April 8, 201115 yr I've been away for a while, so I have had some catch-up reading to do! I just read through the EARS Jumpered / Unjumpered Thread, and I don't think this situation falls into one of the listed options. I have two jumpered EARS drives, precleared prior to 4.7, that have never been added to my array. I should just add it and be sure to set the alignment to unaligned? Since I have yet to add a new disk to my array since 4.7, this can be set per-disk, correct? So I can still go ahead and change the default setting to 4k aligned? Thanks!
April 8, 201115 yr I've been away for a while, so I have had some catch-up reading to do! I just read through the EARS Jumpered / Unjumpered Thread, and I don't think this situation falls into one of the listed options. I have two jumpered EARS drives, precleared prior to 4.7, that have never been added to my array. I should just add it and be sure to set the alignment to unaligned? Since I have yet to add a new disk to my array since 4.7, this can be set per-disk, correct? So I can still go ahead and change the default setting to 4k aligned? Thanks! Because the disks already have a valid preclear signature they will be used as currently partitioned. The default setting in unRAID is ONLY used if a disk has not been previously partitioned or precleared. It has no effect otherwise. You can test the current partitioning and preclear status by using the newest version of the preclear script and typing: preclear_disk.sh -t /dev/sdX Because your disks are jumpered and precleared you want unRAID leave the partition starting at logical sector 63. Since your disks are jumpered and already precleared they will get best performance with the partition starting on sector 63. (because of the jumper it will internally add 1 to requested sectors making the end-result aligned.)
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