OS X :: RAID Striped Increase The Speed With Regular USB HD?
Mar 18, 2009
I'm quite new to the OS (Level) Raid concept provided by the Disk Utility within Leopard OS X 10.5.6 and other OS X OS's, but I saw a great video showing 2 USB External HD's hooked up to a macbook running a raid to tie them together (striped or mirrored). This concept is simple! But heres my situation:I have an iMac 22" 2.4 GHz Intel Core 2 Duo, 4 GB 667 MHz DDR2 SDRAM, Running off of a "298.1 GB WDC WD3200AAJS-40VWA0 Media Hard Drive". I also have an External Drive "465.8 GB WD 5000AAV External Media".
Does anyone know if it's possible to have two sets of striped drives using a single hardware RAID controller? I'm looking at the ARC-1210 and it seems like you can have more than one set of striped drives, but I'm not positive. My plan is to have two small SSDs set up for the boot drive and two HDDs for storage, each pair set up with RAID 0. Can this be accomplished using a single controller? Note: I'd just use OS X's software RAID but I need to keep the cores freed up for computation. I'm not concerned with redundancy--just speed.
I have (2) Patriot Torqx 256GB SSD's in a striped RAID array powering my MBP. Where I have enjoyed the incredible performance, it really killed the battery life of this machine.I am in the process of "un-striping" them now and reinstalling OS. Any advice on best configure files to best utilize the new configuration? Should I keep boot files and documents on different drives?
My current setup consists of my boot drive (250GB), a striped RAID (500GB) for storage and a 1TB Time Machine Drive.I have recently bought a new 1TB internal drive and would like to replace the striped raid with this drive, thus freeing up two 250GB drives - 1 which i will keep internally and the other will go into a external enclosure My question is can i just copy the files from the RAID to the new internal or do i have to use software to clone it?
I am checking out the market on SSDs for my Macbook Pro and I've found a few manufacturers differentiate their product lines as "regular" SSDs and Raid-Ready SSDs. The raid ready's being more expensive and having a little less space. I'm not as tech savvy as I should probably be, so I don't know what Raid or Raid-Ready means and what value it might have.
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
I was thinking of installing a second 500BG hard drive in my powermac G5 and setting it up for raid 0. Will i notice any major increase in performance? (i'm planning on running Windows XP x64 on the system through Parallels Desktop)
Setting up raid 0 for my mac pro 3,1. Right now I have the stock 320GB drive that I use with Mac OS X, and an additional 500GB drive running Win XP through Bootcamp. I read on apple's site that you could stripe multiple drives to create a raid 0 to increase performance on the Mac Pro w/o the raid controller card. So my question is how do I do that? I'm in the process of picking a new 2TB drive to set up the raid with the 320GB OS drive. Since the 500GB one is dedicated for XP I don't think I could include it in the raid right?
I know that the server version has a 7200 rpm HD, but what about the regular version? Also, is the 500GB upgrade HD on the vanilla model a 7200 version?
I'm looking for an app for my mac which can test my ADSL download speed automtically at regular intervals through the day and log the results for me to look over later.
I have had my mac for a little of year, a few days ago I downloaded a few things. Since then it takes it about 10-15 minutes to start up, even after it starts up it takes a few more minutes for things to work at a regular speed. I have cleared firefox cache and reset the Pram.
I'm about to reformat my HD and do a fresh install of OSX10.6. I read that zeroing out with disk utility can map bad sectors and even increase write speed slightly. Is this legit? Should I take the extra time to do this now to save time later? Here's the link: [URl]
Does anyone know if I can increase the track speed of a Magic Mouse any other way the the mouse settings page because even on the "Fast" tracking setting it feels brutally slow to me.
Anyone else notice a 1000rpm CPU fan speed increase on their G5 after the last round of system updates? My CPU's used to idle at ~120*f with a fan speed of 500rpm. After the 10.5.2 update they idle at ~89*f and 1500rpm. There is no perceptible noise change and I didn't even notice the change until I saw the cold CPU temperatures. I'm not worried about it, I'm just wondering if I'm alone or this is one of the system level .2 changes not massively publicized.
So I've heard a lot of people get over heating, core shut downs etc on their MacBook Airs when on youtube, well I just watched a 5 min video and my temp never got above 60c at the default fan speed and didn't have a core shut down either. Or are you guys watching youtube for hours on end before you have issues?
