All Questions
Tagged with performance-tuning hard-drive
10 questions
0
votes
0
answers
96
views
How To Change /Lib Directory
Production server / is only 50GB and it's full.
23GB is in /lib | /snapd 11GB /flatpak 7GB
I see the snap store is installing snaps to /var/lib/snapd | I have a second drive /dev/sdb that has 500GB of ...
- 193
4
votes
1
answer
243
views
Shingled magnetic recording(SMR) device managed - sequential write performance optimizations
recently (2020-05) many HDD producers were caught silently replacing CMR lines with SMR disks, which brought more exposure to the whole concept.
It seems that most device-managed SMR disks first write ...
- 149
2
votes
2
answers
385
views
How to ask antivirus software to work slower and hence use less disk access?
It is our policy for our end-user's computers (usually laptops) to have high power CPUs, GPUs, RAMs (no less than 16GB) and HDD space (1TB), but we save money by choosing lower rotation speed of HDD. ...
- 111
0
votes
0
answers
216
views
Mongodb, we can't go over 100 insert/sec on 200iops HDD
Thanks in advance for your help, we get a strange behaviour in mongodb. So we have a cluster of 20 shards, each composed of 1 master and 2 slaves. This database has a heavy load of write only. However ...
- 101
2
votes
2
answers
3k
views
BTRFS, sector alignment and Advance Format Disks
I want to set up a BTRFS RAID1 setup with two WD Red 4TB disks, which possess 4K sectors. Since I am keen to get it right the first time before copying data to it (yes it will be backed up), my ...
- 195
0
votes
1
answer
59
views
How to alleviate high disk reads on server?
We are currently hosting a 3TB library of image galleries on our web server, all searchable by users. With about 400 active users at a certain time on the website, our disk reads are pushing 100% I/O ...
4
votes
3
answers
4k
views
Disk write speed much slower than read speed
I have a VPS server (WiredTree), running CentOS.
After experiencing some performance issues I created a simple benchmark for disk read/write speed using the following script:
echo Write to disk
dd ...
- 175
6
votes
1
answer
222
views
How to prevent IO Load under Linux for Video serving?
I'm currently serving videos of conferences via Nginx on 3 servers; 4 cores, enough memory (no swap used) and RAID-10 with 8 drives per server. Unfortunately iostat -xd 1 gives me 100% on all 3 ...
- 228
3
votes
4
answers
4k
views
It is possible move a specific file to the beginning of the disk?
It is possible move a specific file to the beginning of the disk? I want to move my virtual machine disk files (virtual disk) to the beginning of the disk to improve disk access performance. I believe ...
6
votes
8
answers
21k
views
Hard Drive Speed: RPM vs. Cache
When trying to choose a SATA magnetic hard drive (not SSD) for high performance for both random and linear access, which should be the primary factor?
For example: would a 10k RPM drive with 16MB ...
- 391