Mac Pro :: Apple Softraid Support 2 Arrays?
Aug 6, 2009I'd like to try it but I don't want to risk my existing array.
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Mac Pro :: OS X Corruption Of Raid 5 And 6 Arrays?
Nov 30, 2010I was inquiring as to buying a raid-6 array from a well known company. I received the following as part of a pre-sales discussion. I have never heard this before, but wanted to seek others opinions as it sounds just too bizarre to be true - I mean how can people run snow leopard server if this is the case and manage data? He is recommending Raid-0 arrays backed up to another raid-0 array nightly, fwiw. For the record, I'm looking at Atto hardware cards and mini-SAS 8 bay enclosures, not software raid. Text of interest:
"These days a drive failure isn't the most common means of losing data. What we see the most problems with is what's called data corruption. It's when the data stored on a drive becomes scrambled for one of several reasons. On a software based RAID 0 it's usually easily repaired with tools like Disk Warrior or Tech Tools Pro. When the problem occurs on a Hardware based RAID 5 or RAID 6 the parity can quickly become unreadable making the RAID unusable by the computer. There are no tools that can repair the corruption on a parity RAID once it reaches a certain point. The problem arises because the parity data is stored across all of the drives, and in the case of a RAID 6 it has 2 sets of parity stored on each drive making corruption a huge problem.
If everything is going correctly and your workflow is correct you shouldn't see much corruption. We do see a lot occurring when video is stored on drives, and at times software or OS updates cause corruption all by themselves. OSX is famous for the problem since 10.5 came out. One common way to create problems for yourself is dragging and dropping files from one location to another. When you drag and drop you do not get the whole file, some of the index is lost. Do this enough and you'll have a problem because it's cumulative. Try this; do a "Get Info" on a file and note the file size. Then drag that file to another location and do a "Get Info" on the destination file copy. You'll see that the new copy is smaller, it's lost some index data. Do this enough and the file can become unreadable and will have to be repaired. Do it enough on a parity RAID and you can make the file unreadable and irreparable."
Mac Pro :: The Correct Sequence To Setup RAID Arrays?
Jul 19, 2010Yesterday I bought a new Mac Pro. I absolutely LOVE it, and don't care if they replace it tomorrow. It is a terrific machine. I do want to set up two sepeate RAID arrays inside it, and could use a little help, as I've never done this before. I want to set up one array, of two large (say 1TB) drives in mirrored (RAID 1?) format for all my data. I want to set up another of two smaller (300GB) WD Velociraptor drives, which I already own, in striped (RAID 0?) format for the operating system, and my applications, as well as a bootcamp partition.
This is where it gets complicated for me. Much of my data is on one of the velociraptor drives in another computer. My question is, can I install the two new 1TB drives, set them up as RAID 1, using the original drive that came in the Mac Pro, move my data over from the old computer, then install the velociraptors, set up that RAID 0 array, and install the operating system. In other words, will the "new" operating system recognize the data raid array that I had created with the "old" operating system?
An easier question. When setting up the operating system on what will be my new RAID 0 array, do I just boot from the CD? and secondly, do I first set up the striped raid, and then install the operating system, and then the bootcamp partition? Or is there a different sequence to use.OK finally, when booting into windows through bootcamp, will windows be able to see the seperate data RAID array?l
Mac Pro :: Using Multi Leo/Vista Boot RAID0 Arrays From SSDs
Aug 4, 2009As we discussed in other threads it could be particularly advantageous to use SSD RAID0 arrays for dual or even multiple booting. With a decent amount of striped SSDs the idea is to run all your operating systems and applications with high speed. At least that is the theory. To test the idea I have decided to use two Maxtor 160 GB HDD in a very basic dual RAID0 array configuration for booting OS X and Vista-64 in AHCI mode.
Here we go:
First thing I learned is that you have to partition the HDDs prior to building your array.
Second thing I learned is that you have to keep it all in HFS+ to make it work.
So now I have used disk utility to create two equal size partitions in HFS+ with GPT on both HDDs.
Next I fused the two lower partions together for a first RAID0 array named 2R-Leo. Format is still set to HFS+ and RAID0 mode is selected.
Then I fused the two upper partitions together for a second RAID0 array named 2R-Vista. Here format is also set to HFS+ and RAID0 mode is selected.
With that done I exited the disk utility to get a fresh start on it. I then entered disk utility again.
MacBook Pro :: Media Backup - Mirror - For Bigger Arrays?
