All Questions
Tagged with hard-drive centos
87 questions
0
votes
0
answers
20
views
Centos 7.4, dev/vda1 is 100% [duplicate]
My VPS on DO now has an issue of dev/vda1 is 100% since around 3 months ago, at that time, I did poweroff & reboot then disk spaced freed.
But the thing rans into some bigger issue since 1 week ...
- 21
2
votes
0
answers
142
views
How to restore RAID1 configuration with 2 different HardDrives in CentOS-7
We have a server (HP ProLiant ML10 Gen 9) that came with Two Identical Hard disks. It was assumed that the server supports hardware RAID 1 (Mirror), and the CentOS-7 was installed in it. But later we ...
- 31
1
vote
0
answers
229
views
what are the kernel messages about "Disabling DIF Type 2 protection" means
On our RHEL 7.2 server we saw a strange kernel messages with lines as:
Disabling DIF Type 2 protection
***10DIGITS*** 512-byte logical blocks: (2.00 TB/1.81 TiB)
Above messages are relevant for all ...
- 709
0
votes
1
answer
510
views
Properly Extend virtual volumes on a CentOS VM, new space in /dev/cl/ not occupied by /dev/mapper
I have a CentOS VM (on a windows host, managed with virtualbox) that ran out of disk space.
I extended the virtual disk size, then used gparted to assign the new space to the existing partition
Then I ...
- 101
0
votes
0
answers
195
views
linux + how to extend sdd1 partition based on that sdd disk have enough space
We have rhel server 7.2 version ( VM machine ) with sdd disk
sdd disk have parted partition sdd1 , and our goal is to increase the sdd1 partition to 10g from current 1K size
From
lsblk
sdd ...
- 709
0
votes
0
answers
39
views
Disk Partition Managment
my server (Centos with Plesk) is running out of disk space.
Width cfdisk I've noticed there's a partition with free space
Can I maximize the space in partition sda1 to this free space? if so, how do ...
1
vote
1
answer
137
views
Sudden spike in Centos free disk space
I have a VPS with 120GB of total disk capacity. In the past couple of months, our usage surged and since we have been within 95% of used disk space.
Anyhow, a couple of days ago, I've identified large ...
- 153
1
vote
1
answer
420
views
Is my server drive on SATA2 or SATA3 based on this output?
smartctl output:
# smartctl -a /dev/sda | grep SATA
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
dmesg output (empty):
# dmesg | grep SATA
hdparm output:
# hdparm -I /dev/sda | grep ...
user555159
0
votes
1
answer
1k
views
How to mount a RAID array on a Linux server if it does not appear to be listed?
I am helping to administer two CentOS 5 servers, on the "user" side of things. A RAID 1 array and a separate single hard drive were recently added by IT support. According to the IT support, both of ...
- 113
0
votes
1
answer
4k
views
Refresh disks on live system without rebooting
I have 4 drives in a server. This is a live server. One of these drives I replaced with a different drive and changed the mount point for the new drive so as to avoid confusion.
After completing the ...
user555159
1
vote
1
answer
457
views
Possible to extend /DEV/SDB1 on Centos machine without downtime/data loss?
on CentOS6 I would like to extend /dev/sdb1 to get more free space:
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_www-lv_root
18G 2.9G 14G 18% ...
- 11
4
votes
1
answer
2k
views
RAID10 array check slow, and slowing
I run a new CentOS 7 machine. Linux runs on 2x SSD setup, and I also have 4x SAS drives setup in software RAID10. The RAID10 array is large, 4x 12TB drives, so 24TB usable.
File system is: ext4
Now ...
- 1,481
4
votes
1
answer
5k
views
While RAID1 is resyncing after create, can i write files to it immediately?
I searched but i just found this.
How to interrupt software raid resync?
My question is
can i write files to my raid1 device while...
[root@centos ~]# cat /proc/mdstat
Personalities : [raid1]
...
- 63
-2
votes
1
answer
75
views
Webserver with merged disks and backup optimal Solution
I have to set up an HPE server GEN10 with 2x240GB SSD & 3x1.2TB HDDs as a webserver.
Client needs a production repo (live on apache folder), multiple development repos and backup.
My idea is
1) ...
2
votes
1
answer
2k
views
RAID partition cannot be mounted, not assigned partition number, after reboot
Problem:
I have a CentOS 7.5 server with an array of 4x 3TB WD Reds in hardware RAID 5. The RAID volume has a single EXT4 partition on it. After a recent reboot of the server, the server can no ...
- 202
1
vote
0
answers
189
views
Whether I can download the data of `/dev/mapper/VolGroup-lv_home`?
I can not mount the /dev/mapper/VolGroup-lv_home to /home directory.
but now whether I can download the data of /dev/mapper/VolGroup-lv_home?
I can not mount a lv partition to a directory, whether I ...
