mrvoeg
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Q: Thunderbolt with Pegasus R4 heavily slows down boot performance of internal SSD

After connecting a Promise Pegasus R4 Raid with a Thunderbolt cable, my Mac Book Pro 2011 (Snow Leopard) needs about 60(!) seconds longer to boot from the internal SSD. Without the Raid connected, my MacBook Pro needs about 20 seconds to boot. When I press the power button, the display of the MBP is more than 20 seconds black before the bootsequece starts. I shorly can hear the CD drive beeing checked after pressing the power button - as usual. The RAID is the only periphal connected via Thunderbolt. No softwareupdates are available. Raid and SSD are pretty fast after the system booted. Is this behavior normal?

MacBook Pro, Mac OS X (10.6.8)

Posted on Oct 11, 2011 9:12 AM

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mrvoeg

Q: Thunderbolt with Pegasus R4 heavily slows down boot performance of internal SSD

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  • by Steve McRea,

    Steve McRea Steve McRea Nov 6, 2011 12:49 AM in response to Smphoto74
    Level 1 (99 points)
    Mac OS X
    Nov 6, 2011 12:49 AM in response to Smphoto74

    I really do appreaqciate your help on this

     

    Anyway.. I just spent the evening buttling down and reading everthing I can about RAID configurations....

     

    So I now understand what you're saying... and I missed it before. in RAID 1 is my backup... or in RAID terms "Mirrored" and in the RAID 0 is where my data is spread across the disks to improve the access times

     

    Am I begining to get this through my thicj skull?

     

    So 1-0 wil give you the best of both worlds. But as they say in the info the drawback is that you need more drives as storage effoiciancy is only 50%...

     

    But putting my laymans hat on again then this fact doesn't bother me as I accept that in a backup drive anyway!

     

    So my next question is on how do I setup the RAID 1-0. I heard in my reading tonight that disk utilities is not very good and 3rd party SW like

     

    http://softraid.com/

     

    Is the way to go.. do you agree?

     

    If not then a step by step proceadure for setting up a RAID 1-0 in disk utils would be really useful!

     

    One other question: When I finbally get the RAID setup then when I come to install OSx Lion on it then will it just appear as a drive in the lion setup at the beginning. And I just select that driv and continue with the install?

     

    Thanks Again,

     

    Steve

     

     

     

     

     


  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 6, 2011 1:10 AM in response to Steve McRea
    Level 1 (5 points)
    Nov 6, 2011 1:10 AM in response to Steve McRea

    Yes, you got that right.  We don't mind using 50% of the available space because we except the other 50% as backup this still getting used and not wasted.  It all depends on how you look at it.

     

    You will be using the software that is installed on the Pegasus R4 unit.  Open box, read instructions and it's very simple.  I copied software to a backup drive as well so I have it saved.   You will open the Pegasus Utility and what you will do is just reformat the R4 for raid 1E(not raid 10 as i mentioned earlier...i will post my results monday but either way it will br Raid 1E or Raid 10)  Follow the setup using the numbers I listed and 10 hours later after the R4 formats itself you are good to go.  Yes, it really does take 10 hours. Lol

     

    When you install lion,  I will have to hunt down the links but you basically set lion to install on the R4 unit.  I'm just not sure of the settings you use and the order.  Try you tube "install Lion on external drive". I'm going to be transferring Lion to the R4.  I haven't done it yet but when I do I will post what I did.  The install is really simple.  Apple has nailed the setup which is a reason I love Macs.  

     

    I will also give you a step by step for formatting the R4....it will just have to wait till Monday when I do it.  I'm on my iPhone and my schedule doesn't leave me much time for my iMac till Monday.  lol.

  • by Steve McRea,

    Steve McRea Steve McRea Nov 6, 2011 12:09 PM in response to Smphoto74
    Level 1 (99 points)
    Mac OS X
    Nov 6, 2011 12:09 PM in response to Smphoto74

    I'm ordering everything this afternoon... so in a week or so I should have everything I need!!

     

    Sorry if I'm jumping around in topics but I have a seperate question regarding my new system. You've been so helpful that I thought that you may have some advise for me.

     

    When I've set everything up on my new system, the RAID and everything, then it will be time to restore everything.

     

    Way back at the beginning of the thread I mentioned that my old G5 Power Mac was dead. Well the truth is that I can make it boot by re-seating the memory cards and it will stay alive for a couple of hours if I'm lucky ( I suspect a dry joint on the mother board, but thats a mute point now)

     

    Anyway I am wondering what is the best method of restring my data. I have all my data on an Internal SATA 400GB startup disk and then I have a time machine backup on a twin internal 400GB SATA.

     

    I can probably keep the G5 alive long enough to restore my data but it may crash a few times.. hopefully a restore will do a checksum and it won't mean starting from the beginning.

     

    I think that these are my options....

     

    - When I install Osx Lion on the RAID, the installer is going to ask me if I wish to restore an account/s. If I remember correctly I can connect a eithernet cable from the G5 to the imac. Is that correct? is it a standard eithernet cable or are the Tx an Rx reversed.. my 6 years since I did this has faded my memory.

     

    - If I restore from time machine then is it going to recognise the old 400GB drive on the G5 as a time machine backup?

     

    - If I remember correct I can restore from the main drive directly? I wonder which is the best option?

     

    The big question is will the restore pickup where it left off if and when my G5 crashed after a couple of hours!!

     

    Thanks again. BTW my email is smcrea@yahoo.com.. it would be good to chat with you offline

     

    Steve

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 6, 2011 12:45 PM in response to Steve McRea
    Level 1 (5 points)
    Nov 6, 2011 12:45 PM in response to Steve McRea

    Steve,  I'll send you an email.

