Horrible Performance on newly created ZFS Raid
Posted: Fri Nov 27, 2020 1:45 pm
So I just created a ZFSraid1 and I seem to be getting really bad write performance from it. I used the following to create
sudo zpool create -f -o ashift=12 -O casesensitivity=insensitive -O normalization=formD UltraMega raidz disk2 disk3 disk4 disk5
So the drives seems to hang up or something. It takes about 90 seconds to duplicate a 930GB file. On a single external USB drive, it takes about 7 seconds to do the same copy.
Here are 3 different speed tests done within a 10 min time frame and I got some wildly different results.
https://ibb.co/D10mPDh
https://ibb.co/QDK524G
https://ibb.co/3YNhk9M
Dedup is off. Compression is off. No idea whats going on.. Any thoughts?
Also would adding a SSD cache drive work? A friend gave me the command of "zpool add <pool name> cache <drive name>" to add the cache drive
Thanks!!
sudo zpool create -f -o ashift=12 -O casesensitivity=insensitive -O normalization=formD UltraMega raidz disk2 disk3 disk4 disk5
So the drives seems to hang up or something. It takes about 90 seconds to duplicate a 930GB file. On a single external USB drive, it takes about 7 seconds to do the same copy.
Here are 3 different speed tests done within a 10 min time frame and I got some wildly different results.
https://ibb.co/D10mPDh
https://ibb.co/QDK524G
https://ibb.co/3YNhk9M
Dedup is off. Compression is off. No idea whats going on.. Any thoughts?
Also would adding a SSD cache drive work? A friend gave me the command of "zpool add <pool name> cache <drive name>" to add the cache drive
Thanks!!