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SATA Raid Question
Just a curious question from someone who is completely untutored in Raid
setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
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#2
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SATA Raid Question
You need the RAID controller to support more than 2 SATA drives if 3 hds
are what you have planned,the board might have 4 plug ins for SATA but they each have thier seperate controller and arent configurable together in a RAID configuration.Plus,if you do have more than 2 plugs on the same controller (server board),they usually run RAID 5.To get back to youre set up,you dont decide where anything goes per RAID hd,you just configure the 2 drives,and install xp, only one drive is viewable in xp.Read the owners manual,take a look at: http://support.intel.com/support/mot.../CS-010695.htm "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
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SATA Raid Question
What is SATA? [Webopedia dot Com is a great source of computer
definitions.] SATA is an enhancement of the ATA standard: Source: http://www.webopedia.com/TERM/A/ATA.html ATA: Short for Advanced Technology Attachment, a disk drive implementation that integrates the controller on the disk drive itself. There are several versions of ATA, all developed by the Small Form Factor (SFF) Committee: ATA: Known also as IDE, supports one or two hard drives, a 16-bit interface and PIO modes 0, 1 and 2. ATA-2: Supports faster PIO modes (3 and 4) and multiword DMA modes (1 and 2). Also supports logical block addressing (LBA) and block transfers. ATA-2 is marketed as Fast ATA and Enhanced IDE (EIDE). ATA-3: Minor revision to ATA-2. Ultra-ATA: Also called Ultra-DMA, ATA-33, and DMA-33, supports multiword DMA mode 3 running at 33 MBps. ATA/66: A version of ATA proposed by Quantum Corporation, and supported by Intel, that doubles ATA's throughput to 66 MBps. ATA/100: An updated version of ATA/66 that increases data transfer rates to 100 MBps. ATA also is called Parallel ATA. Contrast with Serial ATA. Source: http://www.webopedia.com/TERM/S/Serial_ATA.html Often abbreviated SATA or S-ATA, an evolution of the Parallel ATA physical storage interface. Serial ATA is a serial link -- a single cable with a minimum of four wires creates a point-to-point connection between devices. Transfer rates for Serial ATA begin at 150MBps. One of the main design advantages of Serial ATA is that the thinner serial cables facilitate more efficient airflow inside a form factor and also allow for smaller chassis designs. In contrast, IDE cables used in parallel ATA systems are bulkier than Serial ATA cables and can only extend to 40cm long, while Serial ATA cables can extend up to one meter. Serial ATA supports all ATA and ATAPI devices. What is RAID? Source: http://www.webopedia.com/TERM/R/RAID.html (rad) Short for Redundant Array of Independent (or Inexpensive) Disks, a category of disk drives that employ two or more drives in combination for fault tolerance and performance. RAID disk drives are used frequently on servers but aren't generally necessary for personal computers. There are number of different RAID levels: Source: http://www.webopedia.com/TERM/R/RAID.html Level 0 -- Striped Disk Array without Fault Tolerance: Provides data striping (spreading out blocks of each file across multiple disk drives) but no redundancy. This improves performance but does not deliver fault tolerance. If one drive fails then all data in the array is lost. Level 1 -- Mirroring and Duplexing: Provides disk mirroring. Level 1 provides twice the read transaction rate of single disks and the same write transaction rate as single disks. Since all files are exactly the same on both disks (mirroring), if any single disk fails, all data is intact on the other drive. One need merely replace the failed disk with a new disk, rebuild the array [copy all data from the good disk to the new disk], and one is back in business. Level 5 -- Block Interleaved Distributed Parity: Provides data striping at the byte level and also stripe error correction information. This results in excellent performance and good fault tolerance. Level 5 is one of the most popular implementations of RAID. Steve "Lawrence E. Oliver" wrote in message ... Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
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SATA Raid Question
You should rethink using RAID 1. All a RAID 1 will protect you from is a
failed hard drive. You won't be protected against viruses or anything wich corrupts data except a failed hard drive. You will still need a complete backup. RAID 1 is really meant for companies who can't afford any downtime that a failed hard drive would bring. If there are any problems they just switch to the alternate hard drive. I use RAID 0 and have a backup. That way I get the speed boost and am protected against failure. Read and understand exactely what a RAID 1 will give you before going ahead. I don't think thery are worth the expense for home users. A proper backup gives you compleate protection whereas a RAID 1 only protects against failed hard drive, think about it. If you don't mind me asking why are you thinking about RAID 1. -- Please repost if you find the fault Glen P ~~~~~~~~~~~~~~~~~~~~ "Lawrence E. Oliver" wrote in message ... Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
#5
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SATA Raid Question
My Intel D975XBX motherboard has two raid controllers on it - (1) Intel
