-5
votes
1answer
44 views

CentOS — Move Everything to Another HDD & Use as Default [closed]

I just noticed that my server is using a 20GB(something around that) HDD by default, as apposed to my 500GB HDD. Here's the output for df -h Filesystem Size Used Avail Use% Mounted on rootfs ...
0
votes
1answer
110 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: ...
0
votes
1answer
36 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 ...
0
votes
1answer
44 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 ...
1
vote
1answer
510 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
votes
1answer
624 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.
0
votes
1answer
1k 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 ...
0
votes
1answer
595 views

Ext4 self errors after some time on CentOS 5.8 64-bit

I get such warnings in dmesg: EXT4-fs error (device md2): mb_free_blocks: double-free of inode 0's block 602619328(bit 15808 in group EXT4-fs error (device md2): mb_free_blocks: double-free of inode ...
1
vote
3answers
488 views

Using `dd` command to test performance on different partitions

I'm trying to setup a web application on the Azure Preview Portal. I've created a Linux Centos 6.2 machine from the Azure VM gallery and attached some disks to it. df -h gives me this: Filesystem ...
1
vote
1answer
544 views

Are intermittently slow disk read speeds ever caused by the OS itself?

I'm noticing intermittently slow disk read/write speeds on my CenTOS 5.x VM. Sometimes hdparm will report: /dev/sda3: Timing buffered disk reads: 6 MB in 3.03 seconds = 2.04 MB/sec Other ...
3
votes
1answer
129 views

Uneven utilization of disks in xfs-formatted logical volume

We have a backup server with 66TB of available space, set up like so: 12 6TB RAID10 arrays -> 12 PVs -> 1 VG -> 1 LV -> xfs This filesystem is used exclusively for backups (through BackupPC). It ...
1
vote
3answers
338 views

Extremely High Hard Disk Reading Usage

My VPS configuration is as follows: H.D.D = 25GB RAM = 256MB OS : CentOS 5.5 I received an email from server provider showing that my VPS H.D.D read usage is 137GB in one day. I have installed ...
1
vote
2answers
3k views

Why am I getting “Input/output error during read on /dev/sda” during a CentOS text-mode installation?

I'm trying to install CentOS 5.7 on an HP Proliant DL380 G5 (with an HP P400 Smart Array RAID controller) and am getting the following error during the text mode installer: ERROR: pdc: reading ...
2
votes
2answers
416 views

Centos server migrate to larger disk

I have a centos server that runs a whm/cpanel with mysql, apache, bind and email daemons. The server now has 95% of the server disk full. It is a dell poweredge 1950 with 2 spaces for SAS disks. I ...
0
votes
0answers
158 views

Disk or CPU/RAM failure ? I can't figure it out

i'm having big trouble accessing my production servers (runnung xen); i recently bought brand new Western Digital (WD5000AAKX 500Gb) drives to replace the old drives; re-installed the system as it ...
0
votes
2answers
600 views

CentOS 5 in VirtualBox 4.1 shows 0 as disk free space

I just installed a brand new centos 5.8 64bit on virtualbox 4.1.10 with guest additions installed I gave it a dynamically allocated 8gb hard drive. It is currently using only 3.9gb of that. However, ...
3
votes
2answers
222 views

CentOS expanding directory

I currently have a file server, and all the files are installed in /usr/local/nginx/html/. The setup is one hard disk with 1 TB of data. This 1 TB of storage is all used up. I asked the ...
1
vote
1answer
172 views

CentOS Adding Hard Disks

I currently have a server with 500GB storage (2 physical disks, raid 0) and its already full. I've asked my provider for an upgrade of additional 1TB storage (2 physical, raid 0). These are all ...
3
votes
2answers
985 views

Move /var to new set of disks

I currently only have remote access to this CentOS box, I need to move /var form the primary RAID to a new set of disks that was installed with more space, My current thoughts on how to accomplish ...
5
votes
1answer
2k views

Can I get the model information for my hard drives with a command in Linux?

Is there a Linux command that would allow me to get model information for hard drives? I'm running CentOS. I want to compare the hard drives on two VPS providers that I use.
1
vote
1answer
827 views

How to enable SATA in Centos 5?

I have a centos 5 linux box which is currently running off an IDE drive. I want to install a couple of SATA drives as backup drives for now. I have googled that there can be complications with SATA ...
1
vote
1answer
388 views

I can't umount a partition on Centos

I had a drive fail of sorts. Now when I try to umount it is says the device is busy despite the device not being in /dev/ Any ideas how I can umount it.
0
votes
2answers
54 views

Swap hardware on Centos5 Drive

I have a local file/development server running Centos5. The box's hardware is getting quite old, but the drive is still usable. I have a few extra boxes with better hardware (cpu, motherboard, mem, ...
-2
votes
2answers
322 views

Change hard drive being used?

I'm going to have another hard drive installed in my server, how can I make it so files are stored on the second hard drive as oppose to the first one, but have the files still accessible as usual on ...
0
votes
2answers
353 views

Confirming a Hard Drive Write Error

I've been having issues with a hard drive in a dedicated CentOS server with the following symptoms: Random MySQL Database Corruption -- Tables have been corrupted and repaired multiple times. ...
4
votes
2answers
1k views

Harddrive issue “read-only”

I'm having an issue where when i mount my partition a few hours later it becomes read-only. Currently i run: fuser -m -k /dev/sdb1 umount /dev/sdb1 fsck -y /dev/sdb1 mount /dev/sdb1 That allows me ...
1
vote
1answer
2k views

Writing on an external USB hard disk is very slow on my local Linux CentOS server

I have this external harddrive: _ Buffalo Ministation TurboUSB HD-PS250U2 250 GB _ just formatted using ext3 _ 250 GB _ interface USB2 _ SATA 150 internal interface _ no hardware encryption _ full ...
2
votes
6answers
15k views

Check for hard disk errors / signs of failure on CentOS Server

What's the best way to check for HDD errors and early signs of failure on CentOS?
6
votes
4answers
1k views

My linux server takes more than an hour to boot. Suggestions?

I am building a CentOS 5.4 system that boots off a compact flash card using a card reader that emulates an IDE drive. It literally takes about an hour to boot. The ultra-slow part occurs when Grub ...
5
votes
4answers
5k views

Which FileSystem is best for CentOS 5 on SSD?

Background: We have gigs of data, which require to process large files simultaneously and in parallel with similar processes. We are going to get SSD just because of fastest latency. We will install ...