August 25, 200916 yr After doing a lot of research on different nas solutions I have decided to go for unraid. Using my old gaming machine. Mobo - Abit IP35 pro 4 Gig ram CPU - Q6600 I have also got a 1 terabyte drive and a 1.5 terabyte driving arriving tomorrow. What I want to know is whether you can have only two drives. 1 for data and 1 for parity. I am using the 1.5 terabyte drive as parity and a 1 terabyte drive for data. I will be adding another 1.5 terabyte drive for additional storage at a later date. I also want to know whether I can set unraid to give me just one "share" in a way that windows will see both 1.5 terabyte drives as one big 3 terabyte drive? Thanks!
August 25, 200916 yr After doing a lot of research on different nas solutions I have decided to go for unraid. Using my old gaming machine. Mobo - Abit IP35 pro 4 Gig ram CPU - Q6600 I have also got a 1 terabyte drive and a 1.5 terabyte driving arriving tomorrow. What I want to know is whether you can have only two drives. 1 for data and 1 for parity. I am using the 1.5 terabyte drive as parity and a 1 terabyte drive for data. I will be adding another 1.5 terabyte drive for additional storage at a later date. I also want to know whether I can set unraid to give me just one "share" in a way that windows will see both 1.5 terabyte drives as one big 3 terabyte drive? Thanks! Yes, and yes... there is one limitation... no single file can span the two disks. (Not that you are likely to create a single 2500 Gig file. Simply put, you cannot. The one LAN share will merge the contents of like named folders on the two data disks. If both have a "movies" folder, then the "movies" share will contain a listing of the movie files from both disks. fixed typo... Can't create file that will not fit on a single file-system. If you have two 1.5TB disks, and both are already full with 1TB of files each, the biggest single file you cannot create an 800Gig file. It will not fit in the free space on a single drive. Joe L.
August 25, 200916 yr Author Thanks for your reply Joe. I think I understand what you are saying. So regardless of how it is setup you cant have a file bigger than 2.5gig? So DVD Iso is out of the question? Or do you mean terabytes? So if I have two different size drives what happens when the 1 terabyte has reached capacity? Does unraid just start filling up only the second 1.5 terabyte drive? If the 1.5 terabyte drive then fails will the parity drive still be able to restore a new 1.5?
August 25, 200916 yr max file size would be 1.5tb since files can't span disks. and yes i'm sure the 2.5gb was meant to be 2.5tb
August 25, 200916 yr i'm currently running 1 parity and 1 data, though i have more than one share folder. I could have only 1 and it would be just fine. your files can be huge, just not over 1.5 TB (or 1 TB if writing to the 1 TB drive). Once I get my files off a current 1 TB drive in my desktop, I'll move it over to the array and have 2 data disks, but I'm not done doing that yet. Like you, I am planning on expanding my disk collection as needed.
August 25, 200916 yr max file size would be 1.5tb since files can't span disks. and yes i'm sure the 2.5gb was meant to be 2.5tb Yes, I intended to write 2500Gig. I have MANY ISO images... almost all larger than 2.5Gig. In fact, other than individual TV shows I recorded to DVD, there is nothing smaller than about 2.9Gig. -rwx------ 1 root root 5527410688 Dec 31 1969 /mnt/user/Movies/STAR_TREK-01-THE_MOTION_PICTURE.ISO* -rwx------ 1 root root 7397070848 Jan 1 1970 /mnt/user/Movies/STAR_TREK-02-THE_WRATH_OF_KHAN.ISO* -rwx------ 1 root root 6068185088 Dec 31 1969 /mnt/user/Movies/STAR_TREK-03-THE_SEARCH_FOR_SPOCK.ISO* -rwx------ 1 root root 4681426944 Dec 31 1969 /mnt/user/Movies/STAR_TREK-04-THE_VOYAGE_HOME.ISO* -rwx------ 1 root root 6800637952 Dec 4 2008 /mnt/user/Movies/STAR_TREK-05-THE_FINAL_FRONTIER.ISO* -rwx------ 1 root root 6866857984 Mar 16 2008 /mnt/user/Movies/STAR_TREK-06-THE_UNDISCOVERED_COUNTRY.ISO* -rwx------ 1 root root 3903784960 Mar 16 2008 /mnt/user/Movies/STAR_TREK-07-GENERATIONS.ISO* -rwx------ 1 root root 4101810176 Mar 16 2008 /mnt/user/Movies/STAR_TREK-08-FIRST_CONTACT.ISO* -rwx------ 1 root root 3960715264 Mar 16 2008 /mnt/user/Movies/STAR_TREK-09-INSURRECTION.ISO* -rwx------ 1 root root 4777740288 Mar 16 2008 /mnt/user/Movies/STAR_TREK-10-NEMESIS.ISO* -rwx------ 1 root root 6582757376 Dec 31 1969 /mnt/user/Movies/STAR_WARS-1-THE_PHANTOM_MENACE.ISO* -rwx------ 1 root root 6545285120 Dec 31 1969 /mnt/user/Movies/STAR_WARS-2-ATTACK_OF_THE_CLONES.ISO* -rwx------ 1 root root 6427412480 Dec 31 1969 /mnt/user/Movies/STAR_WARS-3-REVENGE_OF_THE_SITH.ISO* -rwx------ 1 root root 6559229952 Apr 2 2007 /mnt/user/Movies/STAR_WARS-4-A_NEW_HOPE.ISO* -rwx------ 1 root root 6493626368 Apr 3 2007 /mnt/user/Movies/STAR_WARS-5-THE_EMPIRE_STRIKES_BACK.ISO* -rwx------ 1 root root 6749061120 Dec 31 1969 /mnt/user/Movies/STAR_WARS-6-RETURN_OF_THE_JEDI.ISO* -rwx------ 1 root root 4312377344 Jun 1 2008 /mnt/user/Movies/STAYING_ALIVE.ISO* -rwx------ 1 root root 4331161600 Dec 31 1969 /mnt/user/Movies/STEPFORD_WIVES.ISO* -rwx------ 1 root root 5133099008 Oct 20 2008 /mnt/user/Movies/STEPHEN_KING'S-1408.ISO* -rwx------ 1 root root 4408309760 May 28 2008 /mnt/user/Movies/STEPHEN_KING'S-NEEDFUL_THINGS.ISO* -rwx------ 1 root root 4123199488 May 27 2008 /mnt/user/Movies/STEPHEN_KING'S-PET_SEMATARY.ISO* -rwx------ 1 root root 6971156480 Jun 1 2008 /mnt/user/Movies/STEPHEN_KING'S-ROSE_RED-Part1.ISO* -rwx------ 1 root root 3400269824 Jun 1 2008 /mnt/user/Movies/STEPHEN_KING'S-ROSE_RED-Part2.ISO* -rwx------ 1 root root 3323357184 Apr 4 2008 /mnt/user/Movies/STEPHEN_KING'S-SLEEPWALKERS.ISO* -rwx------ 1 root root 5533517824 Dec 31 1969 /mnt/user/Movies/STEPHEN_KING'S-THE_MIST.ISO* -rwx------ 1 root root 4100917248 Dec 31 1969 /mnt/user/Movies/STEPHEN_KING'S_IT-Part1.ISO* -rwx------ 1 root root 4072503296 Mar 30 2008 /mnt/user/Movies/STEPHEN_KING'S_IT-Part2.ISO* -rwx------ 1 root root 8172849152 Dec 31 1969 /mnt/user/Movies/STEPHEN_KING'S_IT.ISO* -rwx------ 1 root root 5913358336 Dec 31 1969 /mnt/user/Movies/STEPHEN_KING-THE_DEAD_ZONE.ISO*
August 25, 200916 yr So if I have two different size drives what happens when the 1 terabyte has reached capacity? Does unraid just start filling up only the second 1.5 terabyte drive? If the 1.5 terabyte drive then fails will the parity drive still be able to restore a new 1.5? Just to be clear, are you talking about your current configuration of just 2 drives, or your future configuration of 3 or more drives? In your current configuration, all your data will be stored on the 1 TB data drive. So once the 1 TB drive has reached capacity, you will be out of space and need to buy another drive. In your future configuration, your data will be stored on both the 1 TB data drive and the 1.5 TB data drive. In that case, once the 1 TB data drive has reached capacity, unRAID may or may not start filling up the 1.5 TB data drive, depending on your settings. This is where the 'split level' setting comes in. In your current configuration with a 1 TB data drive and a 1.5 TB parity drive, your max file size will be 1 TB. In your future configuration of 2 data drives (1 TB and 1.5 TB) and one parity drive (1.5 TB), your max file size will be 1.5 TB, and you would only be able to have a single file that large. Your next largest file could be 1 TB, and after that, you would be out of space. Also, you said "...windows will see both 1.5 terabyte drives as one big 3 terabyte drive?" If we are talking about your current configuration, then the answer is no. Windows will see a 1 TB drive. If we are talking about your future configuration then the answer is still no. Windows will see a single 2.5 TB drive (1 TB data + 1.5 TB data). Windows will never see your parity drive, and your parity drive will not affect your unRAID server's total storage capacity. The purpose of the parity drive is to provide unRAID the ability to recover from a single hard drive failure. So in your future configuration, any one of the three drives could fail and unRAID will be able to recover from it with no data loss. If two or more drives fail simulaneously, then data loss is possible. Also, you can have any number of User Shares that you like. There is no upper or lower limit (that I know of, at least).
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