Jan 6, 2010At this point I wish I just got a MacPro instead, this wouldn't be a question. I have a new 17"uMBP, bought specifically to take advantage of eSATA through the expresscard slot. I do photography and video work. I bought the best possible card, the Sonnet Tempo dual eSATA, to offer highest transfer speed and because it's the newest technology. To accommodate my media I bought a OWC Mercury Elite Al-Pro 2TB RAID 0. It's great. I wish I got the Qx2 RAID 5 but it's a little pricey and expensive to upgrade, but at least it has redundancy. I need to have a reliable backup solution. Drobo is expandable but I've seen so many poor reviews. I could buy another Al-Pro 2TB RAID 0 and connect them both and do a software RAID 1 with them. Or I could buy a cheap 2TB eSATA external and do daily backups. I could also get a dock and fill up drives as needed. Is there really an advantage to mirroring other than if my drive fails in the middle of a job? Wouldn't the software RAID needlessly slow down my system? Even if I did get the Qx2 RAID 5 it is bad to rely on such a system by itself to both store and backup my media or is it in itself a very reliable solution?
View 6 Replies View RelatedMacBook Pro :: TV's Does Apple TV Support?
Jun 2, 2012I am looking to connect wirelessly to two external displays (TV's). I am wondering if I need to purchase a Apple TV for each display from my Macbook Pro, or can Apple TV support multiple external displays. Also, do i absolutely need airparrot when looking to extend my desktop to these displays?
Info:
MacBook
Pro, iOS 5.1.1
MacBook Pro :: When Does Apple Support Direct X 10 And 11
Sep 22, 2010Linux gets Direct X 10 and 11 support. There is also Trim support for SSD in Linux, so what is Apple doing these days I wonder.
View 5 Replies View RelatedMacBook :: Getting Higher Up Into Apple For Support
Aug 4, 2010Does anyone have any tips for getting higher up into apple for support. I've been trying to get my unibody polycarbonate macbook repaired. The hinges are cracking and the rubberized bottom is starting to curl. Spent almost 40 minutes on the phone this morning which was mostly about explaining that the macbook DOES have a rubberized bottom and not little feet. How can i get some support from someone who isn't a moron?
View 2 Replies View RelatedITunes :: Is There A Way Without Contacting Apple Support?
Jun 19, 2012i have no idea how to get it back, is there a way without contacting apple support?
Info:
iPad 2, iOS 5.1
Software :: Uninstalling Apple Support And Updates Possible?
Dec 23, 2010I operate Windows xp on Gigabyte Motherboard, Intel Dual Core Processor. I want to uninstall the following software from my computer:
1. Apple Application support v 1.3.2 - 44.50MB
2. Apple Mobile Device Support v 3.2.0.47 - 20.13 MB
3. Apple Software update v 2.1.2.120 - 2.26 MB
4. Bonjour - 1.10 MB
These software show up on my Revo Uninstaller Pro. When I try to uninstall (e.g. Bonjour) a Windows Installer box appears which reads: "The feature you are trying to use is on a network resource that is unavailable" with two buttons 'OK' and 'Cancel' after this line. Below this, another paragraph says: "Click 'OK' to try again or enter an alternate path to a folder containing the installation package 'Bonjour.msi' in the box below". Below, is a box titled "Use source:" In front of it is a button 'Browse'.
MacBook :: Apple LED Display Does Not Support HDCP
May 14, 2009I have a unibody macbook connect to Apple LED cinema display, and using VIsta to play Blu-Ray disc using FastMac external Slim drive and PowerDVD, but cannot play content due to HDCP non-compliant display. I have heard so many people said LED can support HDCP through DisplayPort, but appear to be not the case. Using AnyDVD HD can by-pass this, but that is really not the ideal solution for me. Anyone can get Blu-ray to play on Vista on a LED display?
View 7 Replies View RelatedOS X :: Apple Support Area Mac V10.6 Snow Leopard
Aug 28, 2009Apple's support area for SL is up! Apple.com > Support > Discussions > Mac OS X v10.6 Snow Leopard [URL]
View 1 Replies View RelatedOS X :: Apple's Own Website Doesn't Support Quicktime X?
Sep 3, 2009I thought that I would just point out that when I went to watch the iPod touch Guided Tour on Apple's website, this showed up:I would also like to point out that I upgraded to Snow Leopard, I didn't install Quicktime 7, meaning that Apple's own website doesn't support the newest version on Quicktime.
View 6 Replies View RelatedOS X :: Apple Support System - Website Currently Unavailable
Jun 21, 2010Been trying to dl 10.6.4 combo for the past 3 days and getting max dl speeds of 40-60Kbs. All the usual suspects eliminated: cable modem, router, and traceroute to the server showed no significant lags. All other downloads normal. Sent an email to Apple yesterday, then tried the dl again today. Got this message: "Due to a scheduled upgrade of Apple's support systems, some features of the website are currently unavailable. We apologize for any inconvenience."
