我想将磁盘添加到软件RAID 10。 但是，该磁盘以前是另一台计算机上RAID的成员，现在不再可用，因此该磁盘正在等待回收。
但是，我所做的任何事情都不允许我添加磁盘而不会失败。
我dd磁盘（sudo dd if=/dev/zero | pv | sudo dd of=${disk}1 bs=10M iflag=fullblock count=3000）并在磁盘上创建分区（sudo parted -a optimal $disk mklabel gpt ; sudo parted -a optimal $disk mkpart primary 0% 100% ; sudo mkfs.ext4 ${disk}1）
但是
$ sudo mdadm --add /dev/md0 /dev/sdk
mdadm: Cannot open /dev/sdk: Device or resource busy
$ sudo mdadm --add /dev/md0 /dev/sdk1
mdadm: Cannot open /dev/sdk1: Device or resource busy
$ sudo mdadm --zero-superblock /dev/sdk
mdadm: Couldn't open /dev/sdk for write - not zeroing
$ sudo wipefs --all /dev/sdk
wipefs: error: /dev/sdk: probing initialization failed: Device or resource busy
lsof没有显示任何保存磁盘的过程，未安装磁盘。
知道如何将磁盘添加到RAID吗？
添加的数据：
$ sudo fdisk -l /dev/sdk
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sdk: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: gpt
Disk identifier: C383DE32-D060-4183-AA7B-F97441977A81
# Start End Size Type Name
1 2048 5860532223 2.7T Microsoft basic primary
$ sudo smartctl --all /dev/sdk
smartctl 6.5 2016-05-07 r4318 [x86_64-linux-3.10.0-957.12.2.el7.x86_64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Toshiba 3.5" DT01ACA... Desktop HDD
Device Model: TOSHIBA DT01ACA300
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (22508) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 376) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always - 0
2 Throughput_Performance 0x0005 139 139 054 Pre-fail Offline - 70
3 Spin_Up_Time 0x0007 136 136 024 Pre-fail Always - 422 (Average 420)
4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 19
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 124 124 020 Pre-fail Offline - 33
9 Power_On_Hours 0x0012 097 097 000 Old_age Always - 26047
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 19
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 668
193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 668
194 Temperature_Celsius 0x0002 187 187 000 Old_age Always - 32 (Min/Max 19/42)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.