REF TO VEHICLE.
DATA: V_TIMES TYPE I,
      FL_ACTION.
DATA: V_SPEED TYPE I.
START-OF-SELECTION.
DO P_CAR TIMES.
    CREATE OBJECT OV.
    APPEND OV TO OV_TAB.
ENDDO.
LOOP AT OV_TAB INTO OV.
    IF FL_ACTION = SPACE.
      FL_ACTION = 'X'.
      V_TIMES = SY-TABIX * 2.
    ELSE.
      FL_ACTION = SPACE.
      V_TIMES = SY-TABIX - 2.
    ENDIF.
    DO V_TIMES TIMES.
      CALL METHOD OV->ACCELERATE.
    ENDDO.
    CALL METHOD OV->SHOW_SPEED.
ENDLOOP.
SKIP.
WRITE: / 'Higher speed', VEHICLE=>MAX_SPEED, 'for vehicle nr.',
            VEHICLE=>MAX_VEHICLE.
SKIP.
READ TABLE OV_TAB INTO OV INDEX P_READ.
IF SY-SUBRC <> 0.
    WRITE: 'No vehicle', P_READ.
ELSE.
    CALL METHOD OV->GET_SPEED IMPORTING E_SPEED = V_SPEED.
    WRITE: 'Speed of vehicle', P_READ, V_SPEED.
ENDIF.
Try to repeat this using a function group and I think you'll undestand because it'll be very hard to do it.
By only one function group how can u read the data of a certain vehicle?
Yes you can create in the function group an internal table where u store the data of every car: in this way u use the internal table like it was an instance, but you should consider here the example is very simple. Here we have only the speed as characteristic, but really we can have many complex characteristics.
Max

Hard Drive Speed Difference Between FireWire 800 and Internal Drive

Similar Messages

Maybe you are looking for