![]() Then I do 5 full formatting runs to check if the number stays stable in a 48h stress test.īut one of 3 Disks was actually broken. I do buy broken HDDs which only have relocated sectors and no real issues. If your server setup is very easy to maintain, you could just use the larger spare drive to replace the parity disk today and use the old parity disk as spare for the data disks.īeside the intended way, I did actually find another use-case for MAX LBA. I'm glad that I did select two old 1 TB drives for testing because I forget that I need to wait for a full rebuild of the parity drive before the test array can be used. Maybe I will upgrade my parity drive in 5-10 years, but this thread was created to find a solution for the worst case scenario where a data drive does fail before I plan to upgrade the array size. Removing LBA is the same process as physical replacing the HDD, that should be clear I don't want to sell LBA for this, no I just need the permanent convention to the smaller size I treat max LBA just as a way for permanently converting a HDD to a smaller size I want to talk about the use case to convert an unfitting disk to align with that requirement. So anybody should have a spare disk on hand which is smaller or equal to the parity drive. Thanks for clarification, so instead of doing very inconvenient unsupported manual steps, it is just impossible to use a larger disk on a data drive fail. You will not be able to swap the parity driven before you have replaced and restored the the data disk. Not only for my usecase, but also for use cases with mixed vendors where the drive size is only off by some megabytes If seagates feature is compatible, this would be great. ![]() If both is supported by unraid, I could test HDD swap with to large drives using seagate seatool and I could share the results. I only have one external SATA connector, so I would need to connect the 2nd drive via USB: are USB 3.0 disks supported? is it possible to create an array with 2 drives? 1 data + 1 parity? I could use my main computer for testing unraid support for seagate max LBA, but I have some limits on my main rig: So I need some help with the evaluation of the seagate max LBA feature. And I don't have a spare testbench with 3 drives to test it outside of my unraid server. I could use a USB to SATA controller to plug my too large seagate drive into my array, but my licence does not allow additional drives. On my unraid server I don't have empty SATA ports to test it. I would like to evaluate seagates solution which is written directly to the drive controller but don't have an unraid server on hand to test it directly in unraid.Ĭould I do some test without unraid by checking how linux does see my max LBA seagate drive? I would need to know which parameters are used by unraid Yes, I understood the issue of BIOS related limits. If you are not sure about max LBA support, which hard disk parameters are queried during the disk size check? I could try to verify if these parameters get altered after I define a max LBA via seatools I have a Seagate drive, is the max LBA feature supported by unraid? Is it possible to assign partitions instead of disks to work around the drive too large issue? Update the parity drive to allow larger data drivesīecause you can not replace the parity drive in a degraded array so easily, I want to know more about the issues around too large hard drives before I have to deal with this issue. Which means in case of a data drive failure, I would need to replace 2 drives: If any of my drives fail, I know about the issue that I can not use a replacement drive which is larger than the parity drive. I don't want to upgrade my parity drive size because if the parity drive fails I don't want to be forced to buy an unnecessary large replacement drive. My spare drive is larger than any other drive in my array. I use multiple drives with different sizes in my array.
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