Hoping to keep Mini awhile longer but not happy with the speed. Would a new HD increase speed?? Currently mini = Processor 1.5 GHz PowerPC G4 1GB. What is the max HD I could but in it??
I have a base model June 09 13" Macbook Pro running 10.6.2, during normal use CPU temp. is fine, lower than my previous Macbook 07 edition. However, when I use handbrake, the temp spikes very quickly, I know this is normal as the processsors are being used at 100%. However, unlike my old Macbook, the fan takes a long time to spin up to counter the increase in CPU temp. I see 101 degrees centigrade and the fans are still at 2000rpm. After a few minutes they react and slowly increase to maximum. I am not comfortable with this temp, my old Macbok used to only get to 85 degrees centigrade. I have read about SMC fan control, is there a way to set this so that it increases the fan speed at lower temps without having a detrimental effect on battery life.
i gotta say, i love my mac and all, but it has such a poor download rate- mostly with torrents, though. It will NOT go above 100 kB/s, and i can't figure out how to fix it. i set the download speed to around 80, and it still doesn't work. i've been downloading a game( it's around 1.2GB), and i've been downloading it for two or three hours-it's only at 29%. what the heck?
I have an Apple Imac running OSX 10.4.11.I recently signed up to a satellite internet service and the speed and reliability are very poor.
It seems to take forever to download a website. When I use Google with Firefox, more often than not I get a blank screen. If I hit the reload button the page may or may not load. The ISP tech support point the finger at Apple; Apple support points the finger at the ISP.
The ISP tech support guy who installed the satellite service knew nothing about Apples but the service seemed to work fine when he tried his PC laptop.
I have a late 2011 MacBook Pro with 8 GB of RAM installed - I bought the Corsair memory from Amazon for under $50 and installed it myself. Amazon now has a 16GB kit fro Corsair for only $100 - the least expensive price I've found. The only RAM intensive app I really run is Photoshop CS6,but I do keep a lot of apps open at one time (Acrobat Pro X, Outlook, InDesign CS6, Illustrator CS6, Word, Parallels running XP, iTunes at the moment) and I was wondering if the extra RAM would actually help me out. I'm looking for some advice from people who have already upgraded to 16 GB... can you actually tell a difference?
Info: Mac OS X (10.7.4), 8 GB RAM, 500 GB int, 1 TB ext
How to increase speed of my Safari browser since removal of Java. I don'tknow why this makes a difference but both Safari and Firefox load all sited very slow. I have checked with my ISP and no change there.
have a speed comparison between a RAID 0, 1, 5, and possibly a 01 on the new Mac Pro. I found a few reviews from other manufacturers, but I was interested in how read / write speeds for the Mac Pro and the Apple RAID card stack up. I'm particularly interested in how much slower a RAID 5 is then a RAID 0.
I got my Intel Gen2 SSD's over the weekend, and have installed them in Raid 0 using icy dock converters, I cloned my OS onto there from my caviar black raid 0, so I want to run some sort of throughput test to compare the two, not application specific as I don't do any of the CS4, video stuff, just plain old read and write tests
I spent two weeks obsessing on what type of drive to put in my new 8-core Mac Pro (january 2008). I was all set on spending $$$ and go with two 1-TB Samsung's but at the last minute I read this:
[URL] which posted better World Bench ratings than a 10k Raptor and is quieter than WD's Green drives - NewEgg had been out of stock of this brand new drive and suddenly got a batch in and I ordered two of these (WD Caviar 640 Gig / 16 meg cache w/only 2 drive plates). This drive is LIGHTNING fast....I've got before and after bench marks to post, I went from a 56.84 to a 102.91! Also, these installed so easily - not a single hitch!
What do you guys think?I am also curious as to the clock speed of the new upcoming processors. Online it says the fastest one they have is 3.2 GHZ, so will the speed increase come from DDR3 memory and no frontside bus?Does anyone know the actual technical differences between the current processors and the upcoming, other than the memory and frontside bus?
I just found that when I download from the net, via http, my internet speed is up to 50 kbps but I used transmission once which offered me more than 200 kbps, which means that my net is able to get more than 200 kb/s so can anyone tell me how how to get more speed on applications like safari.
I began to upgrade the operating system over the last year and now have Lion OS 10.7.3.The overall speed is very slow now - even just OfficeMac programs like Excel - opening programs/apps and delays when typing emails or Word docs [even this message....].Any basic changes I can make [more RAM, etc] without buying a new computer?
