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I’m eating a popular raid5 software configuration of 4 hard drives.sda, sdb, sdc, all sdd detailsSince o was in working order, I wanted to check the compartment. To deal with this, I connected one of the hard drives (SDDs).Everything went well, so I tested adding the hard drive again with mdadm --add / dev / md0 / dev / sdd , mdadm rebuilt the collection, so after a few hours j checked and something went wrong , sdc failed.
In short: SDC contains bad sectors if the mdadm state of those sectors is not satisfied.
Read error
could not be fixed (sector 753682864 on sdc).
I can’t – collect the lineup, as it thinks that sdc and sdd are still out of order.
I can tell that mdadm / dev / md0 --create --assume-clean -n4 -l5 / dev / sd [abc] is missing . After trying this you can add SDD to no avail.
If mdadm displays some useful information and reports the world in / var / log / messages. Can I check the following by running hdparm --read-sector [sector] / dev / sdc .If I overwrite hdparm --write-sector with this part, it gets replaced and works again. But this is usually a very time consuming process.
Are there any ways to get me out of this mess Erichi? Would it help to mirror sdc to sdd (with dd) and in that case add sdd as missing?
My raid failed and I don’t know what is the best way to improve it.
I have 4 disks in one RAID5 configuration. However, it seems that on failure ( sde1 ) only md cannot call the array because it says sdd1 is subject to a penalty
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core nas: [...] sd 5: 0: 0: 0: [sde] core:nas [...] sd 5: 0: 0: 0: [sde] CDB: Kernel:nas [...] end_request: I / O error, dev sde, 937821218Nas trading core: [...] sd 5: 0: 0: 0: Killing [sde] requestkernel nas: [... Md / raid: md0:] Read error instead of correctable (sector 937821184 on sde1).nas kernel: [...] md / raid disk: md0: error during sde1, device deactivation.nas kernel: [...] md / raid operation: md0: continued on 2 devices.nas kernel: [...] md / raid: md0: read errors cannot always be fixed (sector 937821256 on sde1).nas kernel: [...] 5: 0: 0: 0: sd [sde] Error mode is not handlednas core: [...] sd 5: 0: 0: 0: [sde] core:nas [...] sd 5: 0: 0: 0: [sde] CDB: Kernel:nas [...] I / O end_request: error, dev sde, segment 937820194nas kernel: [...] sd 5: 0: 0: 0: [sde] SCSI cache synchronizednas core: [...] sd 5: 0: 0: 0: [sde] core:nas [...] 5: 0: 0: 0: sd [sde] Turn off the hard drivekernel nas: [...] sd 5: 0: 0: 0: [sde] FAILURENas start_stop Kernel: [...] sd 5: 0: 0: 0: [sde] Kernel:nas [...] md: ungroup NAS kernel: [...] md: export_rdev (sde1)core nas: [...] doctor: bind NAS kernel: [...] md: bind NAS kernel: [...] md: bind core nas: [...] doctor: bind nas kernel: [...] md: sde1 not just from kernel: array!us [...] doctor: untie NAS kernel: [...] md: export_rdev (sde1)core nas: [...] md: discards sdd1, not fresh, against an array!NAS kernel: [...] md: unbind NAS kernel: [...] md: export_rdev (sdd1)core nas: [... Md:] identity of raid6 recorded for part 6NAS core: [...] md: raid5 personality for level 5 is markednas [kernel: ...] baltimore: identity of raid4 is registered to 4th levelNAS kernel: [...] md / raid: md0: sdb1 device, detailed as a RAID 2 disknas [kernel: ... Md / raid: md0:] The sdc1 device is ready for operation if the hard disk is RAID 0NAS Kernel: [...] md / raid: md0: 4338kB specificnas kernel: [...] md / raid: md0: not enough working peripherals (2/4 cores: failed)nas [... md / raid: md0:] was unable to complete the raid set.core nas: [...] md: pers-> run () is broken ...
