Is raid needed for 720p DVCPro HD

Hello, my question pertains to an internal RAID 0 setup which I will use for DVDPro HD editing [720p]. Is it more likely to fail if it's internal because of the heat it causes? Would a external RAID 0 be better?
I've read that hardware raid is better than software. If i get two Seagate 750GB internal drives to raid, how will I go about doing it through hardware? Or do I not really need a raid for 720p DVCPro HD? I won't be working in uncompressed.
thx

You don't need a raid for DVCProHD.
If you do want a RAID, either go with a Caldigit RAID card (if you want to connect internals) or with an external RAID device, The HDOne is a good choice, there are others.
x

Similar Messages

Urgent: Advice needed for buying my first RAID

Hi,
I am looking to place an order today as I have a pile of editing to get through - so I would love to hear your recommendations!
First of all I am a networking and RAID newbie so don't go all acronym and geek-speek-tastic on me or I won't have a clue what you are talking about. Seriously I don't know my NAS from my elbow!
My requirements are:
1. Suitable for working with HDV
2. 2TB of storage
3. Must work with PowerMac G5 2GHz Dual (later model)
4. Must support RAID 5
5. RAID must be controlled by hardware (on RAID box or via PCIe card)
The following have been suggested - has anyone used them?:
Opt1: http://www.enhance-tech.com/products/desktop/t4_cr.html
(Would probably need to put an eSATA card in my Mac but RAID control is on the box.
Only goes to 80MB/sec - is this good enough for working with ProRes 422? I am looking to convert my HDV to ProRes 422 before output to mpeg2 as I believe this can give better results.)
Opt2: http://www.g-technology.com/Products/G-SPEED-eS.cfm
(Would need to put a RAID controller in my Mac so not so good for connecting to other Macs.)
But I found this and was wondering if it was also suitable (as its cheaper!):
Opt3: http://www.thecus.com/products_over.php?cid=11&pid=28&PHPSESSID=091b7808cfa54754 383932fc512ea056
(Would connect by 1Gb/sec ethernet to my Mac. RAID controller on the box. Someone said stay away from ethernet but I don't understand why?).
Any advice gratefully received. I need to make a decision real quick!
Keep it mellow, B.

It appears that you need to step back and rethink your business. Heck, we don’t even know that you have a business. What you’re up to might just be personal editing. So I apologize if what I’m about to say overestimates you or underestimates you.
FORMAT
You say, “suitable for working with HDV”, but you don’t say whether you MUST work with HDV. As others in this thread have pointed out, HDV is a “poor man’s Hi-Def”. It compresses images so diabolically in Long GOP that image quality suffers, and, as Shane points out, “the long GOP format is very complex and takes a LOT of time to do things.”
The other extreme is recording and editing in 1080i/p at 4K. Very few people in this world demand extreme quality. So, the best format overall is DVCPro HD. Today, DVCPro HD cameras cost only about a third more than the next nearest HDV. What’s more important, to me, is that DVCPro allows you to move away from having to use tape at all. It’s the year 2008 (almost). Tape is over. If it’s too late to sell your camera and switch, then so be it.
STORAGE
You say, “2TB of storage”. For HD work, that’s a bare minimum. My recommendation is to get a 4-tray or 5-tray box with room to grow, even though the extra trays will remain empty your first 6-12 months.
Buy an empty enclosure that you can populate with your own drives. That way, you can use 1TB bare drives. (Don’t buy anything smaller.) You can put together a stack of 5 1TB drives in an eSATA RAID box for less than $2,000.
RAID
You say, “PowerMac G5 2GHz Dual...via PCIe card”. You mean PCIx card. PCIe is for Intel Macs.
You write, “I want RAID (esp. RAID 5... If a drive fails I want to simply be able to swap a new drive in, restore, and be under way again.” But several of your comments indicate that you really don’t need in-line failsafe. For that reason, let me recommend mirroring or something even simpler: a backup drive.
JBOD (Just a Bunch Of Disks) treats each drive in your stack as a separate volume. So, what you see on your desktop is Drive_01, Drive_02. If you subtract the cost for the RAID controller (in the box or in your PCI slot), you can afford to buy TWO plain JBOD boxes, and maintain one as redundant. That satisfies your, “If a drive fails I want to simply be able to swap a new drive in, restore, and be under way again.” In fact, you can skip the “restore” part.
Ken Summerall wrote: “If you are shooting HDV then you have the tapes, those are your backups. If a drive goes down you recapture.”
You responded, “that is not the same as having redundancy of data - and simply being able to swap in a new drive and do a restore.”
You make it sound as though you expect this to happen once a week. It won’t. Backup is good enough. That kind of “time saved” once every year or two isn’t worth it.
SATA vs. FIREWIRE
Again, it’s the year 2008 (almost). Why would you want FireWire? Apple is being so stubborn, pretending that eSATA does not exist, because it has so much invested in its FW technology. But even Apple will be forced to come around in its next models.
While we’re talking about it, the claimed 80MB/sec for the Enhance T4 CR probably refers to the FireWire and USB interfaces, not to the SATA.
ENCLOSURE SHARING
You write, “I also wanted to use the same RAID box with a Macbook Pro. So how would two Macs share the same RAID box?
What kind of sharing do you mean? If you mean that you and your partner can access the same video simultaneously in adjoining rooms, then you need FibreChannel. But, as Shane points out, “...a Fibrechannel setup, then an XServe Server...is NOT cheap.”
As Ken writes, “You can get a eSata card for your G5 and an ExpressCard for your MBP and share the box. With this you could get a Kona or Blackmagic card and capture your footage as DVCProHD and also have a way to monitor your HDV footage.”
Amen.
VENDORS
G-SPEED is reliable, with good support. Caldigit has a platinum reputation. Of course, there are MaxxDigital, Sonnet and Dulce Systems.
Enhance is the new kid on the block, and they are significantly less expensive with, in my experience so far, excellent build quality and quick (human) response. They manufacture in Taiwan, but they’re headquartered in -- and ship out of -- Lower California. So they don’t talk to you in Taiwanese as the cheap enclosure sites do.
So there.
Message was edited by: Al Hatch