- 117
2
votes
2
answers
997
views
Why same disk model but different capacity?
I'm trying to replace an old disk on a JBOD that I inherited. I bought exactly the same model but it seems it has a different capacity (resulting from different number of disk sectors), preventing me ...
- 399
0
votes
0
answers
94
views
Cannot execute certain commands on SATA3 3.5" external USB disk
I mount a SATA3 3.5" disk with a USB to Sata3 cable.
When I connect the disk, my CentOS7 recognize it:
$ dmesg -T | grep USB
...
[Mon Nov 5 14:38:36 2018] usb 2-5: new SuperSpeed USB device number 3 ...
- 1,019
17
votes
3
answers
105k
views
how to increase the size for /dev/mapper/centos-root?
My current settings are as below, where the /dev/mapper/centos-root partition is almost full.
Looks like this partition is on disk /dev/mapper/centos-root.
but there is another disk /dev/vda , which ...
- 311
0
votes
1
answer
478
views
CentOS 7 disk space [duplicate]
I have a Centos7 server in which when executing the command df -h the occupied disk space is of 90GB but if I do a du -sh / * the sum of all directories does not correspond to 90GB, in this case it is ...
- 3
10
votes
3
answers
14k
views
How to make a RAID disk light blink (on Linux)?
I have a RAID10 hot-swap disk that is about to fail (according to smartctl -a /dev/sdc. The disk is mounted in a rack 4U server).
Unfortunately, the disks are not marked, so I'd like to get the disk ...
- 1,019
0
votes
1
answer
998
views
CentOS 7 and RAID setup
CentOS 7.1 question for Everyone. How would you install a system if it needs to have a standalone disk for all the main folders and an array of 2 disks in RAID1 for a custom folder mount?
Create the ...
- 1,106
0
votes
1
answer
2k
views
hardisk or network bottleneck?
Im trying to determine which hardware causing the bottleneck of the server, the server is mainly used for serving video files on a heavy traffic site.
i have dstat output look like below (will get up ...
- 153
1
vote
1
answer
3k
views
kernel exception action 0x6 frozen failed command: FLUSH CACHE
Since a few months, our server periodically hangs for a minute or two. The logs show these errors:
May 15 20:01:02 www kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 15 ...
- 133
1
vote
2
answers
13k
views
Root volume /dev/mapper/centos-root full [duplicate]
On one of my host, i have /dev/mapper/centos-root reporting almost full (99%), here is output of df -h.
==
[root@LA3QSSD02-20217 /]# df -h
Filesystem Size Used ...
- 101
6
votes
7
answers
10k
views
VPS: How can I update the available hard disk space after upgrade?
I made an upgrade of a VPS hosted on OVH, specifically from VPS CLOUD 1 to VPS CLOUD 2 that have 25gb more of previous solution (50gb total).
On this VPS is installed CentOS 7.2.1511
There is the ...
- 121
0
votes
0
answers
368
views
lsituil basic usage : identify broken disk
We have one disk broken on a server (according to nagios).
I would like to get information about the broken disk.
I tried to type lsiutil -s.
Unfortunately the output doesn't show which physical ...
- 1,292
0
votes
0
answers
385
views
CentOS df misreports free disk space (due to mounted volume?)
I have a server with an LVM volume mounted under /mnt. When running df -h to check free disk space, it appears to show the space consumed under /mnt as being used in /:
[root@monitor spool]# df -h
...
- 277
0
votes
1
answer
688
views
Full /usr directory, but can only account for 1/8th of space
Having trouble finding the files causing space issues on my server. Running the "df -h" command results in:
/dev/xvda1 ext3 4.0G 693M 3.3G 18% /
/dev/mapper/vg00-usr ext4 8.9G 8.9G ...
- 121
1
vote
1
answer
5k
views
CentOS 6: SATA link down when scanning for unused drives
I recently inherited a CentOS 6 server with 8 installed hard drives. 6 of these drives were going to be configured as an LVM, but never got that far. The drives are installed and, from what I can tell,...
- 153
1
vote
0
answers
1k
views
Read only file system after every reboot - centos
Some time ago I got disk full problem and after that everytime I reboot my centos server, the system loads with read only system files.
Running mount -o remount,rw / will solve my problem.
But ...
- 11
1
vote
1
answer
3k
views
Why my disk elevator is set to "deadline"
I have CentOS 6.x Linux server with kernel 2.6.32-573.8.1.el6.x86_64.
I did some checks today and I found that disk elevator is "deadline".
[root@srv ~]# cat /sys/block/sda/queue/scheduler
noop ...
- 902
-2
votes
1
answer
106
views
External Drives on RAID/LVM configuration
I had 2 drives corrupted and now replaced with new ones sitting on RAID 0. After installing the new drives I have attached the 2 old corrupted drives via usb to retrieve data from them. These 2 drives ...