View 2 Replies View RelatedSafari :: Capturing Apple Support Videos?
Feb 13, 2012I am trying to transition my father to OSX on a new iMac. I've tried several times to get him to commit to getting Internet but he is just not going to. However it would be useful to get the tutorial videos on Apple's Support pages for him to follow as he learns, iWork in particular, but other tasks as well. I've shown them to him in the AppleStore and he seems to like them as a method of instruction. Apple however has changed its method of streaming the video, I can't download them anymore using QuickTime and you can't access them via the Safari > Activity menu either. Why Apple is making it hard to get something they seem to want us to have, seems strange to me. How do you download the tutorials? I'd like to put them on a Flassh Drive for Dad to use at home.
Info:
iMac, Mac OS X (10.6.8), iMac 27" Early 2011
OS X V10.5 Leopard :: Apple Says ICloud Doesn't Support 10.5.8
Apr 13, 2012I want to keep mac email account and apple says iCloud doesn't support 10.5.8
Info:PowerMac, Mac OS X (10.5.8), I want to keep mac.com email accoun
Intel Mac :: Apple Technical Support Always Terrible?
May 11, 2012I tried to get support yesterday, my new iMac cannot locate my printer. It works fine wirelessly with my networked windows pc and iPad. But the iMac cannot connect wirelessly. Basically they said it must be the printer and hung up! Even though the printer works with a pc and a ipad.
Info:
iPhone 4, iOS 5, iPhone 4S needs new router
ICloud :: Doesn't Seem Possible That Apple Will Support Vista
May 22, 2012Doesn't seem possible that Apple will support Vista, but not Snow Leopard.What possible rationalle can there be for this?
View 1 Replies View RelatedIntel Mac :: Does It Support Airplay Mirroring To A Apple TV
Jun 6, 2012does imac support airplay mirroring to a apple tv
Info:
iMac
MacBook Air :: Is There A Support Email Address For Apple
Jun 14, 2012Is there a support email address for Apple?
Info:
MacBook Air, Mac OS X (10.7), 2011
OS X V10.5 Leopard :: Gfortran: lots Of 'idle Memory' After Return From Subroutines With Large Arrays?
Jun 3, 2012Don't know how to file a possible bug report. I checked my OS-X version and it is 10.5.8, maybe more recent versions have been fixed: Here is a cut & paste from the gfortran bugzilla site [reply] [-]2012-06-04 02:38:12 UTC Calls to fortran subroutines that use large temporary arrays fill up 'idle memory' on the MAC-OSX, as can be seen with 'top' or the Mac 'activity monitor'. I found that I can get around this by using: call system('purge') in the code to evoke the command line 'purge' from within the program before the 'return' statement for such subroutines to free the idle memory; but I was wondering whether something could be done more fundamentally at the compiler level to avoid this problem. Without such clearing of idle memory I used to hear lots of disk access being done to get around the small amount of free 'core' memory. Massive arrays would eat up many Gb of core memory by turning it to 'idle memory'. Maybe there is a compile time option that I do not know about. [reply] [-]Comment 12012-06-04 02:47:43 UTC This sounds more like a bug in the Mac OS X kernel/libc and how it handles memory allocation.
View 6 Replies View RelatedHardware :: Mac OS X 10.6.2 To Have Native Support For Apple's Magic Mouse
Oct 21, 2009Native support for Apple's new multi-touch Magic Mouse will require the unreleased Mac OS X 10.6.2 or later, the new hardware's user manual states. Apple's new mouse works with both hardware and software to sense finger position, gestures with fingers, momentum of movements, and more. According to the Magic Mouse manual, the hardware will require Mac OS X 10.6.2 or later. Those on Mac OS X 10.5.8 or later can install the Wireless Mouse Software update 1.0 to obtain the same features. The new Magic Mouse, when purchased separately, has a wait time of 5 to 7 business days. That would imply that the release of Mac OS X 10.6.2, the latest build of Snow Leopard, could be released very soon. Over the past few weeks, three betas of Mac OS X 10.6.2 have been sent to developers. The most recent build addressed a glitch that sometimes deleted user data when logging in and out of a guest account.
The latest build also fixed a number of GraphicsDrivers issues, including a problem where 1080p content played with QuickTime Player X could stutter. That could prove important for owners of the new iMac models, which have 16:9 aspect ratio displays. The new 21.5-inch iMac has a 1920-by-1080 native 1080p display, while the 27-inch iMac exceeds that with a 2560-by-1440 pixel LED-backlit screen. The Magic Mouse manual explains how to understand the hardware's indicator light, pairing of the bluetooth device with a new Mac, replacing the batteries, cleaning, and use of the mouse.
