Hello, Thank you for your reply. I am only home on weekends, so it took some time to try your patch. I applied the patch to 2.6.18-rc4. At first the good thing: hotplug is working, the device is properly removed and re-added. But now the bad side: The device names are changed. When I remove /dev/sdb, and add it again, it is named /dev/sdc. When I remove /dev/sda afterwards, it is named /dev/sdd. Furthermore I am still looking for a solution which automatically starts the RAID recovery process when the device is re-added. I attached the relevant parts of /var/log/messages (removal of /dev/sdb and it being /dev/sdc afterwards). Philipp
Aug 12 17:38:17 srv1 kernel: ata2: exception Emask 0x10 SAct 0x0 SErr 0x1810000 action 0x2 frozen Aug 12 17:38:18 srv1 kernel: ata2: hard resetting port Aug 12 17:38:19 srv1 kernel: ata2: SATA link down (SStatus 0 SControl 300) Aug 12 17:38:19 srv1 kernel: ata2: failed to recover some devices, retrying in 5 secs Aug 12 17:38:24 srv1 kernel: ata2: hard resetting port Aug 12 17:38:25 srv1 kernel: ata2: SATA link down (SStatus 0 SControl 300) Aug 12 17:38:25 srv1 kernel: ata2: failed to recover some devices, retrying in 5 secs Aug 12 17:38:30 srv1 kernel: ata2: hard resetting port Aug 12 17:38:31 srv1 kernel: ata2: SATA link down (SStatus 0 SControl 300) Aug 12 17:38:31 srv1 kernel: ata2.00: disabled Aug 12 17:38:32 srv1 kernel: ata2: EH pending after completion, repeating EH (cnt=4) Aug 12 17:38:32 srv1 kernel: ata2: EH complete Aug 12 17:38:32 srv1 kernel: ata2.00: detaching (SCSI 1:0:0:0) Aug 12 17:38:52 srv1 kernel: ata2: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0x2 frozen Aug 12 17:38:52 srv1 kernel: ata2: waiting for device to spin up (8 secs) Aug 12 17:38:52 srv1 kernel: ata2: hard resetting port Aug 12 17:39:00 srv1 kernel: ata2: port is slow to respond, please be patient Aug 12 17:39:02 srv1 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Aug 12 17:39:02 srv1 kernel: ata2.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32) Aug 12 17:39:02 srv1 kernel: ata2.00: configured for UDMA/133 Aug 12 17:39:02 srv1 kernel: ata2: EH pending after completion, repeating EH (cnt=4) Aug 12 17:39:02 srv1 kernel: ata2: EH complete Aug 12 17:39:02 srv1 kernel: Vendor: ATA Model: ST3500630AS Rev: 3.AA Aug 12 17:39:02 srv1 kernel: Type: Direct-Access ANSI SCSI revision: 05 Aug 12 17:39:02 srv1 kernel: SCSI device sdc: 976773168 512-byte hdwr sectors (500108 MB) Aug 12 17:39:02 srv1 kernel: sdc: Write Protect is off Aug 12 17:39:02 srv1 kernel: SCSI device sdc: drive cache: write back Aug 12 17:39:02 srv1 kernel: SCSI device sdc: 976773168 512-byte hdwr sectors (500108 MB) Aug 12 17:39:02 srv1 kernel: sdc: Write Protect is off Aug 12 17:39:02 srv1 kernel: SCSI device sdc: drive cache: write back Aug 12 17:39:02 srv1 kernel: sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 > Aug 12 17:39:02 srv1 kernel: sd 1:0:0:0: Attached scsi disk sdc Aug 12 17:39:02 srv1 kernel: sd 1:0:0:0: Attached scsi generic sg1 type 0
