Mac Pro :: Raid 6 Versus 60?
Oct 8, 2010
Okay, so... To make a raid 60, you make a raid 6 first then stripe that. If you started with a 4 disk raid 6 array and increased your number of disks to 8 when you stripe it, I have no trouble visualizing performance and capacity advantages.
However, I'm having trouble visualizing trade offs, speed or capacity differnces if you compared a 8 drive raid 6 vs an 8 drive raid 60.
If you are not Nanofrog, but you did stay at a holiday inn last night, you are welcome to reply as well.
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Apr 20, 2010
I am planning on getting a 2010 MP when they come and have a question about it. I am 90% sure that with my budget, I will not be able to after a RAID card. I am wondering if software RAID would be alright or if it's so bad it's not worth doing. Also, there is small chance that I could buy a RAID card later on, how would I install it? I will be using it for 3D animation with Maya and some zbrush modeling. Also I will be doing some Photoshop and illustrator and maybe some gaming on win 7 boot camp. Feel free to list any other pros and cons about either a software RAID or hardware RAID, I wana make sure I have all the details before making a final decision on it.
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Apr 7, 2009
Having spent that much on a computer, added to the fact that I'm now starting to get more music/audio freelance work, means I'm keen to get a decent backup system going. I aim eventually to get a 1tb external drive and use time machine to backup my samples drive, but what do you reckon would be the best option for the system drive?
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May 16, 2007
I have a PowerMac G5 and need to purchase an internal RAID card to create a RAID 1 mirror of the system drive... one that will allow me create a Hardware RAID 1 mirror, not software RAID through OS X.
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Dec 2, 2009
I just bought a Guardian Maximus RAID1 kit and I have two 1TB drives in it. I'm using it over Airport Extreme as an airdisk (mac osx 10.6.2)
My question is simply: am I running a risk by partitioning it into two partitions? Should I ever have to rebuild the failed disk (which I understand is really simple with the Guardian Maximus) - will it have trouble doing two partitions? I'm using one 500gb partition for time machine and one 500gb partition as redundant itunes/media.
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Jan 28, 2009
I have a Lacie ext hard drive with 2 x 250gb HD that were one RAIDed into a single 500gb HD. I ran this update Lacie firmware update: http://www.lacie.com/support/drivers...r.htm?id=10053 And now my HD will only show up as two separate HDs of 250gb instead of a single RAID HD of 500gb.
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Nov 2, 2009
I'm looking for a new monitor to go with my MBP, and I'm stuck trying to choose between the ones listed above.
The 2407WFP is a couple of years old now I guess, but it's the rev A04 version, which supposedly fixed the (few) problems with what was otherwise meant to be a great screen. It's an sPVA screen.
I've heard good reviews of the G2410, with its LED backlighting. It's still a TN panel and I hear so much bad stuff about them.
The 2209WA is an eIPS panel which I like the sound of, but it's smaller and lower resolution.
The F2380 is a cPVA panel, the image quality looks better but I've heard bad things about blacks on this panel.
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May 1, 2008
I have a macpro with 4 x 1tb drives
Is it possible to get a highpoint raid controller and put those 4 drives in a raid 5 array (and then create partitions inside that array) - or do you need to have 1 drive by itself for the operating system, and then create a raid array using the remaining 3 drives?
Lastly, are the highpoint 3500 series a decent card? and fully compatible?
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May 20, 2009
I have a new Mac Pro Quad 2.93 with the Mac RAID card installed with four 1TB drives setup in a RAID 5 array. When creating the volumes in the RAID utility, you can not edit them, resize, etc. If one large volume is created in the RAID utility, you can then partition that one volume using the Apple Disk Utility, which then allows you to resize if needed.
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Sep 13, 2009
I'm using the software RAID right now. Everything is set as RAID 10. I want to move to a RAID card� if I keep it as RAID 10 will I still need to redo everything?
