Hi!
I have configured a Dell Poweredge T20 with a Xeon proccessor, 24 GB ECC memory .
I have four 256 GB SSD connected to a raid 10 with raid controller LSI SAS 9211-8.
Four 2 TB HDD in raid 5 within Intel raidcontroller (integrated) as storage volume.
OS = Server 2019 Datacenter running HyperV. Installed on the SSD-volume.
Speeds of copying/transfering files are above 100 MB/sec within the host regardless of transfering files on the SSD volume or storage volume. However when making a virtual machine (also Server 2019) speeds are limited to about 10 MB/sec on the storage volume and 70 MB/sec on the SSD volume.
Doing the same thing directly on the host, tranfering files are about 300 MB/sec in the SSD volume and 80 MB/sec on the storage volume.
It can´t be network related since when I´m copying files within the guest/virtual machine the speeds are the same.
Why is the host so slow on writing to disk? Reading is far faster.
I have configured a Dell Poweredge T20 with a Xeon proccessor, 24 GB ECC memory .
I have four 256 GB SSD connected to a raid 10 with raid controller LSI SAS 9211-8.
Four 2 TB HDD in raid 5 within Intel raidcontroller (integrated) as storage volume.
OS = Server 2019 Datacenter running HyperV. Installed on the SSD-volume.
Speeds of copying/transfering files are above 100 MB/sec within the host regardless of transfering files on the SSD volume or storage volume. However when making a virtual machine (also Server 2019) speeds are limited to about 10 MB/sec on the storage volume and 70 MB/sec on the SSD volume.
Doing the same thing directly on the host, tranfering files are about 300 MB/sec in the SSD volume and 80 MB/sec on the storage volume.
It can´t be network related since when I´m copying files within the guest/virtual machine the speeds are the same.
Why is the host so slow on writing to disk? Reading is far faster.