Questions tagged [iops]
111 questions
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How to test is hardware ssd-cache work?
We have server with hardware raid controller (Adaptec ASR71605Q).
It has 10 sas HDD, 2 SSD for cache and 1gb onboard cache ram.
On server installed ESXi. On ESXi I'm start Linux, create 2Tb disk for tests.
And now i need to test and ensure, that…

easy_john
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Raid0 IOPS poor performance
I've set up 8x500gb disks in raid0 on an EBS optimized EC2 instance and I ran iops.py to check the speed, but it seems really slow.
Does anyone know if this is normal speeds for raid0? I'd think I'd be getting IO/s over 1000 more or less…

Mackwerk
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1 answer
SSD IOPS inquire
I have question about IOPS
For example is there difference in IOPS if the SSD was ( sata 2.5 or M.2 sata or M.2 M-key nvme )
i know
sata interface = 600MB
M.2 sata = 600MB
m.2 M-Key nvme = 2000MB
But I am asking about IOPS of them same or there is…

BIQ
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1 answer
less IOPS number but better READ/ WRite performance
I tried measuring virtual disk performance using bonnie++.
Case 1 result :
Using uid:0, gid:0.
Writing intelligently...done
Rewriting...done
Reading intelligently...done
start 'em...done...done...done...
Version 1.03e ------Sequential…

kumar
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How to configure Fio to a more accurate result of IOPs
I am using fio to test how much iops my server can offer. My conf file says to write a 20GB file and read it. THe results show iops=27291. But the test last only 10 seconds. I wonder if the test last 2 hours for example, I would have a more accurate…

Felipe Gutierrez
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1 answer
Google compute - Less vCPUs high IOPS vs More vCPUs low IOPS
My Postgresql databases are running on Google compute instances N1 with custom(26 vCPUs, 52 GB memmory) with a pessistent ssd disk 1.2TB . This setup is way underused, but keep the Read IOPS under 3k. So we reduce the setup to custom(20 vCPUs, 40…

Denis Argentin
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