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Jan 28, 2008
ive put 4 of the hitachi 1tbs in my new mac pro.. and i really want to do Raid on them eventually.. and buy the pricey apple raid card.. i'll do it.. but speed wise:
How fast is a Sata connection straight from HD>Motherboard... ~75mb/s?
Is the Raid 5 config with all those drives much faster... around ~110mb/s?
Do you know if there is anyway to get a 5th drive into the raid 5 array? using the ODD space.. or some externals too... i need as much as space as possible...
And boot camp wont work with raid card anymore? I was thinking to have the startup disc be a raptor to increase speed on the apps, how would it integrate with the raid card, etc
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Nov 16, 2009
I have a RAID 0 set up with two 1.5TB HDs. I am doing some reorganizing and want to take all the data on the RAID 0 and move it to one of the hard drives in the RAID 0 and create to single drives. Is there any way of moving all the data from a RAID 0 onto one of the HDs?
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Jan 5, 2011
I'm pretty satisfied with the Marware cover, although it can be a little frustrating when typing quickly..I'm wondering if I should go back, return the Marware cover and pick up the iSkin.
So, for those of you that have any of these in comparing..which do you think is the best?
And yes, I did search and am aware threads like this exist..but I couldn't find any comparing all three, only iSkin vs. Moshi.
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Apr 30, 2008
I'm trying to decide which product to buy and I was hoping for some advice.
First and foremost I want a device so that I may transfer my VHS tapes to DVD.
Live TV recording is secondary but for the price, I'd like to find the device that suits me best so I can continue to use it after i've transferred all my VHS.
Here are my concerns:
1) I'm going to be moving from the US to Ireland in a couple of months (not sure for how long, could be years+) Obviously there's the whole NTSC vs. PAL, ATSC vs. DVB.
I know with EyeTV 250 it's either or, any ideas if buying some sort of converter is an option (prices, quality)? If I bought just a PAL one, would I still be able to convert VHS or would it be completely unusable in the US?
2) I'd like some sort of HD/Digital abilities. From what I can tell TVMax is analog only and Blackmagic may also be but I can't find more specs on that.
Does this mean they'll be useless once the US undergoes the conversion?
So as of now I'm leaning towards EyeTV 250 but the question are there any forseeable problems with using a PAL to NTSC converter or using a PAL EyeTV in the US just to convert VHS.
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May 15, 2009
I have never setup RAID before and this question may be totally stupid for that matter.
Can I setup RAID 1 (or call it mirroring) without the RAID card? I have two 1TB internal drives in my Mac Pro and I want to mirror them. I don't want to spend another 700 bucks just to setup a mirror.
Disk Utility shows some RAID options, but I am not sure how to use them, or if they will work at all without the RAID card.
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Feb 14, 2010
On my 2009 Mac Pro, OS X's disk utility seems to allow the provision of making a mirror RAID or a stripe RAID.
Is it possible to shove in 2 drives, make a RAID 0 for two of them, and then add in 2 more drives to make a RAID 1 out of that RAID 0? (a RAID 0+1?)
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Oct 25, 2007
So I have a 1.8ghz dual G5 with 3gb of ram for work. I mainly work in Adobe CS and do a far amount of Photoshop work. At any given time I may have all of Adobe CS plus Office and a few other apps running -- and a gazillion fonts. Went to the store and saw the new 24" iMac. How would a new iMac compare to my late '04 1.8DP G5? On that same note, how would a new MacBook Pro compare to the above?
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Oct 25, 2009
I am planning on purchasing a new display for use (currently) with my imac. I am completely torn between these two models, and cannot make a decision. Any thoughts? I like the Dell because it is LED backlit, thus good blacks and little to no backlight bleed. But I like the Samsung because of the (supposedly better panel and (supposedly) better color reproduction. I like the simplistic look of both of them (though they could look a little better ) so I'm not sure which one to buy.
