Results 1 to 7 of 7

Thread: Confused about RAID

  1. #1
    Senior Member
    Join Date
    Nov 2006
    Location
    London
    Posts
    433
    Thanks
    17
    Thanked
    0 times in 0 posts
    • timtim86's system
      • Motherboard:
      • Shuttle
      • CPU:
      • Athlon X2 5000+
      • Memory:
      • 6GB OCZ Gold 6400
      • Storage:
      • 2 x 250GB Seagates, 1 x 750GB Samsung
      • Graphics card(s):
      • 8800GS 384MB
      • PSU:
      • Shuttle 400W
      • Case:
      • Shuttle SN27P2
      • Operating System:
      • Windows 7 Pro
      • Monitor(s):
      • Dell 2007WFP

    Confused about RAID

    Hello people,

    At the minute i have a 250gb seagate that i use as my data drive, and a 120gb seagate that I use as the system disk. My parents need a new HDD, so i was going to give them the 120gb Seagate and buy myself another 250gb seagate. My questions is - I have all my media on the bigger drive, so i don't lose anything if i have to reinstall, so is there any way of doing this with RAID? And, be honest, would RAID make any difference to me at all? I'd really like to not lose all my videos just cos i have to reinstall windows!

    Sorry if i sound stupid,

    Tim

  2. #2
    Lovely chap dangel's Avatar
    Join Date
    Aug 2005
    Location
    Cambridge, UK
    Posts
    8,385
    Thanks
    407
    Thanked
    449 times in 331 posts
    • dangel's system
      • Motherboard:
      • See My Sig
      • CPU:
      • See My Sig
      • Memory:
      • See My Sig
      • Storage:
      • See My Sig
      • Graphics card(s):
      • See My Sig
      • PSU:
      • See My Sig
      • Case:
      • See My Sig
      • Operating System:
      • Windows 10
      • Monitor(s):
      • See My Sig
      • Internet:
      • 60mbit Sky LLU
    If you're thinking of striping (where both drives are seen as one big drive) then no, you can't keep the data on the drive as when you create the new RAID set it'll effectively wax all the data. You'll also need to reinstall Windows and feed it RAID driver (the F6 floppy disk method/or slipstreamed drivers onto the installation CD). Striped RAID is much faster than a single drive for me with an XP installation taking less than 10 minutes. This is known as RAID 0.

    If you're setting up a mirrored RAID (where one drive contains a clone of the other) then I suspect the same is true - that creating the RAID set wipes drive (in effect not physically). In this case you gain redundancy (i.e. if one drive fails your data is still there) but not any performance.

    Is RAID worth it? Yup, 100% recommend striping - I wouldn't go back. It is worth backing up your important data (regardless of RAID) as a drive failure will mean everything is gone.
    System 001: Maximus VII Formula, 4790k i7, RTX 2080ti FE (incoming), 16GIG Corsair Vengence DDR3 RAM CL9, Corsair HX1000, ROG SWIFT PG278Q , SSDs, Antec 1200 case, All watercooled. [main]
    System 002: A8 3850 APU, ASUS uATX FM1A75 MB, 4GB Corsair Vengeance DDR3, Corsair psu, OCZ Agility 3, 1TB F3, Dell 2001FP 20" LCD, £7's worth of 5.1 speakers (they rock) Windows 7 x64[wife/server]
    System 003: AsRock MB, APU, 8 GIG Corsair, Silverstone HTPC case, stock cooler, GT220 1gbDDR3, WD Green 3TB, Kingston 40gb SSD, MCE Remote, Panasonic 50" LCD (87BDX) via HDMI Windows 8.1.1 (32) [media centre]
    System 004: Asus UL50AT Intel Core 2 Duo,4GB, Intel Gen 2 80GB SSD, Win 8.1.1 x64 [no justification]
    System 005: HP Proliant N40L Microserver, 4x2TB drives, fan mod, Pico PSU mod, Win7 x86 [file server]
    System 006: Dell Optiplex 9010, i7, 8gb, 128gb Samsung 830 x 2 (boot and VM drive), 1TB WD HDD, ATI something, Windows 8.1.1 x64 RTM [work]


  3. #3
    Senior Member
    Join Date
    Nov 2006
    Location
    London
    Posts
    433
    Thanks
    17
    Thanked
    0 times in 0 posts
    • timtim86's system
      • Motherboard:
      • Shuttle
      • CPU:
      • Athlon X2 5000+
      • Memory:
      • 6GB OCZ Gold 6400
      • Storage:
      • 2 x 250GB Seagates, 1 x 750GB Samsung
      • Graphics card(s):
      • 8800GS 384MB
      • PSU:
      • Shuttle 400W
      • Case:
      • Shuttle SN27P2
      • Operating System:
      • Windows 7 Pro
      • Monitor(s):
      • Dell 2007WFP
    That was a very informative post, thank you. Didn't realise that creating a RAID setup would wipe all the data. How would you go about backing up 100gigs of data? What about partitioning, how does that affect RAID?