Need RAID driver for k8t master2-far package didnt come with disk driver

I bought the K8T Master2-FAR and the VIA VT6420/VT8237 Disk Driver was not included. I'm trying to install WinXP64 but I need the raid driver before I can. I went to the download section of msi and select my board but the drivers are all 32bit when i tried to use them. There are several 64-bit drivers on the msi cd under Adaptec and LSI but not sure which one of these would work for me. Can someone show me where I can get the correct 64-bit raid driver for my board?
Thanks for your time.

Hi all , I have a MSI K8N MASTER2 FAR S940 SLI MAINBOARD with 2 raptor wd and I need raid driver (for hardware raid). Help me!!!

Need RAID Driver for 64-bit WXP - Qosmio F30

Hi everyone..
I'm looking tor Raid driver for winXp x64 bit...
My laptop is Qosmio F30-140
Please help me to find it..
Thanks for help..
Salam

Hello
I Have RAID Driver for Windows Vista x64
http://cdgenp01.csd.toshiba.com/content/support/downloads/raid011016vista_os2007087a.exe
try it on XP 64 i think it will work
Reaver

Advice on 2TB external storage for 1080 DVCPRO HD footage

I'm trying to find the best external storage for editing on a 17" Macbook Pro.
I'll be working on a feature shot with the HVX-200 at 1080i/24pa. I'm figuring we'll need approximately 2TB of storage.
Are FW800 drives fast enough to edit 1080?
Is it possible to run a 2TB SATA raid off the ExpressCard?
And as a side question, is the Macbook Pro fast enough to handle 1080? (we haven't purchased the system yet). It sounds to me like it will be, but wanted to see if anyone had any real world experience with it.
To be honest, I know just enough about the brave new world of the HVX-200 to get myself in trouble, so bear with me.
Any advice on the drives, and even good vendors to get them from, is much appreciated.
17" Macbook Pro Mac OS X (10.4.7)

Why are you shooting 1080? This camera does best at
720p. And in fact, the files sizes will be very
small at 720p24...just 22GB/hour. And since the
chips are really ideal for 720p...I see no gain in
shooting 1080i.
But that is me.
I just finished a show that was a mix of Varicam and
HVX and I edited 720p, and output to 1080p, and it
looked great. Airing on TV this Friday. Sadly, in
Standard Def...
Shane
That's a good question. lol.
The director wants 1080 because there's potentially going to be a 35mm blowup at the end of all this. Depending on who you ask, I've heard 720 may lose anywhere from 10-30% resolution on blowup compared to 1080.
Though it's been a back and forth decision. He's not 100% sold on 1080 (especially because we're finding few people have done it with the HVX-200) and 720 sure makes the workflow much easier.
That's been a question we've been unable to find a good answer to, is shooting 1080i really that much better (to justify all the extra work in the process) than just shooting 720/24pn and doing an upres at the end?
how exactly are the chips ideal for 720p?
By the way, I've been reading your blog. It's one of the best sources I've found out on the net for this stuff... Keep up the good work.
17" Macbook Pro Mac OS X (10.4.7)
17" Macbook Pro Mac OS X (10.4.7)

A realistic assessment of your experiences of hardware needed for the type of editing I do please.

