Recent content by Pultzar

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    Seagate 8TB Compatibility

    Beware that they are 4k native drives rather that 512 or 512E drives.
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    ARECA Owner's Thread (SAS/SATA RAID Cards)

    You might be best recreating the array and restoring from a backup. Since the controller doesn't know about your file system, I can't see how it would know what parts of the array are in use vs not in use.
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    Seagate 8tb hdd

    I had 3/3 of the 3TB drives fail on me in rapid succession. Hoping the 8TB drive is better!
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    A few new drives... think they'd miss them? ;-)

    Yeah if my math is correct that is about 150mb/second. Can't expect much better than that! Even a RAID 1 rebuild would take that long.
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    A few new drives... think they'd miss them? ;-)

    I don't see why the file system would matter, RAID is below the file system. 14 hours is not horrible depending on if you are using the system live or not. However if the array was larger the rebuild would have to read more data. Not sure how much slower this makes things as it should be able...
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    A few new drives... think they'd miss them? ;-)

    Weird that you are getting such inconsistent performance with sequential copies. Let us know how the R6 goes.
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    RAID 6 using consumer/NAS drives?

    Yeah I'm trying to be backup-first before worrying about the raid. It's not like the raid will protect me from theft or other damage to the system (including from software). But I don't want to restore from a backup every 6 months if a drive fails as it can be a bit of a pain. Otherwise I...
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    RAID 6 using consumer/NAS drives?

    Over at Spiceworks it is the only thing that people seem to recommend for a large number of drives, since as you increase the number of drives you are not compromising safety.
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    RAID 6 using consumer/NAS drives?

    No I am talking about raid 1+0. As the number of drives increases, there are more chances that a drive will fail. However there are also more possibilities for the failure to be in a place where it does not take down the array. These probabilities cancel each other out. Anyway my original...
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    RAID 6 using consumer/NAS drives?

    With RAID 10, the odds of a disk failure taking out the array is the same as RAID 1. It does not increase as the # of disks increases. With RAID 6 this is not true and that should be considered as well. Not to mention how URE affects a RAID 6 rebuild. ZFS is not really an option for me...
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    RAID 6 using consumer/NAS drives?

    As I said above, I have three backups of my data.
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    RAID 6 using consumer/NAS drives?

    Seems like it is about the RAID size rather than the number of drives? During a rebuild, all data must be read in order to reconstruct the data. Whereas with RAID 10, only data from one drive needs to be read which is a big win.
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    RAID 6 using consumer/NAS drives?

    I make three copies to LTO-6 and store them offsite. But like others have said, I'm leaning RAID 10 for safety reasons. The data is video footage that is written one time and read many times. I'm also considering the new SMR drives.
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    RAID 6 using consumer/NAS drives?

    I'm thinking about a 12x6 TB RAID 6 resulting in 60 TB total using HGST NAS drives. However due to the higher URE rating on these drives compared to enterprise drives,I'm concerned about failure during rebuild. Has anybody tried such a configuration and done some rebuilds? Thanks!
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