  4. #4
    Senior Member kalniel's Avatar
    Join Date
    Aug 2005
    Posts
    29,091
    Thanks
    1,496
    Thanked
    2,919 times in 2,366 posts
    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
      • 12gb DDR3 2000
      • Graphics card(s):
      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
      • Monitor(s):
      • Dell U2311H
      • Internet:
      • O2 8mbps
    Quote Originally Posted by timtim86 View Post
    That was a very informative post, thank you. Didn't realise that creating a RAID setup would wipe all the data. How would you go about backing up 100gigs of data? What about partitioning, how does that affect RAID?
    You back up 100gigs of data by deciding what you absolutely can't replace and just backing that up. 100 gigs is a lot! Or buy another hard disk for backups

    Partitioning is a layer that goes on top of the volume layer (which is the layer that RAID works at). You sort out your volumes first, which is usually what people associate with physical disks, and then partition within the volume. With RAID you are effectively merging two or more volumes, so your computer will only see it as one volume, which can then be partitioned.

    So the direct answer is partitioning doesn't affect RAID - RAID completely ignores it and works with whole physical disks, fancy matrix solutions aside

  5. #5
    Lovely chap dangel's Avatar
    Join Date
    Aug 2005
    Location
    Cambridge, UK
    Posts
    8,385
    Thanks
    407
    Thanked
    449 times in 331 posts
    • dangel's system
      • Motherboard:
      • See My Sig
      • CPU:
      • See My Sig
      • Memory:
      • See My Sig
      • Storage:
      • See My Sig
      • Graphics card(s):
      • See My Sig
      • PSU:
      • See My Sig
      • Case:
      • See My Sig
      • Operating System:
      • Windows 10
      • Monitor(s):
      • See My Sig
      • Internet:
      • 60mbit Sky LLU
    Quote Originally Posted by timtim86 View Post
    That was a very informative post, thank you. Didn't realise that creating a RAID setup would wipe all the data. How would you go about backing up 100gigs of data? What about partitioning, how does that affect RAID?
    It's not that it physically wipes the data, it's that you basically creating a 'new drive' based on a number of physical drives. Windows sees the whole RAID set (composed of a number of physical drives) as one device - and so partitioning works in exactly the same way as far as windows is concerned. This is why you need to feed Windows RAID drivers - so that it can understand how to access the new device and boot from it.

    Backing up - well you've basically two practical choices - buy a third drive to use on it's own for backups and put it directly in your PC or, use it externally with a USB2 case. I do the latter as you can turn off the drive when it's not in use.

    There are other types of RAID too - see this: http://searchstorage.techtarget.com/...214332,00.html but it depends what your RAID device supports as to what you can use. Some forms of RAID require a lot of CPU interaction e.g. RAID 5 so aren't recommended without a dedicated RAID card (which has it's own processor) - e.g. if you were using a motherboard's RAID controller you'd find it's actually 'software' driven (e.g. NVRAID for nVidia chipsets) by your CPU. Personally I like the simplicity of RAID 0 which boosts performance significantly and couple this with backups using Acronis True Image which makes recovery a doddle.

    Hard drives are so cheap now backing up 100gigs isn't a problem - not when a 300gb drive can be bought for silly money..
    System 001: Maximus VII Formula, 4790k i7, RTX 2080ti FE (incoming), 16GIG Corsair Vengence DDR3 RAM CL9, Corsair HX1000, ROG SWIFT PG278Q , SSDs, Antec 1200 case, All watercooled. [main]
    System 002: A8 3850 APU, ASUS uATX FM1A75 MB, 4GB Corsair Vengeance DDR3, Corsair psu, OCZ Agility 3, 1TB F3, Dell 2001FP 20" LCD, £7's worth of 5.1 speakers (they rock) Windows 7 x64[wife/server]
    System 003: AsRock MB, APU, 8 GIG Corsair, Silverstone HTPC case, stock cooler, GT220 1gbDDR3, WD Green 3TB, Kingston 40gb SSD, MCE Remote, Panasonic 50" LCD (87BDX) via HDMI Windows 8.1.1 (32) [media centre]
    System 004: Asus UL50AT Intel Core 2 Duo,4GB, Intel Gen 2 80GB SSD, Win 8.1.1 x64 [no justification]
    System 005: HP Proliant N40L Microserver, 4x2TB drives, fan mod, Pico PSU mod, Win7 x86 [file server]
    System 006: Dell Optiplex 9010, i7, 8gb, 128gb Samsung 830 x 2 (boot and VM drive), 1TB WD HDD, ATI something, Windows 8.1.1 x64 RTM [work]


