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Thread ID: 79732	2007-05-30 07:24:00	Adding a second hard drive	JMoore (9352)	Press F1

Post ID	Timestamp	Content	User
554407	2007-06-02 15:30:00	I am not sure on JBODs... If one dies, can you still access the data on the other drives? and if you take out one dive and put into another PC can that PC see the data that is on the HDD? and add HDDs when you want to the existing JBOD? I am sure you mean 40GB :p ;) and don't forget the capacity that gets lost in formatting and all that ;) I swap JBOD drives around all the time...no problem... I keep Windows on a separate root drive of 40g, so if it ever gets corrupted, I can just swap in another, pre-loaded XP system in place of it. If I put in a new hdd in place of one that has data, all I have to do is go into the disc management area and initialize it and it's ready to use after it's formatted.	SurferJoe46 (51)
554408	2007-06-02 21:23:00	I am not sure on JBODs . . . same had to look it up- JBOD (for "just a bunch of disks," or sometimes "just a bunch of drives") is a derogatory term - the official term is "spanning" - used to refer to a computer's hard disks that haven't been configured according to the RAID (for "redundant array of independent disks") system to increase fault tolerance and improve data access performance . The RAID system stores the same data redundantly on multiple disks that nevertheless appear to the operating system as a single disk . Although, JBOD also makes the disks appear to be a single one, it accomplishes that by combining the drives into one larger logical one . JBOD doesn't deliver any advantages over using separate disks independently and doesn't provide any of the fault tolerance or performance benefits of RAID . ## and When you look at it, JBOD doesn't really have a lot to recommend it . It still requires a controller card or software driver, which means that almost any system that can do JBOD can also do RAID 0, and RAID 0 has significant performance advantages over JBOD . Neither provide fault tolerance, so that's a wash . There are only two possible advantages of JBOD over RAID 0: * Avoiding Drive Waste: If you have a number of odd-sized drives, JBOD will let you combine them into a single unit without loss of any capacity; a 10 GB drive and 30 GB would combine to make a 40 GB JBOD volume but only a 20 GB RAID 0 array . This may be an issue for those expanding an existing system, though with drives so cheap these days it's a relatively small advantage . * Easier Disaster Recovery: If a disk in a RAID 0 volume dies, the data on every disk in the array is essentially destroyed because all the files are striped; if a drive in a JBOD set dies then it may be easier to recover the files on the other drives (but then again, it might not, depending on how the operating system manages the disks . ) Considering that you should be doing regular backups regardless, and that even under JBOD recovery can be difficult, this too is a minor advantage .	Morpheus1 (186)
554409	2007-06-02 21:42:00	same had to look it up I know the basics of it, just not sure about the parts that I asked about above... and couldn't be bothered Googleing at the time :p I will look for the answers later...	The_End_Of_Reality (334)
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