我添加了 2 个旧的 2TB HDD。
我使用这个脚本为我的团队创建了分区：
#!/bin/bash
diskGB="$3"
sliceGB=1000
partsize=$(($sliceGB*1000*1000*1000/1024/1024 - 1))
for ((i=1; i <= $(($diskGB/$sliceGB)); i++))
do
sudo parted -a optimal -- "$1" mkpart md"$i"-"$2" $(($i+($i-1)*$partsize))MiB $(($i+$i*$partsize))MiB
done
sudo parted "$1" print free
但即使重启后，其中一个硬盘的分区也没有显示出来。没有 /dev/sdb1 或 /dev/sdb2。
sudo gdisk /dev/sdb
GPT fdisk (gdisk) version 1.0.3
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Command (? for help): p
Disk /dev/sdb: 3907029168 sectors, 1.8 TiB
Model: WDC WD20EARX-00P
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): 967CBFE5-86B1-4F44-8F23-8925A09A30E8
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 2048, last usable sector is 3907029134
Partitions will be aligned on 2048-sector boundaries
Total free space is 782479 sectors (382.1 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1953124351 931.3 GiB 8300 md1-3
2 1953126400 3906248703 931.3 GiB 8300 md2-3
sudo mdadm /dev/md1 --add /dev/sd sda sda2 sda4 sdc sdc2 sdc4 sdd1 sdd3 sde sde2 sda1 sda3 sdb sdc1 sdc3 sdd sdd2 sdd4 sde1
有时使用 gdisk 写入后分区会出现，但随后分区很忙
sudo mdadm /dev/md1 --add /dev/sd
sda sda2 sda4 sdb1 sdc sdc2 sdc4 sdd1 sdd3 sde sde2
sda1 sda3 sdb sdb2 sdc1 sdc3 sdd sdd2 sdd4 sde1
sudo mdadm /dev/md1 --add /dev/sdb1
mdadm: Cannot open /dev/sdb1: Device or resource busy
jokergermany@nas:~$ sudo mdadm /dev/md1 --add /dev/sdb2
mdadm: Cannot open /dev/sdb2: Device or resource busy
有什么建议吗？
sudo smartctl -a /dev/sdb
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-46-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Green
Device Model: WDC WD20EARX-00PASB0
Serial Number:
LU WWN Device Id: 5 0014ee 25c303777
Firmware Version: 51.0AB51
User Capacity: 2.000.398.934.016 bytes [2,00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Fri Mar 29 12:31:15 2019 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
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: (41460) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 399) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3035) SCT Status 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 0x002f 200 200 051 Pre-fail Always - 1
3 Spin_Up_Time 0x0027 166 157 021 Pre-fail Always - 6700
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 511
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 058 058 000 Old_age Always - 30905
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 372
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 78
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 1158275
194 Temperature_Celsius 0x0022 118 098 000 Old_age Always - 32
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 3
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.
grep sdb /var/log/syslog
Mar 29 06:41:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 07:11:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 07:41:43 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 08:11:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 08:41:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 09:11:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 09:41:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 10:11:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 10:41:43 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 11:11:42 nas smartd[1534]: Device: /dev/sdb [SAT], open() failed: No such device
Mar 29 11:21:29 nas kernel: [ 2.706955] sd 2:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)
Mar 29 11:21:29 nas kernel: [ 2.706960] sd 2:0:0:0: [sdb] 4096-byte physical blocks
Mar 29 11:21:29 nas kernel: [ 2.706974] sd 2:0:0:0: [sdb] Write Protect is off
Mar 29 11:21:29 nas kernel: [ 2.706975] sd 2:0:0:0: [sdb] Mode Sense: 00 3a 00 00
Mar 29 11:21:29 nas kernel: [ 2.706991] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Mar 29 11:21:29 nas kernel: [ 3.201454] sdb: sdb1 sdb2
Mar 29 11:21:29 nas kernel: [ 3.201790] sd 2:0:0:0: [sdb] Attached SCSI disk
Mar 29 11:21:30 nas smartd[1603]: Device: /dev/sdb, type changed from 'scsi' to 'sat'
Mar 29 11:21:30 nas smartd[1603]: Device: /dev/sdb [SAT], opened
Mar 29 11:21:30 nas smartd[1603]: Device: /dev/sdb [SAT], WDC WD20EARX-00PASB0, S/N:WD-WMAZA8492756, WWN:5-0014ee-25c303777, FW:51.0AB51, 2.00 TB
Mar 29 11:21:30 nas smartd[1603]: Device: /dev/sdb [SAT], found in smartd database: Western Digital Green
Mar 29 11:21:33 nas smartd[1603]: Device: /dev/sdb [SAT], is SMART capable. Adding to "monitor" list.
Mar 29 11:21:33 nas smartd[1603]: Device: /dev/sdb [SAT], state read from /var/lib/smartmontools/smartd.WDC_WD20EARX_00PASB0-WD_WMAZA8492756.ata.state
Mar 29 11:21:33 nas smartd[1603]: Device: /dev/sdb [SAT], open device worked again, warning condition reset after 1 email
Mar 29 11:21:34 nas smartd[1603]: Device: /dev/sdb [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 164 to 166
Mar 29 11:21:34 nas smartd[1603]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 116 to 118
Mar 29 11:21:34 nas smartd[1603]: Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD20EARX_00PASB0-WD_WMAZA8492756.ata.state
Mar 29 11:35:54 nas kernel: [ 904.673644] sdb: sdb1 sdb2
Mar 29 11:51:35 nas smartd[1603]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 118 to 117
Mar 29 12:21:36 nas smartd[1603]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 117 to 118
答案1
mdadm 发现了一个旧的 raid 签名并使用了 sdb...
cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md3 : active raid5 sde1[3] sda3[0] sdd3[2]
1952858112 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
bitmap: 0/8 pages [0KB], 65536KB chunk
md2 : active raid5 sda2[0] sdd2[2]
976429056 blocks super 1.2 level 5, 512k chunk, algorithm 2 [2/2] [UU]
bitmap: 0/8 pages [0KB], 65536KB chunk
md1 : active raid5 sda1[0] sdd1[1]
976429056 blocks super 1.2 level 5, 512k chunk, algorithm 2 [2/2] [UU]
bitmap: 0/8 pages [0KB], 65536KB chunk
md4 : active raid5 sde2[3] sda4[0] sdd4[2]
1952858112 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
bitmap: 0/8 pages [0KB], 65536KB chunk
md127 : inactive sdb[1](S)
1953514496 blocks
unused devices: <none>
解决方案：
sudo mdadm --stop /dev/md127
sudo mdadm --zero-superblock /dev/sdb