Controller controls SATA port 0 through 3 and (2) Silicon Image SATALink controller for SATA ports 4 through 7. Both can handle RAID 0, 1, 5, or 10. I will have three SATA drives - only port 1 & 2 will be combined into RAID 1 configuration - the OS will be on the first disk at port 0. The RAID Controllers do not have to have all drives on it in a RAID so the first disk on port 0 can be a single standing drive and only the other two will be in the RAID 1. My gut feeling is that all the programs & the OS should be on the first disk since the registry is on the first disk and if the first disk dies (not in raid so no backup) then the registry is gone and the programs would have to be reinstalled anyway. However, I just wondered if someone had some other suggestion. So far, no one has really answered my question. Larry "Andrew E." wrote in message ... You need the RAID controller to support more than 2 SATA drives if 3 hds are what you have planned,the board might have 4 plug ins for SATA but they each have thier seperate controller and arent configurable together in a RAID configuration.Plus,if you do have more than 2 plugs on the same controller (server board),they usually run RAID 5.To get back to youre set up,you dont decide where anything goes per RAID hd,you just configure the 2 drives,and install xp, only one drive is viewable in xp.Read the owners manual,take a look at: http://support.intel.com/support/mot.../CS-010695.htm "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
#6
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SATA Raid Question
Your questions have been answered in the way each person sees fit. As to
where you install programs that is really up to you. It makes no real difference to Windows where you install the programs. I ask again why are you thinking about RAID 1? You say your operating system will be on the first non RAID disk and you are thinking of putting programs on there as well. Why on earth have a RAID 1 at all. I can see no logical reason for it whatsoever with your contemplated setup (apart from hard drive failure of one drive in the RAID). What would it give you that a backup wouldn't apart from all the lost hard drive space. -- Please repost if you find the fault Glen P ~~~~~~~~~~~~~~~~~~~~ "Lawrence E. Oliver" wrote in message ... My Intel D975XBX motherboard has two raid controllers on it - (1) Intel Controller controls SATA port 0 through 3 and (2) Silicon Image SATALink controller for SATA ports 4 through 7. Both can handle RAID 0, 1, 5, or 10. I will have three SATA drives - only port 1 & 2 will be combined into RAID 1 configuration - the OS will be on the first disk at port 0. The RAID Controllers do not have to have all drives on it in a RAID so the first disk on port 0 can be a single standing drive and only the other two will be in the RAID 1. My gut feeling is that all the programs & the OS should be on the first disk since the registry is on the first disk and if the first disk dies (not in raid so no backup) then the registry is gone and the programs would have to be reinstalled anyway. However, I just wondered if someone had some other suggestion. So far, no one has really answered my question. Larry "Andrew E." wrote in message ... You need the RAID controller to support more than 2 SATA drives if 3 hds are what you have planned,the board might have 4 plug ins for SATA but they each have thier seperate controller and arent configurable together in a RAID configuration.Plus,if you do have more than 2 plugs on the same controller (server board),they usually run RAID 5.To get back to youre set up,you dont decide where anything goes per RAID hd,you just configure the 2 drives,and install xp, only one drive is viewable in xp.Read the owners manual,take a look at: http://support.intel.com/support/mot.../CS-010695.htm "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
#7
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SATA Raid Question
I realize the requirement for backups & protection for AV, spyware,
firewall, etc. However, I run several databases, websites & do graphics work which need to be always available to me - with the low price of disks, a RAID 1 does all this along with the ease of continued operations. My backup is kept on a file server on my network. I understand what RAID 0 & RAID 1 are and the advantages of each and have considered whether or not I even want a RAID - I have chosen to go with RAID 1 for data. Larry "Glen" wrote in message ... You should rethink using RAID 1. All a RAID 1 will protect you from is a failed hard drive. You won't be protected against viruses or anything wich corrupts data except a failed hard drive. You will still need a complete backup. RAID 1 is really meant for companies who can't afford any downtime that a failed hard drive would bring. If there are any problems they just switch to the alternate hard drive. I use RAID 0 and have a backup. That way I get the speed boost and am protected against failure. Read and understand exactely what a RAID 1 will give you before going ahead. I don't think thery are worth the expense for home users. A proper backup gives you compleate protection whereas a RAID 1 only protects against failed hard drive, think about it. If you don't mind me asking why are you thinking about RAID 1. -- Please repost if you find the fault Glen P ~~~~~~~~~~~~~~~~~~~~ "Lawrence E. Oliver" wrote in message ... Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
#8
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SATA Raid Question
See my answer to your other post.