Introduction:
I apologise for the length of this post but from experience of reading here, I'm working on the principle of the more I explain about myself now, the less anyone willing to help me will have to ask later.
I have lurked around this forum on and off for a few years, read the various threads in the FAQ section, particularly PPBM5 and What PC to build thread and other related topics around what system to build. I have found them very useful and in particular have enjoyed reading about Harm Millaard's experiences First Ideas for a new system. For about about 12 months I've been delaying upgrading my PC but in Mr Millard's latest updates on his PPBM6 site he talks about new systems and provides a link to Intel's time line which suggests they are in no rush to replace the i739xx series CPU chip - which has I believe amongst other things 2 cores disabled. Normally bitter experience has taught me not to rush out and buy the latest technology but let others "test" it first and then benefit from reduced prices as that model is replaced. However, it now seems like last years technology is going to remain as this years technology and probably the first 2 quarters at least of next year and, if anything, the price of the i739xx series is at best staying at it's existing launch price or even rising. So it's time to take the plunge for me and upgrade.
My current hardware for editing:
I started with Premier 6.5 after I bought it as part of a bundle with a Matrox RTX 10 card - one of the most temperamental pieces of hardware I've had the misfortune to work with. I later upgraded to Premiere Pro 1.5 and edited with that using a Pentium 4 2.6 (overclocked to 3.2), 3 hard drives (no raid) and 4G of memory. The video footage used was avi recorded using a Canon MVX 30i and Panasonic NVGS27 and now I've added the Casio Exilim EX -FC100 (mpeg format) and a Panasonic HDC S90 (AVCHD).
My PC coped with the editing I did with avi footage but couldn't handle AVCHD format and this convinced me to upgrade to Premiere Pro CS5.5. At the same time I switched to editing on a Dell XPS M1530 (Centrino duo chip) - I upped the memory to 4GB, put Windows 7 64 bit home edition on and replaced the existing hard drive with a faster one. In addition I use a SATA Quickport duo attached to my laptop via an eSATA card. However, either the Quickport, eSATA card or XPS is extremely temperamental - I never see two external hard drives, 50% of the time see 1 external drive or none at all - when that happens I edit around it doing things I can with just the one internal drive - but this problem is not my question.
The type of editing i do:
I know people usually say around here not to try editing on laptops and believe me, I understand why, but using this setup I have been able to edit lots of videos - see here for examples of the type of editing I currently do:
http://www.youtube.com/user/PathfinderPro
The equipment test videos place the biggest strain on the hardware when editing. And, to do this editing I have to convert my AVCHD footage in to it's YouTube format before editing and even after I've done that it can be tediously slow to edit and playback even with premiere set to play at 1/4 normal quality. To convert the AVCHD footage to the YouTube format I edit in has to be done over many nights.
Now I am not a professional, I typically edit with up to 4 tracks of video with additional tracks for titles and my target audience is YouTube - which is why I can get away without editing in my prefered option of native AVCHD video format. However, I'm tired of all the waiting, stuttering, and many many days and hours of converting videos into a format I can use so I'm looking to upgrade. My problem is though I'm uncertain what path to take. The PPBM results are dominated by overclocked chips, and whilst the motherboard make and model is listed, the hard disks used, graphic card makes and models and memory modules are not. This is not a criticism of the PPMB tables (big thank you to Bill Gehrke & Harm Millaard for taking the time and effort to pull this much information together) but for me, I am not interested in being in the top 1000 in the world, nor overclocking like mad, and having had horror experiences of using matrox products and compatibility and stability issues with other hardware I'm more interested in compatability and practicality than speed when deciding what to build. I've also read the threads about marvel controllers, dual and quad channel memory support, the pro's and cons of SSD or standard drives, raid setups, the heat problems with overclocking the newer ivy bridge chips and general build advice etc so I'm not coming here without having done some reading first.
The type of system I'm thinking of:
So far based on what I've read here, I've come to the conclusion - but I'm open to suggestion:
- Chip - regrettably due to the cost and unlikely successor anytime soon - a 39xx (with appropriate cooler) because I want to edit in native AVCHD which seems to require the warrior type chip as opposed to the "economical" build regardless of what my target audience is and this suggests
- X79 motherboard (which must have an old PCI slot such as the Asus Sabertooth and which has room for the cooler I'm considering). As I will be carrying over my old terretec DMX 6 fire 24/96 soundcard - all my videos have their audio mastered in Audition using this card - best piece of advice I read was the audience will watch a bad video with good sound editing but not the other way round)
- 4 hard drives plus additional hard drive for operating system using onboard raid controllers (not sure whether the operating system drive will be WD caviar black or SSD and can't justify cost of external raid controller for either my type of use or number of hard drives being used)
- Video card - I can now buy a GTX 580 for less than the 670 - so not sure on the card especially based on Harm Millards observations that memory bandwith seems to be as important as CUDA cores
- Case - I have an Akasa 62 case with room for 5 hard drives - I won't be exceeding that, and if I overclock it will only be by a little so is it really necessary to replace it for a Tower Case - although I would prefer a case with a front connection for esata so I may have to change the case regardless
- Maximum memory 32G - so is it necessary to upgrade to windows 7 professional?
- Power source - I'll work out when I've decided on my components.
Help please:
For me it's video source/dictated software chosen and hardware/audience(youtube) dictates format edited in. As I don't intend to change my camcorders format (AVCHD or mpeg) in the next couple of years and I'm not interested in having the "fastest" system around what I'm really interested in learning is:
what system setups people use now for doing similar editing to me
what make/models of the component parts in your system work well together
and if you do have a bottle neck in terms of hardware, where is it and what hardware would you change to (not a dream model change, just a practical and realistic one)
I have deliberately not given a budget for the changes I'm intending because budget should not be the deciding factor in determining what I "need" to upgrade to for the "type of editing I do" - especially bearing in mind I've got by so far (admitedly at a tortoise pace) with by todays standards a standard spec laptop. Basically I don't want a Rolls Royce to go shopping at Wallmart but I'm tired of walking there and carrying everything back by hand!
Thank you very much for any help / experiences people can share.

