<div dir="ltr"><span style="font-size:12.8px">Dear linux-raid mailing list,</span><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I have a RAID0 array of four 3TB disks that failed on the "third" disk.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I am aware of the non-redundancy of RAID0 but I would like to recover the filenames from that RAID0. If I could recover some data it would be a bonus.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Below you'll find the outputs of the following commands</div><div style="font-size:12.8px"> mdadm --examine /dev/sd[abcd]1<br></div><div style="font-size:12.8px"> fdisk -l<br></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">where sda1, sdb1, sdc1 and sdd1 should be the 4 RAID devices.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">What could be my next step?</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I thank you for your time</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Michel Dubois</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">======================</div><div style=""><div style="font-size:12.8px">mdadm --examine /dev/sd[abcd]1<br></div><div style=""><div style=""><span style="font-size:12.8px">/dev/sda1:</span></div><div style=""><span style="font-size:12.8px"> Magic : a92b4efc</span></div><div style=""><span style="font-size:12.8px"> Version : 00.90.00</span></div><div style=""><span style="font-size:12.8px"> UUID : 7d247a6e:7b5d46c8:f52d9c89:db304b21</span></div><div style=""><span style="font-size:12.8px"> Creation Time : Mon Apr 23 19:55:36 2012</span></div><div style=""><span style="font-size:12.8px"> Raid Level : raid1</span></div><div style=""><span style="font-size:12.8px"> Used Dev Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Array Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Raid Devices : 4</span></div><div style=""><span style="font-size:12.8px"> Total Devices : 3</span></div><div style=""><span style="font-size:12.8px">Preferred Minor : 0</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Update Time : Mon Jun 27 21:12:23 2016</span></div><div style=""><span style="font-size:12.8px"> State : clean</span></div><div style=""><span style="font-size:12.8px"> Active Devices : 3</span></div><div style=""><span style="font-size:12.8px">Working Devices : 3</span></div><div style=""><span style="font-size:12.8px"> Failed Devices : 1</span></div><div style=""><span style="font-size:12.8px"> Spare Devices : 0</span></div><div style=""><span style="font-size:12.8px"> Checksum : 1a57db60 - correct</span></div><div style=""><span style="font-size:12.8px"> Events : 164275</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Number Major Minor RaidDevice State</span></div><div style=""><span style="font-size:12.8px">this 0 8 1 0 active sync /dev/sda1</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> 0 0 8 1 0 active sync /dev/sda1</span></div><div style=""><span style="font-size:12.8px"> 1 1 8 17 1 active sync /dev/sdb1</span></div><div style=""><span style="font-size:12.8px"> 2 2 0 0 2 faulty removed</span></div><div style=""><span style="font-size:12.8px"> 3 3 8 33 3 active sync /dev/sdc1</span></div><div style=""><span style="font-size:12.8px">/dev/sdb1:</span></div><div style=""><span style="font-size:12.8px"> Magic : a92b4efc</span></div><div style=""><span style="font-size:12.8px"> Version : 00.90.00</span></div><div style=""><span style="font-size:12.8px"> UUID : 7d247a6e:7b5d46c8:f52d9c89:db304b21</span></div><div style=""><span style="font-size:12.8px"> Creation Time : Mon Apr 23 19:55:36 2012</span></div><div style=""><span style="font-size:12.8px"> Raid Level : raid1</span></div><div style=""><span style="font-size:12.8px"> Used Dev Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Array Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Raid Devices : 4</span></div><div style=""><span style="font-size:12.8px"> Total Devices : 3</span></div><div style=""><span style="font-size:12.8px">Preferred Minor : 0</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Update Time : Mon Jun 27 21:12:23 2016</span></div><div style=""><span style="font-size:12.8px"> State : clean</span></div><div style=""><span style="font-size:12.8px"> Active Devices : 3</span></div><div style=""><span style="font-size:12.8px">Working Devices : 3</span></div><div style=""><span style="font-size:12.8px"> Failed Devices : 1</span></div><div style=""><span style="font-size:12.8px"> Spare Devices : 0</span></div><div style=""><span style="font-size:12.8px"> Checksum : 1a57db72 - correct</span></div><div style=""><span style="font-size:12.8px"> Events : 164275</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Number Major Minor RaidDevice State</span></div><div style=""><span style="font-size:12.8px">this 1 8 17 1 active sync /dev/sdb1</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> 0 0 8 1 0 active sync /dev/sda1</span></div><div style=""><span