hetzner и размер диска

cat /etc/redhat-release покажите.

Так же покажите

cat /proc/mdstat

и cat /etc/redhat-release

Для увеличения раздела достаточно

lvextend -r -L +200G /dev/mapper/vg0-vol--root

свой раздел подставите сами.

Потом xfs_growfs /www

вот что у меня

cat /proc/mdstat

[root@static log]# cat /proc/mdstat

Personalities : [raid1]

md0 : active raid1 sdb1[1] sda1[0]

524224 blocks super 1.0 [2/2] [UU]

md1 : active raid1 sdb2[1]

1952987072 blocks super 1.0 [2/1] [_U]

unused devices: <none>

[root@static log]#

У вас один диск выпал из массива. Покажите

smartctl -a /dev/sda

smartctl -a /dev/sdb

И пока НИКАКИХ действий не предпринимайте. Не нулевая вероятность, что жестким дискам приходит каюк. Судя по тому, что вы промахнулись в системе репутации на форуме - невнимательность у вас бывает. Ну и делайте внеочередной бэкап.

[root@static log]# smartctl -a /dev/sda

-bash: smartctl: command not found

You have mail in /var/spool/mail/root

[root@static log]# smartctl -a /dev/sdb

-bash: smartctl: command not found

yum install smartmontools и потом команда появится.

вот инфа dffffff

[root@static log]#  smartctl -a /dev/sda

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.12.1.el7.x86_64] (local build)

Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org



=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Re

Device Model:     WDC WD2000FYYZ-01UL1B1

Serial Number:    WD-WCC1P1135916

LU WWN Device Id: 5 0014ee 209a59d5d

Firmware Version: 01.01K02

User Capacity:    2,000,398,934,016 bytes [2.00 TB]

Sector Size:      512 bytes logical/physical

Rotation Rate:    7200 rpm

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: 6.0 Gb/s)

Local Time is:    Wed Apr  8 10:25:58 2020 CEST

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:                (25440) 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:        ( 277) minutes.

Conveyance self-test routine

recommended polling time:        (   5) minutes.

SCT capabilities:              (0x70bd) 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     0x002f   200   200   051    Pre-fail  Always       -       0

  3 Spin_Up_Time            0x0027   100   253   021    Pre-fail  Always       -       0

  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       5

  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   032   032   000    Old_age   Always       -       49673

 10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0

 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0

 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       5

183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0

192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       1

193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       23

194 Temperature_Celsius     0x0022   119   113   000    Old_age   Always       -       31

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      -       0



SMART Error Log Version: 1

No Errors Logged



SMART Self-test log structure revision number 1

Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error

# 1  Extended offline    Completed without error       00%      7266         -

# 2  Extended offline    Completed without error       00%      7190         -

# 3  Extended offline    Completed without error       00%      1715         -

# 4  Extended offline    Completed without error       00%      1686         -

# 5  Extended offline    Completed without error       00%      1615         -

# 6  Short offline       Completed without error       00%      1611         -

# 7  Short offline       Completed without error       00%      1611         -

# 8  Extended offline    Completed without error       00%         4         -



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.



[root@static log]#  smartctl -a /dev/sdb

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.12.1.el7.x86_64] (local build)

Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org



=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Re

Device Model:     WDC WD2000FYYZ-01UL1B1

Serial Number:    WD-WCC1P1134557

LU WWN Device Id: 5 0014ee 2b451063e

Firmware Version: 01.01K02

User Capacity:    2,000,398,934,016 bytes [2.00 TB]

Sector Size:      512 bytes logical/physical

Rotation Rate:    7200 rpm

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: 6.0 Gb/s)

Local Time is:    Wed Apr  8 10:26:02 2020 CEST

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:  (0x84) Offline data collection activity

                                        was suspended by an interrupting command from host.

                                        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.





[root@static log]#

продолжение

Total time to complete Offline
data collection:                (25800) 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:        ( 281) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x70bd) 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   100   253   021    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       5
  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   028   028   000    Old_age   Always       -       53253
 10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       5
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       1
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       25
194 Temperature_Celsius     0x0022   119   113   000    Old_age   Always       -       31
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      -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%      7267         -
# 2  Extended offline    Completed without error       00%      7190         -
# 3  Extended offline    Completed without error       00%      1715         -
# 4  Extended offline    Completed without error       00%      1686         -
# 5  Extended offline    Completed without error       00%         4         -

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.

[root@static log]#

smartctl -t long /dev/sdb

smartctl -t long /dev/sda

Часа через 4 когда проверки завершатся выложить снова

smartctl -a /dev/sda

smartctl -a /dev/sdb

Если ошибок не будет - вернём диск в массив и дождемся синхронизации, после чего можно будет увеличить размер раздела.