Thank you both for your prompt and helpful replies.
Mr Millaard, regarding your excellent article Planning and Building an NLE system, I have read it a couple of times now and it was your article which finally convinced me the time was now to upgrade but within it you said for good reason "Initial choice of CPU: i7-39xx with the intention to overclock to 4.6 - 4.8 GHz", hence my uncertainty about the CPU to use. I have seen a video you posted here - I think it was based on your cats (which I incidently enjoyed) so working on the editing done there (but not remembering if you mentioned what video format you used) and others who have mentioned many pro's for the i7-39xx I was leaning towards that - but I'm financially relieved at least - if the i3770 will do, although now with the possible recommendation by JEShort01 (sorry not sure of the forum etiquette for use of names) of the 2600K overclocked I'm a little bit back in the position of which is more suitable especially with the update to the i3770 being nearer than i7-39xx. This still makes me lean towards the i7-39xx.
Regarding the editing, the match play you can see on the channel is indeed 1 camera basic edits - multiple titles used to provide the score board. However, the coaching videos use mulitple cameras - 3 to 4 sometimes (another reason for upgrading to CS5.5 for the multi cam editing support) and the equipment testing video can use 3 or 4 tracks layered on top of each other other with each track having opacity settings and multiple motion effects and titles with occasional keying video effects added. For example this video at approx 2 mins 50 and 5 mins 10 seconds.
http://www.youtube.com/watch?v=T1E5T7xo57c&list=PL577F7AB5E31FC5E9&index=13&feature=plpp_v ideo
Monitor wise I use dual monitor setup. My laptop screen and I link out to an LG M2394 D for widescreen and I sometimes use an old Neovo F-419 for 3 / 4 editing. I won't be using more monitors than 2. If the 580 drops a bit more I'll probably go for that - although I'll have to make sure it's size isn't an issue for the motherboard combo setup. Interestingly there is a thread shown on the forum home page which discusses the 570 vs the 660ti and the opinion was go with the 660ti which surprised me a bit.
Windows 7 professional it is then - I should have known that too - apologises for asking a question already asked.
"Accepted, your correct criticism of the lacking hardware info on the PPBM5 website. That is the overriding reason that for the new site http://ppbm7.com/ we want to use Piriform Speccy .xml results to gather more, more accurate and more detailed hardware info."
No criticism intended Mr Millaard - more an observation and I really look forward to that evolution with PPBM7. I'm assuming the .xml results will use pre populated drop down lists people can select their hardware from - that way you can control and ensure consistent entries - downside being the work required by you to populate the lists in the first place and maintain them.
Thanks again for your help but I'm still unsure a bit about the CPU and video card though.

Raid cards for mac pro 2.66

i would like to set up a hardware card for my os as raid 0
(2 10,000 rpm hard drives)
and a hardware raid 1 for my data.(same/separate card ??)
are there any sudgestions on makes and models and compatability?
i am aware of the software raids provided by the os, i've heard they are not as reliable and fast as the harware solution, agree, disagree???

Yeah they say the software raid is good and I can't say first hand but I have heard good reports. In general I prefer hardware RAID but i setup server not clients so. Was using acard.com stuff for a bit but there offerings have gone down on the mac side. My current card of choice is Highpoint's Rocket RAID.
http://www.highpoint-tech.com/
Card works good and drivers all appear to be up-to-date with Intel based Mac's now. Nice web-GUI to the Raid controller. My only complaint could be OS related as opposed to driver but the Hot-Swap won't work right. In order for me to swap i need to drop the drives from the server and pull them. (alarms alarms, lol) Then put my swaps in. Seems the release call from the web-GUI does not kick the drive out right or the Mac OS won't let go of them even after un-mounting.

