Hi All, I'm wondering if anyone has discovered any nice tricks to assist in identification of hdd devices. I have an 8 bay hotswap array, pretty lights and have been wondering what others out there might be doing to determine which disk in an array is which. I've noted that device allocation can change with the generation of new initrd's and installation of new kernels; i.e. /dev/sdc becomes /dev/sda depending upon what order the modules load etc. I'm wondering if one could send a looped read/write task to a swap partition or something to determine which the device is? Also I've not had much joy in attempting to "hotswap" SATA on a live system. Can anyone attest to successful hotswap (or blanket rule out as doesn't work) using std on board SATA controllers, cf dedicated raid card, or suggest further reading? I've spent considerable time here and there in recent years trying to find some decent info on this... Also just tried 2.6.21 mdadm (2.6.2) --grow of a raid6 array. Currently being a test system, I had the luxury of adding 2 disks at once. The result is initially impressive, although the resync growing form 6 to 8 x 300 GB partitions is slow plodding on a "live system" (not single user mode) @ 1640K/sec and % cpu very high. finish=3148.3 min .... ~2 days. Cheers, Lew - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
