将 RAID 驱动器从 NAS 机箱移至 ubuntu 16.04 - 一个驱动器速度极慢

将 RAID 驱动器从 NAS 机箱移至 ubuntu 16.04 - 一个驱动器速度极慢

我已将我的两个 raid1 驱动器从我的TrendNet TN-200 NAS机箱安装全新 Ubuntu 16.04.3 LTS。其中一个驱动器运行良好,但另一个驱动器运行速度极慢。

以下是一些统计数据(检查重建的速度和完成时间):

cat /proc/mdstat                                                                

Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb2[0] sdc2[2]
      2927642924 blocks super 1.0 [2/1] [U_]
      [>....................]  recovery =  1.2% (35496384/2927642924) finish=20005.6min speed=2409K/sec

sudo mdadm -D /dev/md1
/dev/md1:
    Version : 1.0
  Creation Time : Thu Jan  1 04:04:20 2015
 Raid Level : raid1
 Array Size : 2927642924 (2792.02 GiB 2997.91 GB)
 Used Dev Size : 2927642924 (2792.02 GiB 2997.91 GB)
 Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent

Update Time : Wed Oct 18 16:26:25 2017
      State : clean, degraded, recovering
Active Devices : 1
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 1

 Rebuild Status : 1% complete

       Name : 1
       UUID : 52c46d6e:fb57141b:bde3b1d8:a4dae5d6
     Events : 137429

Number   Major   Minor   RaidDevice State
   0       8       18        0      active sync   /dev/sdb2
   2       8       34        1      spare rebuilding   /dev/sdc2

我尝试了几种不同的 SATA 电缆和不同的 SATA 端口,结果相同。我还尝试使用 smartctl 运行了几次简短测试:

smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-97-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  
LBA_of_first_error
# 1  Short offline       Self-test routine in progress 10%     21537         -
# 2  Short offline       Interrupted (host reset)      00%     21537         -
# 3  Short offline       Aborted by host               10%     21534         -

任何帮助都将不胜感激。我对 Linux 还不太熟悉,但我知道的足以应付危险。

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