How do I use WD Raptor for OS/Apps drive and RAID 0 for Home/Data drive

So far I have configured my machine with a WD Raptor 74GB as the startup disk, and created a RAID 0 with the Seagate 250 GB drive (shipped with the machine) and a 250GB partion of a WDC 320GB drive. All drives were zeroed and I used the install disks to load Tiger on the Raptor. I backed up to a LaCie D2 1TB external hard drive with LaCie's Silverkeeeper.
I would like to use the WD Raptor as startup/apps/scratch disk and the RAID 0 for the user folders and other data. I would then like to create a RAID 1 with the RAID 0 and a 500GB partion of the LaCie 1TB external.
I have learned however that what I would like and what I can have are not always compatible.
My questions:
Is the Silverkeeper backup sufficent, or should I have cloned my previous system?
What folders should accompany the application folder on the Raptor? So far I have only put the app folder there and nothing works. I suspect things like 'application support' should be there as well.
Is there a way to keep my home folder on the RAID 0 without using Terminal or spending too much time as the root user? I tried copying my home folder onto to the RAID 0 and putting an alias in the user account I had to create while installing the OS on the Raptor. This kind of works but is not a particularly elegant solution.
I would appreciate any advice on how to proceed or if the proposed configuration is even achievable.

Photoshop files of 1GB+ can eat up memory and scratch. And the more drives for scratch, the better.
Some of the limitations are with the bus, bandwidth, and 'swapping' code in and out of different cores that is inefficient.
Compilers can do some, but from the time new hardware (8 cores) to seeing improvements to compiler, and out to software (applications) and OS, can take a year or more but provide in the neighborhood sometimes of 40%. In which time, newer designs will change the equation. Caching and VM will improve with Leopard, but beyond that...?
So... back to "read world" IF you are in the habit of working with 1-2GB images, then a pair of Raptors for boot is helpful, AND 8GB and more of RAM, AND 4-8 drives for scratch. (Think of those Sonnet Port Multiplier controllers and Fusion 500 style case for 5 drives on one port).
If you work with files smaller than 500MB range, your needs are cut way down.
150GB Raptor boot drive. Small. subtract 25% for minimum free space, 140GB formatted, kind of tight for some. But it handles 60% well.
The outer 30% of 465GB (RE2) is also fast and good performance. I partition large boot drives to keep the OS and apps contained in the outer 1/3.
Mac Pro Memory Usage and Performance
If your work flow means doing more than one thing at a time on your Mac Pro, then you will see significant gains if you spend extra to get the 8-core version. Our Photoshop CS3 actions were completed 39% faster on the 8-core when we had 3 other apps busy crunching. This advantage emerges in spite of the memory bus limitations of the 8-core Mac Pro.
http://www.barefeats.com/octopro3.html
CS3: Justifying 8-Cores
http://www.barefeats.com/octopro4.html
Pshop Test G5 Quad 16GB Raptor RAID
Photoshop and multi-core
http://blogs.adobe.com/scottbyer/
Mac Pro 2GHz 4GB 10K Raptor 23" Cinema Mac OS X (10.4.9) WD RE RAID Aaxeon FW800 PCIe MDD-G4 APC RS1500 Vista

Disk configuration and workflow help needed for lab video workstation

Hi All,
Setting up a video editing workstation for a research lab that will use Premeire to edit AVCHD Progressive clips (sometimes with 2 streams side-by-side, but usually single-camera) and export them to .mp4 for later viewing by video coders. We won't be using AfterEffects or adding anything to the videos other than some text (titles, maybe sub-titles).
The other purpose of this workstation is to act as a file server and backup system for other machines in the lab. Coders will be viewing the exported videos via other networked machines and working with Microsoft Office files that will be stored on the workstation's other HDDs. I'll have a physical backup drive and cloud backup via CrashPlan.
I've built a machine that is probably overkill, but the client (my wife) wanted it to be "fast," and the purpose of the machine might change in the future:
i7-4770K (overclocked a bit)
16GB RAM
Asus Z87-Pro
GeForce GTX 660
I have the OS (W7) and programs on a 256 GB Samsung 840 Pro SSD and currently have two 1TB Velociraptors to use for the Premiere workflow. I'm trying to figure out how to proceed with the purchase of the rest of the drives, and I want to keep the Premiere drives separate from the large storage drives from the lab that are networked and synced to cloud backup.
Following the recommendations for a three-disc configuration I've picked up on these forums, I could set it up like this:
C: (256GB SSD) (OS, programs, pagefile)
D: (1TB HDD) (media, projects)
E: (1TB HDD) (previews, media cache, exports)
F: (4TB HDD) (backups of media, projects, and exports and storage of other research files)*THIS DRIVE WOULD BE SHARED ON THE NETWORK
G: (4TB external HDD) (backup of F & drive that backs up to CrashPlan)
but it seems that would be a waste of the speed of the second 10k velociraptor. If I added another SSD and RAIDed the Velociraptors it would be:
C: (256GB SSD) (OS, programs)
D: (Two 1TB Velociraptors in RAID 0) (media, projects)
E: (256GB SSD) (media cache, pagefile)
but would I then need to add another dedicated HDD for previews and exports, or could I store those on the networked F: from above (which would be previews, exports, backups of media and projects, and storage of other research files) without taking a speed hit?
It seems overkill to have a dedicated drive for exports and previews (let's make that the new F:), then have them copy to the first 4TB drive (now G:), then back that up to the second 4TB drive (now H:), then back that up to CrashPlan. However, people might be accessing that network drive at any time, and I don't want that to slow any part of the video process down.
I appreciate any advice ya'll can give me!

