I'm testing the performance of a single disk in my setup using DD.
It says i'm writing at 430Mb/s which is impossible. (It's a seagate ST4000DM000 running at 5900 rpm).
It only shows a few Mb/s in writes using iostat.
But the file is still being created and it has the correct size (after 993.575445 seconds there was a 400GB file on the disk).
Does anyone know what is going on?
K.
It says i'm writing at 430Mb/s which is impossible. (It's a seagate ST4000DM000 running at 5900 rpm).
It only shows a few Mb/s in writes using iostat.
But the file is still being created and it has the correct size (after 993.575445 seconds there was a 400GB file on the disk).
Does anyone know what is going on?
K.
Code:
pool: TEST-4TB
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
TEST-4TB ONLINE 0 0 0
gptid/b906c02c-5f8a-11e5-beef-001f2954783c ONLINE 0 0 0
errors: No known data errors
Code:
kareldc@SERVER:/mnt/TEST-4TB % sudo dd if=/dev/zero of=/mnt/TEST-4TB/testfile bs=1G count=400 400+0 records in 400+0 records out 429496729600 bytes transferred in 993.575445 secs (432273897 bytes/sec)