style="font-size:12.8px"> 1 1 8 17 1 active sync /dev/sdb1</span></div><div style=""><span style="font-size:12.8px"> 2 2 0 0 2 faulty removed</span></div><div style=""><span style="font-size:12.8px"> 3 3 8 33 3 active sync /dev/sdc1</span></div><div style=""><span style="font-size:12.8px">/dev/sdc1:</span></div><div style=""><span style="font-size:12.8px"> Magic : a92b4efc</span></div><div style=""><span style="font-size:12.8px"> Version : 00.90.00</span></div><div style=""><span style="font-size:12.8px"> UUID : 7d247a6e:7b5d46c8:f52d9c89:db304b21</span></div><div style=""><span style="font-size:12.8px"> Creation Time : Mon Apr 23 19:55:36 2012</span></div><div style=""><span style="font-size:12.8px"> Raid Level : raid1</span></div><div style=""><span style="font-size:12.8px"> Used Dev Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Array Size : 20980800 (20.01 GiB 21.48 GB)</span></div><div style=""><span style="font-size:12.8px"> Raid Devices : 4</span></div><div style=""><span style="font-size:12.8px"> Total Devices : 3</span></div><div style=""><span style="font-size:12.8px">Preferred Minor : 0</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Update Time : Mon Jun 27 21:12:23 2016</span></div><div style=""><span style="font-size:12.8px"> State : clean</span></div><div style=""><span style="font-size:12.8px"> Active Devices : 3</span></div><div style=""><span style="font-size:12.8px">Working Devices : 3</span></div><div style=""><span style="font-size:12.8px"> Failed Devices : 1</span></div><div style=""><span style="font-size:12.8px"> Spare Devices : 0</span></div><div style=""><span style="font-size:12.8px"> Checksum : 1a57db86 - correct</span></div><div style=""><span style="font-size:12.8px"> Events : 164275</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Number Major Minor RaidDevice State</span></div><div style=""><span style="font-size:12.8px">this 3 8 33 3 active sync /dev/sdc1</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> 0 0 8 1 0 active sync /dev/sda1</span></div><div style=""><span style="font-size:12.8px"> 1 1 8 17 1 active sync /dev/sdb1</span></div><div style=""><span style="font-size:12.8px"> 2 2 0 0 2 faulty removed</span></div><div style=""><span style="font-size:12.8px"> 3 3 8 33 3 active sync /dev/sdc1</span></div><div style="font-size:12.8px"><br></div></div><div style="font-size:12.8px">======================</div><div style=""><div style=""><span style="font-size:12.8px">fdisk -l</span><br></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">Disk /dev/sda: 3000.5 GB, 3000592982016 bytes</span></div><div style=""><span style="font-size:12.8px">255 heads, 63 sectors/track, 364801 cylinders</span></div><div style=""><span style="font-size:12.8px">Units = cylinders of 16065 * 512 = 8225280 bytes</span></div><div style=""><span style="font-size:12.8px">Disk identifier: 0x03afffbe</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Device Boot Start End Blocks Id System</span></div><div style=""><span style="font-size:12.8px">/dev/sda1 1 267350 2147483647+ ee EFI GPT</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">Disk /dev/sdb: 3000.5 GB, 3000592982016 bytes</span></div><div style=""><span style="font-size:12.8px">255 heads, 63 sectors/track, 364801 cylinders</span></div><div style=""><span style="font-size:12.8px">Units = cylinders of 16065 * 512 = 8225280 bytes</span></div><div style=""><span style="font-size:12.8px">Disk identifier: 0x142a889c</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Device Boot Start End Blocks Id System</span></div><div style=""><span style="font-size:12.8px">/dev/sdb1 1 267350 2147483647+ ee EFI GPT</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted.</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">Disk /dev/sdc: 3000.5 GB, 3000592982016 bytes</span></div><div style=""><span style="font-size:12.8px">255 heads, 63 sectors/track, 364801 cylinders</span></div><div style=""><span style="font-size:12.8px">Units = cylinders of 16065 * 512 = 8225280 bytes</span></div><div style=""><span style="font-size:12.8px">Disk identifier: 0x3daebd50</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px"> Device Boot Start End Blocks Id System</span></div><div style=""><span style="font-size:12.8px">/dev/sdc1 1 267350 2147483647+ ee EFI GPT</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">Disk /dev/md0: 21.4 GB, 21484339200 bytes</span></div><div style=""><span style="font-size:12.8px">2 heads, 4 sectors/track, 5245200 cylinders</span></div><div style=""><span style="font-size:12.8px">Units = cylinders of 8 * 512 = 4096 bytes</span></div><div style=""><span style="font-size:12.8px">Disk identifier: 0x00000000</span></div><div style=""><span style="font-size:12.8px"><br></span></div><div style=""><span style="font-size:12.8px">Disk /dev/md0 doesn't contain a valid partition table</span></div></div><div style="font-size:12.8px"><br></div></div></div>