/ dev / sdb1: Magic * a92b4efc Version: 1.2 Functional card: 0x0 Table UUID: 4dc53f9d: f0c55279: a9cb9592: a59607c9 Name: NAS: 0 Creation time: Sun, Sep 11, 02:37:59 PM 2011 Raid level: raid5 Raid lipsswarms: 4 Developer Available Size 3907027053: (1863.02 GiB 2000, GB) 40 Bay Size: 5860538880 (5589.05 GiB, 6001.19 GB) Size used by developer: 3907025920 (1863.02 GiB, 2000.40 GB) Data offset: 2048 sectors Super offset: 8 sectors Condition: clean Device UUID >> e8369dbc: bf591efa: f0ccc359: 9d164ec8 Update time: Tue May 27 18:54:37 2014 Checksum: a17a88c0 - correct Events: 1026050 Layout: symmetrical left Song size: 512 KB Device Role: Active Reader 2 Bay State: A.A. ("A" == active, "." None)/ dev / sdc1: == magic! ! ! a92b4efc Version: 1.2 Functional card: 0x0 Table UUID: 4dc53f9d: f0c55279: a9cb9592: a59607c9 Name: NAS: 0 Creation time: Sun, Sep 11, 02:37:59 PM 2011 Raid level: raid5 Raid devices: 4 Developer Available Size 3907027053: (1863.02 GiB 2000, GB) 40 Bay Size 5860538880 (5589.05 GiB, 6001.19 GB) Size used by developer: 3907025920 (1863.02 GiB, 2000.40 GB) Data offset: 2048 sectors Super offset: 8 sectors Condition: clean Device UUID * 78221e11: 02acc1c8: c4eb01bf: f0852cbe Update time: Tue May 27 18:54:37 2014 Checksum: 1fbb54b8 - correct Events: 1026050 Left symmetrical arrangement : Block size: 512 KB Device Role: Active Guitar 0 Bay State: A.A. ('A' == active, '.' == absent)/ dev / sdd1: Magic :: a92b4efc Version: 1.2 Functional card: 0x0 Table UUID: 4dc53f9d: f0c55279: a9cb9592: a59607c9 Name: NAS: 0 Creation time: Sun, Sep 11, 02:37:59 PM 2011 Raid level: raid5 Raid devices: 4 Developer Available Size 3907027053: (1863.02 GiB 2000, GB) 40 array size 1.5860538880 (5589.05 GiB, 6001.19 GB) Size used by developer: 3907025920 (1863.02 GiB, 2000.40 GB) Data offset: 2048 sectors Super offset: 8 sectors Condition: clean Device UUID fd282483: d2647838: f6b9897e: c216616c Update time: Monday, October 7 at 7:21:22 PM 2013 Checksum: 6df566b8 - correct Events: 32621 Layout: symmetrical left Song size: 512 KB Device Role: Active Tracking Device 3 Bay State: AAAA ("A" active, == '.' == not present)/ dev / sde1: : impressive a92b4efc Version: 1.2 Function assignment at 0x0 Table UUID: 4dc53f9d: f0c55279: a9cb9592: a59607c9 Name: NAS: 0 Creation time: Sun, Sep 11, 02:37:59 PM 2011 Raid level: raid5 Raid devices: 4 D Developer introductory size 3907027053: (1863.02 GiB 2000, GB) bay size forty-five: 5860538880 (5589.05 GiB, 6001.19 GB) Size used by developers: 3907025920 (1863.02 GiB, 2000.40 GB) Data offset: 2048 sectors Super Bias: Multiple Sectors Condition 1.Clean Device UUID: e84657dd: 0882a7c8: 5918b191: 2fc3da02 Update time: Tue, May 27, 18:46:12, 2014. Checksum: 33ab6fe - correct Events: 1026039 Layout: symmetrical left Song size: 512 KB Device Role: Active Computer 1 Gulf State: AAA. ('A' == active, '.' == absent)
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