I'm running Debian Etch on a SuperMicro 6024H 2U server. Specs on it can be viewed here: http://www.supermicro.com/products/system/2U/6024/SYS-6024H-T.cfm The system has a Marvell 88SX6081 8-port SATA controller attached to a 6-port backplane. I currently have two drives in it, using _software_ RAID 1 and LVM in Linux. I'm no longer sure why I didn't just use the onboard hardware RAID system; I think I assumed it would be easier to monitor/manage the RAID using the existing Linux software tools. Maybe I was wrong about that... Earlier this year one of the drives in the system failed. No big deal - I got a replacement, went down to the datacenter, yanked the old one and put in a new one. The system didn't seem to mind this at all, but with the new drive in place I couldn't make the system recognize it. dmesg seemed to show that a drive was present, but no amount of fiddling would allow me to add the drive to the array and get the rebuild started. After awhile I read the FAQ here: http://linux-ata.org/software-status.html This seemed to indicate that full hotplug support wasn't in the Linux kernel until 2.6.19. Of course, I happen to be running 2.6.17. I ended up rebooting the box, and as soon as it came up it noticed the new drive, and I was able to add it into the RAID and get the rebuild started. I would have preferred not to have to do this though. My question is this: Can anyone confirm that my mistake was trying to do hotplug on a 2.6.17 kernel? Or is it possible I did something else wrong? My procedure was to use mdadm -f to mark the drive failed, then mdadm -r to remove it from the array. Then physically unplug it, and insert the new drive. After that I tried using the rescan-scsi-bus.sh script, which basically just does the echo "- - -" > /sys/class/scsi_host/host1/scan stuff, and tried other things as well, but the system never saw the drive until I rebooted. Bonus question: Can you point me to a set of instructions for what exactly I need to do on the software side to swap a drive? -- Owen B. Mehegan (owen@xxxxxxxxxxxxxxxx) -- Owen B. Mehegan (owen@xxxxxxxxxxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
