Questions about hard disks' performance, issues, tips, and software.
Questions about hard disks performance, issues, tips, and related software, e.g. data recovery or disk test software.
Questions tagged [hard-drive]
2448 questions
18
votes
3 answers
Acronyms in HDD specification
I wonder about acronyms in specification of Seagate Exos 7E8 8TB SAS (ST8000NM0075) and Seagate Exos X10 10TB SAS (ST10000NM0096) disks. In Performance part I can see:
Random Read/Write 4K QD16 WCD (IOPS) - Can you please tell me what's "4K QD16…
Alda
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18
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14 answers
How can I destroy data on a failed hard disk without voiding warranty?
Suppose I have a hard disk with data I don't want to expose to a third party. The warranty period for that disk still lasts. Now the disk starts malfunctioning.
I can't use a disk wiping program on a malfunctioning disk - it just wouldn't work. If I…
sharptooth
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18
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2 answers
An unknown tool is wiping our Virtual Machines and we can't ID it
A console view of a Windows 2008 R2 VM, on vSphere is showing the following screen:
"Operation 2 of 2"
"Wiping disk"
Can someone advise on what this program is?
Some information on this mystery:
A number of VMs are now effected. The symptom is…
Rqomey
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18
votes
10 answers
How can I find out what hard disks are attached to a Linux box?
How do I find out what hard drives are attached to a Linux box? I'm hoping for a single command that can give me a nice list of all ATA/SCSI/etc drives.
I've catted /proc/partitions in the past to do this, but I wonder if that still works if there's…
Mike Akers
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18
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4 answers
Intro to Laptop Hard Drives
I've had my first notebook hard drive death (well, actually, it's currently dying... clicking noises, super slow windows boot up ...)
Anyway, I now I realize I don't know anything about laptop hard drives. I was just going to take one out of…
carrier
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17
votes
5 answers
What do these disk errors in syslog mean?
I just rebooted my monitoring server for the first time in a while, and the following starting filling the screen:
Jul 11 23:52:30 monit kernel: [ 25.255908] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jul 11 23:52:30 monit kernel: […
Soviero
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17
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6 answers
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?
inac
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17
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6 answers
Linux - Help, I'm running out of inodes!
I have a filesystem that has lots of small files. Currently about 80% of inodes are used (I checked with df -i), however only 60% of disk space is used. How can I 'increase' the number of inodes? If it was just disk space, I know that I could just…
Amandasaurus
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16
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3 answers
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 still has enough free space
Are these two disks…
Hongwei Liu
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16
votes
2 answers
How to 're-balance' data in zfs? (Make sure the data is spread amongst all striped mirrors)
Using a striped mirror (Raid 10) as an example, if two disks are expanded to four, how can the data from the two disks be 're-balanced' (spread out) amongst the two mirrors?
That is, how can the files which were written to one mirror be written to…
Greg
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16
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10 answers
What brand(s) of hard disk has the lowest failure rates?
Wiki for information on which storage manufacturer(s)'s drives have the longest life / lowest failure rate?
Everyone has a favorite, but if you can refer to a (hopefully recent and somewhat impartial) study, that would help avoid subjectivity.
EDIT:…
username
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16
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2 answers
ZFS checksum errors, when do I replace the drive?
I'm fairly new to ZFS and I have a simple mirrored storage pool setup with 8 drives. After a few weeks of running, one drive seemed to generate a lot of errors, so I replaced it.
A few more weeks go by and now I'm seeing small errors crop up all…
Dominic P
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16
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1 answer
Why does `df` indicate no available space when used is much less than total size, on my VPS?
My VPS display this with df -h
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 100G 46G 0 100% /
Does anyone have a idea to fix this ?
Guillaume LUNIK
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16
votes
3 answers
Why are Large Form Factor (LFF) disks still fairly prevalent?
Small Form Factor (SFF) / 2.5" disks seem to have become more popular than LFF disks now due to them being preferable over LFF disks in many scenarios (lower power consumption, higher density, etc). However, LFF disks still seem to feature in major…
dbr
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16
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2 answers
How do you disable the "last accessed" attribute on NTFS/Windows?
Inspired by this answer, I realize I have no idea how to disable the last accessed attribute in Windows to increase performance. If you can, how?
I know in Linux you can mount the partition with the 'noatime' option, but is there a similar feature…
romandas
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