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Jun 30, 2009
I ran some tests on my 2009 Quad Nehalem to try and determine what was up with the triple Vs dual memory "brouhaha".
I posted the results as a new thread because I think it will be useful information for a lot of quad owners, but it was originally going to be a reply to this thread: http://forums.macrumors.com/showthread.php?t=735845
Here we go. Tesselator suggested 3 tests that could show the differences in speed between triple and dual channel bandwidth.
Quote:
As one idea I would maybe try creating a few very large images (16-bit, blank white, blank black, gradient fill) and then duplicating and deleting that layer repeatedly a few hundred times.
So I did them, 10 times each. I could have gone on, but the results were very very stable after the first 2 attempts.
Set-up: a 40Mpx, 16bit image (8000*5000). First test it was simply filled white; second test: black; and third test a black to white gradient. I added a fourth test, using a real (photo) 12Mpx RAW image from my Nikon D300.
I created (took a while!) an action with 350 repetitions of "duplicate layer" and "delete layer", followed by a red fill to let me know the action was done. The same action was used in all four tests.
The computer was restarted before each of the four tests, which may explain the irregularities on the first 1-2 attempts. Nothing else but PS4 was launched.
The results are interesting:
We can clearly see that the simple white and black fills show a speed difference of around 10%.
We can also clearly see that this difference disappears when a more complex image is used. The use of more complex images represents a much more realistical use of PS.
To make things even more realistic, I also tested RetouchActions's speed test on my own 12Mpx image. I use nearly all of the operations of that action on a daily basis, so it's a lot more representative of the work I do on PS.
Here are the results:
The results are clear: 11% increase in performance using 8GB of ram (Vs 6GB) when working on a 12Mpx image.
Added info: number of page-outs after running the 10 test series (after about 45 minutes of intense PS work):
-17K when using 6GB (1.7K page-out avg).
-10K when using 8GB (1K page-out avg).
For me the results are definitive: unless I plan on working only with full black or full white images (not even black and white!), having 8GB is better, even when working on smallish 12Mpx files. I imagine the differences would have been even greater using bigger file sizes of actual complex images.
What would now be interesting: someone with a 2009MP Octo doing the same tests at 12GB and 16GB.
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Aug 17, 2009
Two short questions on which I really need an answer. This academic year, I'll be writing a lot of papers, but most specifically, I am forced to use SPSS (statistical software package for social sciences).
Will I really need the 2.93 over the 2.66 and notice the improvement?
Same goes for the gfx. I like full-hd 1080, I'll be in InDesign, and use Logic Pro. Will I need "slash" notice the 4850 over the gt130?
Also, are the "hang-ups" with the 4850 truly fixed and does it indeed run a lot hotter (inc. really that more noise) than the gt130?
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Nov 24, 2009
I like eMacs but the G5 looks sooo nice. I know I probably won't be able to use any for very long but whatever. What is the best?
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Feb 14, 2009
I've heard Office:Mac isn't that great, and doesn't make up for what iWork 09 is missing. So I'm wondering what people think about it and why does it get such a bland reputation? Also, do people use a combination of the above? Such as iWork and Office:Windows? Both Offices? I do mainly word processing, some soft Excel work (no hardcore giant spreadsheets...yet), and general PowerPoints for presentations. I have access to cheap iWork/Offices (school discount) and a family pack of the top-level edition of Office:PC (family) so it isn't a big deal to get any of the above.
Lastly, what's the difference between Camino and Firefox? I use Firefox currently and love it, mainly due to the add-ons (weather at the bottom, Gmail alert, skins, page views, other customizations). Tabs seem to be on all browsers these days, so are there any other key differences?
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Jun 25, 2010
Soon i will be getting a Mac(i think) and was wondering about a case. Since i want a Macbook Pro with the Unibody Housing i want it to be safe. Now i can't decide if i want a case or a Sleeve. Now the Case might have heat issues even with the vents that are on the case. The sleeve won't have that issue but will it be more prone to scratching the Macbook it self? Or should i go no case and just sorta deal with the scratches. There is a Price difference between the Sleeve and the Case. About $20 Cdn more for the Case.