     

    Next week will be like christmas for you.

  • by Steve McRea,

    Steve McRea Steve McRea Nov 6, 2011 12:51 PM in response to Smphoto74
    Level 1 (99 points)
    Mac OS X
    Nov 6, 2011 12:51 PM in response to Smphoto74

    You got it!!... this IS my Christmas present.. just a bit early this year!

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 6, 2011 1:09 PM in response to Steve McRea
    Level 1 (5 points)
    Nov 6, 2011 1:09 PM in response to Steve McRea

    I'm gonna order tha LaCie drive...that's my Christmas present.   The Dodge Challenger idea got shot down...for this year anyways. lol  I will have 1 though... lol 

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 6, 2011 1:43 PM in response to Steve McRea
    Level 1 (5 points)
    Nov 6, 2011 1:43 PM in response to Steve McRea

    Steve,

     

    Sent you a message.  Email me back and we can chat later tonight.

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 6, 2011 4:47 PM in response to mrvoeg
    Level 1 (5 points)
    Nov 6, 2011 4:47 PM in response to mrvoeg

    Mrvoeg,

     

    I placed an order for the LaCie 2TB Thunderbolt Drive from www.bhphoto.com.  It's a pre-order that is suppose to start releasing Monday in limited quantities....since I placed an order the day before I'm sure I'm on the very bottom of the list so who knows why I will get it.  No tax so it's cheaper than Apple's website and Apple has 4-6 week wait anyways.  As soon as I get it and install Lion on it I will let you know and post some results.  Can't wait.

     

    Also installing Lion on my R4 in the morning.   I will post those results as well. 

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 8, 2011 8:45 AM in response to mrvoeg
    Level 1 (5 points)
    Nov 8, 2011 8:45 AM in response to mrvoeg

    Mrvoeg,

     

    I just read this... http://www.engadget.com/2011/11/08/lacie-little-big-disk-thunderbolt-ssd-review/  It's way over priced since you can get a Pegasus R4 in Raid 0 for $100 more.  I now have the Pegasus in Raid 0 and it's a solid 450MBps write and read...more powerful than the LaCie one on write, about the same on read.  Pricing just doesn't make sense or maybe they don't care about the competition's price/product?


    Did you see the LaCie's 1Tb and 2TB are up $50 each in price now...  I ordered one under the old pricing but who knows when I will actually get it. lol

  • by mrvoeg,

    mrvoeg mrvoeg Nov 8, 2011 11:24 AM in response to Smphoto74
    Level 1 (0 points)
    Nov 8, 2011 11:24 AM in response to Smphoto74

    Smphoto74:

     

    sorry, I was a little bit busy this weekend - got my Mac Mini and the Thunderbolt Display and had some little problems to solve (Keyboard + USB). But this is another story (fortunatly with an happy ending).

     

    You are right, the price of the LaCie is down. But unfortunatly I have to wait a while. Because of the Display and the Mac Mini my budget is exhausted for this month Chrismas  .

     

    But I wonder if the LaCie needs an external power supply to work? In the field I use two FireWire 800 drives at the same time and I they get enough power to work from FireWire plug.

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 8, 2011 11:36 AM in response to mrvoeg
    Level 1 (5 points)
    Nov 8, 2011 11:36 AM in response to mrvoeg

    The LaCie drive needs a external power supply to work.    Maybe a car power converter would work? 

  • by mrvoeg,

    mrvoeg mrvoeg Nov 8, 2011 11:46 AM in response to mrvoeg
    Level 1 (0 points)
    Nov 8, 2011 11:46 AM in response to mrvoeg

    Yes, a car converter should work 12V -> 110V / 230V (we use it for some other devices like the Red raids). But the coverter is bigger than the LaCie. So the Little Big Disk unfortunately is not really mobile (for example if your car is far away and you run out of Memory Cards).

     

    At the moment we use some NEXTO drives (they do have card slots and they are powered by an internal battery). But they only have USB and ESATA.

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 8, 2011 11:56 AM in response to mrvoeg
    Level 1 (5 points)
    Nov 8, 2011 11:56 AM in response to mrvoeg

    Yeah, there is always something. lol  I am getting 450MBps out of my R4 in Raid 0 but my network speed is maxing out at 120MBps....so not fair. lol  I need a 100' Thunderbolt cable with a 5 port Thunderbolt hub... lol  I know, not asking for much. lol


    I got 120GB of Compact Flash cards for my camera and I connect it to a USB memory card reader...  You only go as fast as the slowest link...time to ditch USB world wide. lol

  • by mrvoeg,

    mrvoeg mrvoeg Nov 8, 2011 11:58 AM in response to Smphoto74
    Level 1 (0 points)
    Nov 8, 2011 11:58 AM in response to Smphoto74

    You are right, there is much work for the engeneers in future .

  • by Smphoto74,

    Smphoto74 Smphoto74 Nov 8, 2011 12:11 PM in response to mrvoeg
    Level 1 (5 points)
    Nov 8, 2011 12:11 PM in response to mrvoeg

    This is a little off track but check this out... http://www.canonrumors.com/2011/11/canon-eos-c300-announced/  Some of my friends are in the videography business, I am a photographer but have always had a thing for video editing.  Love the new FCPX and cannot wait to install it on the LaCie Drive when I get it.  I plan to use the LaCie drive for Lion and Apps and FCPX work...this will be on my iMac.  The R4 is on another iMac which gets most of the edting.  I still edit files on the R4 but it's across the network at 120MBps...   I shoot with Canon's 5D mkii and the video is pretty decent.  I do plan to get a 1DX next year when it releases in March. 

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