Hi Jim,
Thanks for the encouraging response. I'm leaning toward the non-SSD option at this point.
To make sure I understand, are you suggesting I try using the Velociraptor Raid 0 in the 2 disk configuration suggested by Harm's Guidelines for Disk Usage chart? Like this:
C: (256 GB SSD) (OS, Programs, Pagefile, Media Cache)
D: (1TB x2 in RAID 0) (Media, Projects, Previews, Exports)?
Where I'm still confused there, and in looking at Harm's array suggestions for 5 or more drives, is how performance is affected by having simultaneous read/write operations happening on the same drive, which is what I understood was the reason for spreading out the files on multiple drives. Maybe I don't understand how Premiere's file operations work in practice, or maybe I don't understand RAID 0 well enough.
In the type of editing we'll be doing (minimal) aren't there still times when Premiere will be trying to read and write from the D: drive at the same time, for example during export? Wouldn't the increased speed benefits of RAID 0 for either read or write alone be defeated by asking the array to do both simultaneously?
Maybe the reason the Media Cache is on the SSD in the above configuration is because that is what will be read while writing to something like Exports? But that wouldn't make sense given Harm's chart, which has the Media Cache also located on the array....
Another question is, given that the final home of the exported videos will be on the big internal drive (4TB) anyway, could I set it up like this:
C: (SSD) (OS, Programs, Pagefile, Media Cache)
D: (2TB RAID 0) (Media, Projects, Previews)
E: (network shared 4TB HDD) (Exports + a bunch of other shared non-video files)
so I don't end up having to copy the exported videos over to the 4TB drive? Do you think it would render significantly faster to the RAID than it would to the 7200 rpm 4TB drive? I'd like to cut out the step of copying exported videos from D: to E: all the time if it wasn't necessary.
Thanks again.

Need for multiple ASM disk groups on a SAN with RAID5??

Hello all,
I've successfully installed clusterware, and ASM on a 5 node system. I'm trying to use asmca (11Gr2 on RHEL5)....to configure the disk groups.
I have a SAN, which actually was previously used for a 10G ASM RAC setup...so, reusing the candidate volumes that ASM has found.
I had noticed on the previous incarnation....that several disk groups had been created, for example:
ASMCMD> ls
DATADG/
INDEXDG/
LOGDG1/
LOGDG2/
LOGDG3/
LOGDG4/
RECOVERYDG/
Now....this is all on a SAN....which basically has two pools of drives set up each in a RAID5 configuration. Pool 1 contains ASM volumes named ASM1 - ASM32. Each of these logical volumes is about 65 GB.
Pool #2...has ASM33 - ASM48 volumes....each of which is about 16GB in size.
I used ASM33 from pool#2...by itself to contain my cluster voting disk and OCR.
My question is....with this type setup...would doing so many disk groups as listed above really do any good for performance? I was thinking with all of this on a SAN, which logical volumes on top of a couple sets of RAID5 disks...the divisions on the disk group level with external redundancy would do anything?
I was thinking of starting with about half of the ASM1-ASM31 'disks'...to create one large DATADG disk group, which would house all of the database instances data, indexes....etc. I'd keep the remaining large candidate disks as needed for later growth.
I was going to start with the pool of the smaller disks (except the 1 already dedicated to cluster needs) to basically serve as a decently sized RECOVERYDG...to house logs, flashback area...etc. It appears this pool is separate from pool #1...so, possibly some speed benefits there.
But really...is there any need to separate the diskgroups, based on a SAN with two pools of RAID5 logical volumes?
If so, can someone give me some ideas why...links on this info...etc.
Thank you in advance,
cayenne

The best practice is to use 2 disk groups, one for data and the other for the flash/fast recovery area. There really is no need to have a disk group for each type of file, in fact the more disks in a disk group (to a point I've seen) the better for performance and space management. However, there are times when multiple disk groups are appropriate (not saying this is one of them only FYI), such as backup/recovery and life cycle management. Typically you will still get benefit from double stripping, i.e. having a SAN with RAID groups presenting multiple LUNs to ASM, and then having ASM use those LUNs in disk groups. I saw this in my own testing. Start off with a minimum of 4 LUNs per disk group, and add in pairs as this will provide optimal performance (at least it did in my testing). You should also have a set of standard LUN sizes to present to ASM so things are consistent across your enterprise, the sizing is typically done based on your database size. For example:
300GB LUN: database > 10TB
150GB LUN: database 1TB to 10 TB
50GB LUN: database < 1TB
As databases grow beyond the threshold the larger LUNs are swapped in and the previous ones are swapped out. With thin provisioning it is a little different since you only need to resize the ASM LUNs. I'd also recommend having at least 2 of each standard sized LUNs ready to go in case you need space in an emergency. Even with capacity management you never know when something just consumes space too quickly.
ASM is all about space savings, performance, and management :-).
Hope this helps.