Sleeve[URL]
Case[URL]
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Dec 12, 2010
I have a silly RAID question, and I can't seem to find an answer via the search.
I have 4 disks that I want to put in a striped raid. One of those disks (disk 1) has data that I'd like to keep.
If I put these 4 disks in the striped raid will I lose the data that is on disk 1?
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Aug 5, 2008
Currently I have a stock 320G drive installed with a 750G F1 Spinpoint installed as a Time Machine. I have maxed the 320 out so I'm looking to get a bigger drive.
Question: looking at the F1 Spinpoints, should I do 1x750 with 32M cache? Or 2x400G in a software RAID0? The 400s have a 16 Meg cache, so 32M total.
What's better? Do you think I'll see a better performance boost by striping over 2 drives with 16M cache each, or sticking with 1 drive with a 32M cache? And with the 2x400, I'll gain about 50 Gigs of storage over the 750G drive.
2x400 is $156
1x750 is $125
Is this a decent boost for only an additional $25, or should I just save a drive bay and get 1 drive?
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Oct 19, 2007
My Mac is beginning to run low on free HDD space. I'd like to add a second internal HDD to boost space. However, I don't like having a completely separate HDD icons because I can never remember which files are on which disk, not to mention a lot of copying between the two.
I'm considering adding a second HDD and combining the two into a RAID setup. Do I have to reformat my existing disk, or can I just add the second HDD's storage onto my existing disk with Disk Utility?
If I can just pop in a second HDD and add its capacity to the existing one's, that'd be ideal. Having to clear off the existing disk before joining the two would be a chore, though.
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Sep 25, 2010
I have a RAID 0 set up on my 2009 MP. I am using two 2TB Caviar Blacks and have my boot drive on a OCZ 120GB Vertex. I have 50GB of iTune music on that drive and want to move it to the RAID 0.
Is it as simple as using the preferences on iTunes and choosing the 'Data' volume (name of my RAID 0) and assigning iTunes to that drive? Is this the guide I need to follow?http://macperformanceguide.com/Setti...ing-iApps.html
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Dec 17, 2010
LSI 9240-8i SAS RAID for BootCamp only. Will it be bootable for BootCamp? Anyone using that card? I need to connect 4 SSD drives to work with my Mac Pro for Windows 7 Ultimate 64-bit.
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Feb 24, 2008
Ive heard conflicing statments that the raid is software/hardware. anyone know for sure what it is (Im not talking about that card you can buy).
If it is software raid does this take a toll on the processors? is it serious or does it not matter at all.
IF it does matter. should I buy a exteran raid card? is there a mac compatible one. I just need basic raid0.
I just bought 2 samsung spinpoint F1 750s in anticipation of my new mac. But just want to make sure that raid is a wise decision.
for those who are thinking about replying about the dangers of raid. I know. I have time machine. if the raid goes down then so be it. such is life. I will have backups.
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Nov 8, 2009
OK I do some Video Editing and Motion Graphics with FCP and Adobe After Effects.
I have a Mac Pro 2009 with 4 1TB Drives and 2 1TB Lacie Fire Wire 800 Drives.
This is the setup i have
1st Drive Mac OSX
2nd Drive is Windows 7 OS
3rd & 4th Striped and Mirrored to the 2 Lacies External Drives that are Striped. (raid 1 + 0)
My first question: is this a bad system? should i set it up a different way?
Second: is If a Drive goes out in the Raid 1+0 how will i know and how can i put a new drive in to fix it? How does this work?
Third: I set the RAID up with disk utility, is this ok, bad or good?
Fourth: IF the the OS Drive goes out will and i replace it and format it, will the RAID 1+0 Still be there? some where i read that its OS dependant?
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