  6. #6
    Senior Member
    Join Date
    Nov 2006
    Location
    London
    Posts
    433
    Thanks
    17
    Thanked
    0 times in 0 posts
    • timtim86's system
      • Motherboard:
      • Shuttle
      • CPU:
      • Athlon X2 5000+
      • Memory:
      • 6GB OCZ Gold 6400
      • Storage:
      • 2 x 250GB Seagates, 1 x 750GB Samsung
      • Graphics card(s):
      • 8800GS 384MB
      • PSU:
      • Shuttle 400W
      • Case:
      • Shuttle SN27P2
      • Operating System:
      • Windows 7 Pro
      • Monitor(s):
      • Dell 2007WFP
    Thank you for two brilliant posts, you've pretty much cleared it all up for me. Now i just have to decide how to backup everything and i'll be on my way! Does anyone else want to weigh in on Raid and how it's turned out for them?

    Thanks Dangel.

  7. #7
    Lovely chap dangel's Avatar
    Join Date
    Aug 2005
    Location
    Cambridge, UK
    Posts
    8,385
    Thanks
    407
    Thanked
    449 times in 331 posts
    • dangel's system
      • Motherboard:
      • See My Sig
      • CPU:
      • See My Sig
      • Memory:
      • See My Sig
      • Storage:
      • See My Sig
      • Graphics card(s):
      • See My Sig
      • PSU:
      • See My Sig
      • Case:
      • See My Sig
      • Operating System:
      • Windows 10
      • Monitor(s):
      • See My Sig
      • Internet:
      • 60mbit Sky LLU
    No worries glad to help

    I thought it'd be a lot harder the first time I did it - once you break your RAID virginity everything will be fine
    System 001: Maximus VII Formula, 4790k i7, RTX 2080ti FE (incoming), 16GIG Corsair Vengence DDR3 RAM CL9, Corsair HX1000, ROG SWIFT PG278Q , SSDs, Antec 1200 case, All watercooled. [main]
    System 002: A8 3850 APU, ASUS uATX FM1A75 MB, 4GB Corsair Vengeance DDR3, Corsair psu, OCZ Agility 3, 1TB F3, Dell 2001FP 20" LCD, £7's worth of 5.1 speakers (they rock) Windows 7 x64[wife/server]
    System 003: AsRock MB, APU, 8 GIG Corsair, Silverstone HTPC case, stock cooler, GT220 1gbDDR3, WD Green 3TB, Kingston 40gb SSD, MCE Remote, Panasonic 50" LCD (87BDX) via HDMI Windows 8.1.1 (32) [media centre]
    System 004: Asus UL50AT Intel Core 2 Duo,4GB, Intel Gen 2 80GB SSD, Win 8.1.1 x64 [no justification]
    System 005: HP Proliant N40L Microserver, 4x2TB drives, fan mod, Pico PSU mod, Win7 x86 [file server]
    System 006: Dell Optiplex 9010, i7, 8gb, 128gb Samsung 830 x 2 (boot and VM drive), 1TB WD HDD, ATI something, Windows 8.1.1 x64 RTM [work]


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Raid NAS Again
    By alexkoon in forum PC Hardware and Components
    Replies: 2
    Last Post: 01-03-2006, 11:12 PM
  2. Are RAID arrays worth it?
    By latrosicarius in forum PC Hardware and Components
    Replies: 28
    Last Post: 05-02-2006, 08:00 PM
  3. Raid
    By satan in forum PC Hardware and Components
    Replies: 1
    Last Post: 01-12-2005, 12:07 AM
  4. PCI Raid 3 Controller - Worth the move?
    By GingerNinja.net in forum PC Hardware and Components
    Replies: 9
    Last Post: 12-09-2005, 04:48 PM
  5. To RAID or not to RAID?
    By GingerNinja.net in forum PC Hardware and Components
    Replies: 15
    Last Post: 27-09-2004, 11:58 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •