JBOD

brookejp

brookejp

brookejp

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Sorry if this is in the wrong section..

just wants some advice and you guys on here a experts at it ;)

got 3X 3tb HDD if i JBOD them can i still add a disk in the future for more space without loosing any of the data already on the JBOD share... also If i remove a disk from the jbod can l still access the data on the removed disk on its own using another windows computer or is the data only accessable while the disk is a part of jbod. Thanksi have looked this up on the internet but seeing a lot of conflicting advise.. :confused: I understand raid 5 would be the better option, but the data isn't that important so i would prefer storage space over data redundancy.. but i don;t really want to loose the data through a setup i should have researched first..
 
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JBOD means "just a bunch of disks". Literally. If you want to merge this "bunch of disks" into a single shareable volume, you need to do something on top, either RAID 0, 1 or 5/6. So to answer your question, we would need further clarification about what software you're using to share these disks.

Since you mention RAID 5 as a "better option", perhaps what you are referring to is RAID 0. The problem is that with 3 disks in a RAID 0 configuration you have 3 times the likelihood of losing everything compared to if it was just a single drive. 4 drives means 4 times more likely to lose everything (and "everything" is even bigger with 4 disks than it is with 3), and so on.

If it's worth storing at all, it's worth protecting at least a little bit. You would be better off having individual shares (one per disk) so that if any one disk went, you only lost that disk's contents. But to make things simple, RAID 5 would be the best option.

As far as conflicting advice, the only thing you need to know is that if you join a group of disks together without any redundancy, you significantly increase your chances of losing everything.
 
Thanks rota. I managed to get hold of "qnap ts 869 pro" nas unit... at the moment i have the three disk in it and raided to jbod... at its sharing the jbod as a shared folder giving 9tb of space or thereabouts... i want to increase this at a future date when i can afford some more disks.. as there is 8bays available to use... what i don't want to happen is that if i wanted to ever remove 1 disk out of it thats been raided.. would i still be able to access the data i.e by just taking the removed disk out of the nas and putting it into say a caddy etc will windows see the drive an put a drive letter to it. Also would the jbod raid still function with the said disk removed from it... Some say yes and some say no... this is why i am getting confussed.. I may be best trying it out i.e adding and removing a disk from nas before i put data on it that i want.. and seeing what it does with it..
 
I guess what QNAP calls JBOD is plain RAID 0. If you have 3 x 3 TB drives and the QNAP is telling you that you have 9 TB available, then you definitely have no resiliency. If any of those drives dies, or if you remove one of them, you will lose all 9 TB of data with no chance of ever recovering it.

QNAP uses a proprietary format, so when you pull a drive out of the QNAP and plug it into Windows, Windows will ask if you want to format it (i.e. Windows won't recognise it).
 
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