Larry "Glen" wrote in message ... Your questions have been answered in the way each person sees fit. As to where you install programs that is really up to you. It makes no real difference to Windows where you install the programs. I ask again why are you thinking about RAID 1? You say your operating system will be on the first non RAID disk and you are thinking of putting programs on there as well. Why on earth have a RAID 1 at all. I can see no logical reason for it whatsoever with your contemplated setup (apart from hard drive failure of one drive in the RAID). What would it give you that a backup wouldn't apart from all the lost hard drive space. -- Please repost if you find the fault Glen P ~~~~~~~~~~~~~~~~~~~~ "Lawrence E. Oliver" wrote in message ... My Intel D975XBX motherboard has two raid controllers on it - (1) Intel Controller controls SATA port 0 through 3 and (2) Silicon Image SATALink controller for SATA ports 4 through 7. Both can handle RAID 0, 1, 5, or 10. I will have three SATA drives - only port 1 & 2 will be combined into RAID 1 configuration - the OS will be on the first disk at port 0. The RAID Controllers do not have to have all drives on it in a RAID so the first disk on port 0 can be a single standing drive and only the other two will be in the RAID 1. My gut feeling is that all the programs & the OS should be on the first disk since the registry is on the first disk and if the first disk dies (not in raid so no backup) then the registry is gone and the programs would have to be reinstalled anyway. However, I just wondered if someone had some other suggestion. So far, no one has really answered my question. Larry "Andrew E." wrote in message ... You need the RAID controller to support more than 2 SATA drives if 3 hds are what you have planned,the board might have 4 plug ins for SATA but they each have thier seperate controller and arent configurable together in a RAID configuration.Plus,if you do have more than 2 plugs on the same controller (server board),they usually run RAID 5.To get back to youre set up,you dont decide where anything goes per RAID hd,you just configure the 2 drives,and install xp, only one drive is viewable in xp.Read the owners manual,take a look at: http://support.intel.com/support/mot.../CS-010695.htm "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
#9
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SATA Raid Question
On Fri, 24 Feb 2006 08:03:51 -0600, Lawrence E. Oliver wrote:
My gut feeling is that all the programs & the OS should be on the first disk since the registry is on the first disk and if the first disk dies (not in raid so no backup) then the registry is gone and the programs would have to be reinstalled anyway. However, I just wondered if someone had some other suggestion. I install Windows on C: and programs on another drive. I also create images of my Windows partition which includes the Windows registry files. Most recovery situations are accomplished using an image. Since the image includes the registry files, it knows about the applications on the other drive without having to reinstall programs. If, on the other hand, recovery with an image wasn't practical, then I would have to reinstall programs as well as a clean install of Windows. The location of the programs isn't the issue with using images. The size of the image - whether it will fit on a single DVD or not. The reason that I don't install programs to the same partition as Windows is that I'm lazy. A single disk recovery strategy is easy to maintain. Easy to fit in (a few minutes a week). Multiple disks is more work, more cost in media and time. Not as likely to get done on a regular basis. The program partition gets imaged now and then but not as frequently as the Windows partition. Data is backed up regularly instead of imaged. No idea why. Old habits, I guess. -- Sharon F MS-MVP ~ Windows Shell/User |
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SATA Raid Question
On Fri, 24 Feb 2006 08:03:51 -0600, Lawrence E. Oliver wrote:
So far, no one has really answered my question. I guess I really didn't answer it either. I have a RAID controller on my system but use it in IDE mode for additional basic disks. -- Sharon F MS-MVP ~ Windows Shell/User |
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SATA Raid Question
If it was me, I would opt for the raid 5. This allows hot swapping of a bad
drive and will rebuild the drive after replacement. This is, of course, dependent on if it is a hardware raid. "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
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SATA Raid Question
Thank you Sharon - actually your previous post in which you discussed why
you chose a specific place was exactly what I wanted to see - now I have something to think about. Larry "Sharon F" wrote in message ... On Fri, 24 Feb 2006 08:03:51 -0600, Lawrence E. Oliver wrote: So far, no one has really answered my question. I guess I really didn't answer it either. I have a RAID controller on my system but use it in IDE mode for additional basic disks. -- Sharon F MS-MVP ~ Windows Shell/User |
#13
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SATA Raid Question
Thanks for the thought - it is a hardware RAID, unfortunately, the first is
a 74GB drive while the other two are 250GB drives. Larry "tfw48079" wrote in message ... If it was me, I would opt for the raid 5. This allows hot swapping of a bad drive and will rebuild the drive after replacement. This is, of course, dependent on if it is a hardware raid. "Lawrence E. Oliver" wrote: Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry |
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SATA Raid Question
On Fri, 24 Feb 2006 16:32:19 -0600, Lawrence E. Oliver wrote:
Thank you Sharon - actually your previous post in which you discussed why you chose a specific place was exactly what I wanted to see - now I have something to think about. You're welcome, Lawrence. -- Sharon F MS-MVP ~ Windows Shell/User |
#15
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SATA Raid Question
Lawrence E. Oliver wrote:
Just a curious question from someone who is completely untutored in Raid setup. I am building a new Intel mobo system with integrated hardware raid. I intend to use three disks - 1st for "operating system" & 2nd & 3rd for a Raid1 setup for "data". Where do you recommend the installation of "programs" - 1st or 2nd/3rd? Larry With the Intel motherboard Raid setup you can build your system without a Raid array then you can migrate any disk to a two disk Raid 0 or 1. (You install the additional disk then use the Intel software included with your motherboard to do the setup). Note however that you MUST configure the BIOS to be RAID ready when you install the OS whether you make the RAID during installation or use the migration software later. As to your original question: If you are going to use a RAID 1 configuration, place your most valuable assets on it. You don't want to have the swap file and replaceable binary programs there since they don't need premium protection. In spite of what some people will tell you, RAID 0 setups are okay - disks are dirt cheap. You should still do regular backups even if you have a sexy RAID installation - simultaneous hardware failure, viruses, etc. -- Jeff Barnett |
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