- 46
4
votes
1
answer
18k
views
S.M.A.R.T. error , 190 Airflow_Temperature_Cel , Is it a risk?
Please, I received this report by S.M.A.R.T
Checking /dev/sdb....
Errors:
Please note the following marginal Attributes:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED ...
- 61
4
votes
2
answers
6k
views
Centos 7 server can't see Disk Array disks
Context
I have a server freshly provisionned with CentOS 7, connected to a Disk Array with a Fibre Channel connection.
I want to mount the Disk Array's disks on my server's file system, and then ...
-1
votes
1
answer
3k
views
How to access a system with write permission after file system check fails?
I created three new partitions, but after a reboot, the system is being dropped to a shell:
/dev/mapper/group-newpartition: clean, 11/655360 files, 276620/2621440 blocks [FAILED]
An error occurred ...
- 239
5
votes
3
answers
93k
views
Can't mount disk (VFS: Can't find ext4 filesystem) [closed]
Tried to mount a disk (hardware raid) but failed.
#mount -t ext4 /dev/sda /data
mount: wrong fs type, bad option, bad superblock on /dev/sda,
missing codepage or helper program, or other ...
- 171
1
vote
1
answer
3k
views
Abnormal CPU usage during Disk Write Operations
I have a decent CentOS 6.5 dedicated host (CentOS 6.5/E3-1230 3.2Ghz Quad Core + HT/16GB/Software Raid 1 SATA II/WD2503ABYX/ext4) with the default CentOS kernel and "elevator=deadline" in grub.
I/O ...
- 1,975
-2
votes
2
answers
252
views
CentOS remount a used disk [closed]
I have a used disk full of video files which is 1TB in size and is mounted on /usr/local/nginx/html. I want to remount it on /disk1 for naming purposes. If I remount it would the files still be intact?...
- 159
0
votes
4
answers
2k
views
Process running slow with logging in Dell R720 server
We bought a Dell R720 server and installed CentOS 6.3 on it. We have another older Dell server which also has CentOS 6.3 installed in it. When we ran a simple benchmark for disk performance the older ...
1
vote
1
answer
1k
views
Disk access slow
I have a process running in a CentOS 6.3 server. When logging is turned on, the process slows down drastically. The logs are being written to /tmp
[root@localhost src]# hdparm -I /dev/sda
/dev/sda:
...
- 59
2
votes
2
answers
2k
views
Keeping USB backup drive from sleeping while mounted?
Once every few days, seemingly at random, our backup to an external USB hard disk fails on our hp DL380 G5 server running CentOS 6.4 64-bit. If I cd /mnt/backup and run ls it complains ls: reading ...
- 994
29
votes
5
answers
60k
views
CentOS thinks Disk is busy, can't mount or fsck
I'm a longtime user, and first time question submitter. I've spent a full day searching this and many other sites for a solution, but I must resort to requesting assistance to resolve my situation.
...
- 393
0
votes
1
answer
57
views
Are these disk errors cause for concern?
Every day I get an email from the logwatch program on our company web server. The server is running CentOS 6 and uses Apache, MySQL and PHP to serve web pages. It is a dedicated piece of hardware (not ...
0
votes
1
answer
76
views
File access from CentOS new HDD by web user
I am using Centos 6.3 final and Apache 2.2.15. I recently installed a new HDD and created a symlink within my website's root directory so that my script can write big files to it and uses can access ...
- 1
0
votes
1
answer
64
views
Should getfacl be running constantly and is it normal for it to be using greater than 90% of available disk I/O?
I've recently been getting alerts from our server monitoring software about greater than 90% disk I/O utilisation.
I installed iotop and there are three instances of the following process showing up ...
- 323
0
votes
1
answer
80
views
Server upgrade configuration - raid vs. multiple drives vs. combo raid / backup
We're upgrading our Linux box, and moving from CentOS (quad core AMD, 8GB RAM, SATA drive) to RedHat OS (dual quad core Xeon, 8GB RAM, SAS drives) and was wondering... what will provide the best ...
- 155
1
vote
1
answer
2k
views
How to detect hard disk failure?
So, one of my servers has a hard disk failure. It's running software RAID, the system locked up and according to /proc/mdstat (and /var/log/messages), it's really down:
Personalities : [raid1]
md2 : ...
- 1,503
3
votes
1
answer
6k
views
HDD Health tool for CentOS? [closed]
Does anyone know some good tool for checking HDD failure in Cent OS (Red Hat Systems) without downtime.
And tell me how to use it.
Thanks.
- 375
1
vote
1
answer
10k
views
Write-error on swap-device, Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
My root server at 1&1 was unresponsive on HTTP and SSH, so I logged into the serial console . It flooded my connection with endless error messages like quoted below.
I initiated a reboot and now ...
- 145