Software :: Apple's Safari 3.1 To Support Download Able Web Fonts
Feb 7, 2008The ability to download and immediately render non-standard web fonts is just one of several advancements Apple Inc. has planned for Safari 3.1, a small but significant update to its share-gaining web browser for both the Mac and Windows PCs. The release, which underwent private testing this week, will tie in a number of other enhancements, most of which have been under constant development as part of the company's WebKit open source application framework since last fall. They aim to provide Web developers a means of writing more dynamic and customizable web pages and iPhone apps, which will in turn provide surfers with a more feature-rich and enjoyable experience. For example, CSS Transforms and CSS Animations will join web downloadable fonts in allowing Safari 3.1 and iPhone users to render web pages and web apps with enhanced design messages and real-time visual effects. By applying Transforms, developers can author trigger actions that scale, rotate, skew and translate HTML boxes in real time. Similarly, Animations offer a quicker route to DHTML/JavaScript effects, such as fading out an HTML element, or increasing the border of a box when hovered over.
Another significant addition to Safari 3.1 will be support of HTML5's SQL storage application programming interface (API), which is a client-side database storage programming interface that will allow a future array of web applications to store structured data locally on a user's machine using SQL. The API is asynchronous, according to Apple, and uses callback functions to track the results of a database query. Also on tap for the new version of the Apple browser is support for video and audio tags as outlined in the draft specification of HTML5, which add native support for embedding video and audio content in web pages. Additionally, they provide a rich scripting (API) that will allow developers tailor playback controls.....
Software :: Apple Extends RAW Support To 11 New Digital Cams
Mar 20, 2008Apple on Thursday released a small software update for users of its photo applications that adds RAW support for nearly a dozen new digital cameras.
The 2.2MB Digital Camera RAW Compatibility Update 2.0 extends RAW file compatibility for Aperture 2 and iPhoto '08 for the following cameras:
Hasselblad CFV-16
Hasselblad H3D-31
Hasselblad H3D-31II
Leaf Aptus 54S
Leaf Aptus 65S
Nikon D60
Olympus E-3
Pentax *ist DL2
Pentax *ist DS2
Pentax K100D Super
Sony DSLR-A200
Sony DSLR-A350
The update also includes a lone security fix that was also included as part of a much larger security update released on Tuesday, which affects DNG image files.
"A stack based buffer overflow exists in the handling of Adobe Digital Negative (DNG) image files. By enticing a user to open a maliciously crafted image file, an attacker may cause an unexpected application termination or arbitrary code execution," Apple wrote. "This update addresses the issue through improved validation of DNG image files."
The security update is applicable for users of Aperture 2 or iPhoto 7.1.2 with iLife Support 8.2.[ View this article at AppleInsider.com ]
Applications :: Apple Support Forum Login - No SLL Encryption?
Oct 10, 2010I just noticed when I went to log in to the Apple Support Forum to post for the first time that the login page does not display the lock for it's security credentials in the upper right corner of Safari. Is this potentially an issue given that it asks for your AppleID that is used for iTunes? The webpage url starts with "https://" but it does not display the lock.
View 2 Replies View RelatedMacBook :: Apple Hardware Test Does Not Support This Machine?
Mar 9, 2008My wifes new macbook has had a few weird things happen, including 2 kernel panics right out of the box. She puts in the restore discs, reboots holding D and gets to the AHT screen. Selects the language then gets the that message, "apple hardware test does not support this machine"
View 6 Replies View RelatedMacBook Pro :: Apple Support Group And Work In 12 Steps?
Jun 22, 2009I even sneak around about it, but still I'm a Mac Addict. The cravings are worse every time there's a new Keynote Address from Apple, new press releases or the WWDC and I feel it starting. So as I type this on my 1st Gen 13" Alum MacBook with my white 3G iPhone next to me I can't help but wonder... Is the 3G S that much faster or the screen on the new 13" MacBook Pro that much brighter? I just want to hold it... Focus, focus... try not get distracted.
View 12 Replies View RelatedSoftware :: Apple Aperture And Canon EOS 450D - Support
May 7, 2008Today I bought Canon EOS 450D. I use Apple Aperture that has support for Canon RAW -images. Or at least for Canon EOS 350D that I had before. Now the thumbnail is shown, but when I double click the image, Aperture tells that the format is not supported. where can I get RAW support for 450D images?
View 2 Replies View RelatedMac Mini :: The Apple Support Downloads Page Is Not Working?
Feb 16, 2012i need to update my mac mini, but the apple support downloads page never loads.
Info:
Mac mini
MacBook Pro :: Apple Hardware Test Not Support On Machine
Mar 19, 2012"Apple Hardware Test not support on this machine"
Info:
MacBook Pro (15-inch Mid 2010), Mac OS X (10.7.3)
