Still sorry for my bad English . We wrote this test in Chinese last month.
CPU: CPU E5-2660 v4 * 2
RAM: 64G * 4 = 256GB
HDD: Segate 7200RPM 1TB * 28 hard drives
Motherboard Model: X10DSC +
Case Model: 6048R-E1CR60L
SAS Card Model: AOC-S3008L-L8-P The use of the chip is LSI 3008
SAS Expander backplane model: BPN-SAS3-946SEL1
PVE 5.0
Summary
1. The efficacy of a single set of ZFS Raidz1 is slightly lower than that of Stripe Raidz1 (Raidz1 crossed with Raid 0 structure)
2. Bus -> SAS HBA-> SAS Expander-> total bandwidth of each hard disk
Use ZFS raid0 0 vs mdadm raid 0 test,
When the get new machine , doing this test is very important
First check single hard drive test. If HBA and HDD compatibility issues,it 's a big problem
3.fio2 test
There are restrictions on the use of zfs ram, the largest use of 2G RAM test files over 2G, so do not take RAM to cache.
Result
If you want see more detial please read
Google 翻译
CPU: CPU E5-2660 v4 * 2
RAM: 64G * 4 = 256GB
HDD: Segate 7200RPM 1TB * 28 hard drives
Motherboard Model: X10DSC +
Case Model: 6048R-E1CR60L
SAS Card Model: AOC-S3008L-L8-P The use of the chip is LSI 3008
SAS Expander backplane model: BPN-SAS3-946SEL1
PVE 5.0
Summary
1. The efficacy of a single set of ZFS Raidz1 is slightly lower than that of Stripe Raidz1 (Raidz1 crossed with Raid 0 structure)
2. Bus -> SAS HBA-> SAS Expander-> total bandwidth of each hard disk
Use ZFS raid0 0 vs mdadm raid 0 test,
When the get new machine , doing this test is very important
First check single hard drive test. If HBA and HDD compatibility issues,it 's a big problem
3.fio2 test
There are restrictions on the use of zfs ram, the largest use of 2G RAM test files over 2G, so do not take RAM to cache.
Result
If you want see more detial please read
Google 翻译