3rd Party SATA raid cards for internal drives?

All --
Apart from the discussion as to if RAID actually benefits a home desktop system, I am wondering if anyone has the lowdown on using 3rd party SATA raid cards to support the INTERNAL hard drives on the Mac Pro series?
My Mac Pro is still slated to be built at Apple and for now I have the minimum memory and HD spec being requested at Apple, with the plan to upgrade the memory and drives from OWC or another vendor.
I've toyed with the idea of utilizing Disk Utility's software RAID features (e.g. RAID 0 for scratch disks, RAID 1 for boot, RAID 0+1 for all else.) I've also toyed with the notion of searching for a hardware raid solution which would allow me to transfer the internal SATA cable runs from the motherboard to a host adapter card for an internal multi-channel experience (with options to create and break mirrors to external devices for backup purposes.)
So....
Has anyone experience or utilized 3rd party hardware raid controllers which can connect to the internal HD bays? Are there limitations to this (ie, does the boot drive HAVE to reside off the internal motherboard controllers, or can an internal hardware controller successfully boot the system) of which ought be noted?
Finally, in the event that a host adapter card cannot drive the interna bays, can anyone give feedback to hardware SATA cards to power external drive bays with support for Disk Utility (to allow RAID1 pairings of internal drives to external snapshot-backup drives)?
Thanks for your time,
Ian Poulin
Richmond, Va

I am wondering if anyone has the lowdown on using 3rd party SATA raid cards to support the INTERNAL hard drives on the Mac Pro series?
There are many 3rd party controllers that support the internal HDs if an internal iPass connector is used. The problem is that some are bootable but most are not.
The Areca ARC-1680ix-12 and the HighPoint RocketRAID 4320 are bootable. However, the system cannot be installed via the Apple DVD. Instead the user needs to clone a boot drive with the proper drivers to the boot volume on the controller and then boot from the 3rd party controller.
The other issue I found is that these controllers do not support Boot Camp. If Boot Camp is desired, my recommendation would be to leave the internal HDs on the Mac Pro internal bus intact and use the 3rd party controller for external storage. This method provides four internal bays that are bootable, support Boot Camp and can be used for system backups. I use the 3rd party controller for external storage for large RAID sets and hot swapping hard disks.
With the internal bays intact and external hot swap RAID storage available the user can support Boot Camp, multiple system volumes and large external RAID sets. From my experience using a 3rd party controller with the internal HD bays always has some limitations. The user usually does not realize it unit later when Boot Camp does not work or the computer fails on a system upgrade or the controller does not work at all with a new version of Mac OS X.
Staying with the standard internal Mac Pro bay configuration will be the best configuration to avoid compatibility issues with future versions of Mac OS X. It is rumored that the new Snow Leopard may require 64-bit drivers. If that is the case, I would expect most if not all existing 3rd party controller drivers to fail. Some drivers will be upgraded after a few months while others may not. Having the internal Mac Pro SATA controller intact should at least allow the Mac Pro to boot if my guess about compatibility issues is correct.
can anyone give feedback to hardware SATA cards to power external drive bays with support for Disk Utility (to allow RAID1 pairings of internal drives to external snapshot-backup drives)?
There are a large number of external controllers that work with Disk Utility. Here are some of my favorites.
1. FirmTek SeriTek/2SE2-E and the SeriTek/5PM
http://firmtek.stores.yahoo.net/sata5pm2se2.html
http://www.amug.org/amug-web/html/amug/reviews/articles/firmtek/5pm/
2. Sonnet Tempo E4P
http://www.amug.org/amug-web/html/amug/reviews/articles/sonnet/mac-pro/
3. DAT Optic eSATA_PCIe8
http://www.amug.org/amug-web/html/amug/reviews/articles/datoptic/pcie8/
Have fun!

