All Questions
Tagged with io hard-drive
67
questions
0
votes
2
answers
308
views
Cannot repair a disk with corrupted GPT using gdisk
I have a disk that was forcefully closed when it was working in a disk operation (when downloading files to it). Now, the GPT is corrupted and I cannot mount it correctly. I am trying to mount it ...
- 103
0
votes
2
answers
300
views
Check that every file is successfully readable on a volume
For the first time since many years, I have a disk (SSD that shows 99% health with DiskInfo!) that has a few unreadable files. I tried to open these files with wxHexEditor, and when scrolling in the ...
- 1,916
0
votes
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195
views
Bad disk write performance & high PSI
I'm currently running into an issue where writing files is causing insanely high pressure on the I/O side:
It goes so far that the system even stalls for a few seconds then writes a bit, stalls again,...
- 1
0
votes
1
answer
388
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Is JBOD or striping better for lots of small files?
I have a server in multi-disk configuration using LVM-on-LUKS in JBOD mode. But I notice in htop that the kernel time in CPU usage is (un)usually very high, and in iotop the jbd2/dm-5-8 and ...
- 28.4k
0
votes
1
answer
400
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pipe-lining using wget or curl on linux
I would like to know how can I download a file from the internet using wget and/or curl by separating the file into even segments and downloading the file using 8 or 16 direct links, substantially ...
- 115
0
votes
0
answers
142
views
Stop disk activity of a process without killing the process
Is there a technique or tool that can be used to stop a running process from writing to a drive, but not kill the process.
If I have more level of control in that, like selecting which drives the ...
- 105
4
votes
0
answers
211
views
Any way to tweak Windows' kernels or drives to handle I/O and reduce or eliminate hangs with failing drives?
I frequently work with failing hard drives for data recovery and various tasks. These tasks are usually short lived in nature, but important. The way Windows seems to handle any failing drive that's ...
- 1,231
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votes
1
answer
57
views
HDD I/O fast at first but gradually decreases? [duplicate]
I was benchmarking my WD 500 GB HDD in Ubuntu Disks several times and saw that the read speeds started at 140 MB/s, but it consistently would gradually decrease by a few MB/s with seemingly no floor. ...
- 113
1
vote
0
answers
778
views
High percentage of IO in iotop
I have a problem with a very slow process (mongod), so I downloaded iotop to see how is my drive going.
I can see a very high percentage in the IO< column, constantly about 70-99%. Can someone ...
- 111
2
votes
2
answers
6k
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rm -rf takes a long time
I have a directory ./aggregated/ in which I have 7550 sub-dirs each containing 250 files. aggregated has 5.5GB in total.
I've tried deleting aggregated via rm -rf aggregated and it is taking hours. ...
- 141
0
votes
0
answers
236
views
Problems accessing disk after IO tests
I am having problems when accessing my home folder, or generally anything that is on my HDD (I also have an SSD which seems to work fine) in my ubuntu (18.04.4) workstation.
:/$ df -h
Filesystem ...
- 101
2
votes
0
answers
2k
views
Cannot diagnose slow disk read speed, bottleneck, in Ubuntu
I have the same processes running on 2 (or more machines) for which we notice a massive slow down in disk i/o on some machines. The PCs have very similar hardware (I am happy to post dmidecode if ...
- 121
4
votes
1
answer
2k
views
Where do Docker containers and Kubernetes pods write to disk in absence of a volume?
General question about the internals of Docker and containers running in Kubernetes when using the Docker engine.
Docker containers are ephemeral, meaning that if a container is destroyed, any data ...
- 43
0
votes
1
answer
308
views
Does 'Write cliff' phenomenon only happen to SSD disks?
First of all, I am new to disks, I just know the basics. I am trying to improve performance of a software with heavy I/O and I need to understand how my SAS disks work in terms of read and write speed....
- 3
0
votes
2
answers
277
views
What's the use of providing number of partitions when partitioning a hard disk?
I'm trying to partition my hard disk to make it usable. I'm following the steps given in this link to partition my hard disk. I'm doing this by providing the number of partitions as 1 and choosing the ...
- 113