From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sharif Islam Subject: Confusing failed disk situation Date: Wed, 05 Jan 2005 11:50:41 -0600 Message-ID: <41DC28F1.6030109@uiuc.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I am rebuilding a RAID-5 with 5 disk. Last night when it finished I saw the RAID is done with one failed disk. Not sure what happened. It gave me inode error on mke2fs. Then I replaced the failed disk(hdi) with another old disk. I am pretty sure both disks are fine. I noticed this. Jan 5 11:12:50 kernel: --- rd:5 wd:4 fd:1 Jan 5 11:12:50 kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdg1 Jan 5 11:12:50 kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hdh1 Jan 5 11:12:50 kernel: disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdj1 Jan 5 11:12:50 kernel: disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdf1 Jan 5 11:12:50 kernel: disk 4, s:0, o:0, n:4 rd:4 us:1 dev:[dev 00:00] Jan 5 11:12:50 kernel: RAID5 conf printout: Jan 5 11:12:50 kernel: --- rd:5 wd:4 fd:1 Jan 5 11:12:50 kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdg1 Jan 5 11:12:50 kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hdh1 Jan 5 11:12:50 kernel: disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdj1 Jan 5 11:12:50 kernel: disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdf1 Jan 5 11:12:50 kernel: disk 4, s:0, o:0, n:4 rd:4 us:1 dev:[dev 00:00] Jan 5 11:12:50 kernel: md2: resyncing spare disk hdi1 to replace failed disk Jan 5 11:12:50 kernel: RAID5 conf printout: Jan 5 11:12:50 kernel: --- rd:5 wd:4 fd:1 Jan 5 11:12:50 kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdg1 Jan 5 11:12:50 kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hdh1 Jan 5 11:12:50 kernel: disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdj1 Jan 5 11:12:50 kernel: disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdf1 Jan 5 11:12:50 kernel: disk 4, s:0, o:0, n:4 rd:4 us:1 dev:[dev 00:00] Jan 5 11:12:50 kernel: RAID5 conf printout: Jan 5 11:12:50 kernel: --- rd:5 wd:4 fd:1 Jan 5 11:12:50 kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdg1 Jan 5 11:12:50 kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hdh1 Jan 5 11:12:50 kernel: disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdj1 Jan 5 11:12:50 kernel: disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdf1 Jan 5 11:12:50 kernel: disk 4, s:0, o:0, n:4 rd:4 us:1 dev:[dev 00:00] Jan 5 11:12:50 kernel: md: syncing RAID array md2 Jan 5 11:12:50 kernel: md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc. Jan 5 11:12:50 kernel: md: using maximum available idle IO bandwith (but not more than 10000 KB/sec) for reconstruction. cat /proc/mdstat Personalities : [linear] [raid5] read_ahead 1024 sectors Event: 2 md2 : active raid5 hdi1[5] hdf1[3] hdj1[2] hdh1[1] hdg1[0] 468882432 blocks level 5, 128k chunk, algorithm 2 [5/4] [UUUU_] [===>.................] recovery = 17.7% (20796612/117220608) finish=156.3min speed=10274K/sec unused devices: Is hdi again failed? Or something wrong with the cable/raid card for that drive?