RAID Configurations for Cisco servers

Hi All,
What is the RAID configuration for Cisco Appliance(Version 8.5) like CUCM, CUPS, CUIC, Unity etc?RAID Configuration will be done while installtion itself or we need to do it explicitly?
Regards,
Adithya

Hi Geoff,
Thanks for the reply. Just wanted to know whether if this RAID configuartion is similar to the other server RAID where we install Cisco applications.(Like OS & Application Software is RAID 1 and Database is RAID10).
Regards,
Adithya

Creating the best RAID setup for my MacPro using FCP

I have a MacPro, 2 x 3GHz Dual Core, 16GB ram, 4 x 500GB drives and I work in FCP 5.1.4 and with my Hardware setup I feel it should be faster and I've been wanting to set up a RAID but not sure how to do it, or the best way way to do it.
Out of the 4 drives I have, Drive one is my main drive (boot drive, apps etc.) Drives (2 & 3) which is a TB combined, I'd like to turn those into a RAID) to speed up rendering, editing etc. In FCP and Motion. Drive 4 is where I keep all my working files.
My files are backed up regularly onto external harddrives and kept offsite.
Can I leave everything I have on my entire system the way it is and just turn Drives 2 & 3 into a RAID that's best for this application? People who work in VIDEO I know do this all the time to speed things up but I can't find the steps for the best way to do this. Bits and pieces all over the place but I can't put this puzzle together.
Can you point me in the direction in how to do this?
As I'm doing this is there anything I should be careful about?
Please help me understand this process.
Just in case you need to know what kind of drives I have here's the info:
Capacity: 465.76 GB
Model: ST3500641AS P
Revision: 3.BTA
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk1
Bay Name: "Bay 1"
OS9 Drivers: No
S.M.A.R.T. status: Verified
Volumes:
Startup Drive:
Capacity: 465.44 GB
Available: 367.86 GB
Writable: Yes
File System: Journaled HFS+
BSD Name: disk1s2
Mount Point: /

My advice would be 'yes' to what you are saying... with the exception of the Softraid stuff - not that I think its wrong, but I've never used it, so I can't comment if you need it or whether the Mac OSX raid is sufficient - but others here say they prefer it so fair enough. You can see some comparisons here http://www.amug.org/amug-web/html/amug/reviews/articles/softraid/351/
amug always have indepth benchmarks of stuff.
I wouldnt call myself an FCP guru, but I think that your suggestion of putting the FCP scratch disk and client, video files on the raid are the best idea. The scratch folder is essentially where the temp-rendered clips go, so its audio and video - you want that folder to be on a really fast volume. You also want your source video files to be on a really fast volume, so they can be streamed fast enough to play in realtime too when playing unrendered areas, or building a preview.
Some might say in FCP you get bast performance when your scratch disks and video files are on seperate disks. Thats totally true, so it can read from one disk and write to the other at the same time. But in your case you have a 3disk stripe, which is roughly 3x faster than either of your disks! So it would still be faster to have them all on the same stripe.
You can leave your FCP app on the sys drive, keeps things cleaner (drive1 for sys and appsm raid for data). You can keep your project files where ever you want, they're not very big and are kept in memory so dont affect performance at all. Though to stay clean I would keep it on the raid, so again the raid is for data, and you can back it up accordingly. The system drive is only for apps and system so you can back that up accordingly too (less frequently probably).
P.S. Technically your 'point 8' is inaccurate. After creating the raid you will not see drives 2,3 or 4. You will see only one 'volume' for all 3 drives. Overall your mac will have 2 'volumes': the system drive, and the stripe of 2,3,4. Physical drives and 'volumes' that mount in your OS are completely seperate. You can create multiple partitions in a single drive, or you can combine multiple drives into a single volume (e.g. using raid). But basically yes, you copy your client files back to the raid.
And remember, if any ONE of the disks in the stripe dies, you lose ALL of the data on the entire 1.5TB volume. So it is pretty important to backup regularly!!!!
(I dont wanna confuse you any more, but raid5 is a good option if you want more security and don't mind paying extra :P, you'll need more hardware for that, and more drives to make it worthwhile - but I would say skip that for now, as you can build your raid0 for free or almost free and use that until you think you need more)

Best Raid Configuration for a 8-1tb hhd server

Hi All,
I have been trying to figure out what would be the best raid configuration for my Windows 2012 essentials server. So I was wondering if I could get some advise on this. Here is what I would like to get out of this configuration.
I would like to split the 8-1tb drives into 2 VHD one with about 300gb for the OS to be installed on, and the rest to be use for storage. I want like to have good redundancy, fairly good read & write capabilities.
I will be using this server for a Small Web Page and Game Hosting, Email Exchange, Critical Application hosting.
I would like the ability to enlarge the overall raid storage by swapping out my 1Tb drives with 2Tb or larger as the need for more storage arises.
Any help would be greatly appreciated,
Thanks

You may be better of using Storage spaces and not using raid at all.
Robert Pearman SBS MVP
itauthority.co.uk |
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Raid Drivers for Linux - Qosmio F30-111

Good morning
I have a Qosmio F30-111 and i need the drivers for the Raid controller for Linux. Can anyone help me.
I have RAID-0 and the notebook doesn't boot. It shows the logo of XP and them reboots. So i need to boot from cd or pendrive to acess or repair the raid partition.
Thank you
Antonio Jose

Sorry to say but I don't have more knowledge about this matter.
So can you help me !!!!
Means give me some information about this product.
I will gonna very happy if you Help Me!!!
Thanks in advance

Is raid needed for 720p DVCPro HD

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