最近测试了一下PCIE-SSD在数据库环境的迁移和加压情况，IOPS无可置疑，比起机械硬盘确实是高了很多个量级，在数据环境中的IO方面确实有很稳定的提升，目前使用闪存产品系列，看官网最新的发布已经支持6T了，这个着实让我想起曾经的U盘，几十M,几百兆都曾经风光一时。
基本的软件要求如下，摘自用户文档中，各个厂商应该都差不多。
尽管官网的发布是支持Linux 5,6其实安装包里已经有了7的支持版本了，这个绑定是内核粒度，确实非常细。
1.1在官网下载rpm包，解压
如果是Linux 6版本，基本就是参考CentOS，可以看到版本6有以下内核版本的rpm
./CentOS/6:
total 5816
-rw-rw-r-- 1 1000 1000 559112 Mar 31 08:18 shannon-module-2.6.32-131.0.15.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 563396 Mar 31 08:18 shannon-module-2.6.32-220.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 563028 Mar 31 08:18 shannon-module-2.6.32-279.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 528616 Mar 31 08:18 shannon-module-2.6.32-358.23.2.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 528456 Mar 31 08:18 shannon-module-2.6.32-358.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 528204 Mar 31 08:18 shannon-module-2.6.32-431.11.2.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 527836 Mar 31 08:18 shannon-module-2.6.32-431.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 527528 Mar 31 08:18 shannon-module-2.6.32-504.12.2.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 527732 Mar 31 08:18 shannon-module-2.6.32-504.8.1.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 527756 Mar 31 08:18 shannon-module-2.6.32-504.el6.x86_64-2.8-6.1.x86_64.rpm
-rw-rw-r-- 1 1000 1000 555616 Mar 31 08:18 shannon-module-2.6.32-71.el6.x86_64-2.8-6.1.x86_64.rpm
1.2选择适合的内核版本，安装rpm
[root@db117 6]# rpm -ivh shannon-module-2.6.32-431.el6.x86_64-2.8-6.1.x86_64.rpm
Preparing... ########################################### [100%]
1:shannon-module-2.6.32-4########################################### [100%]
1.3验证是否安装完成
[root@db117 rpm]# ll /lib/modules/2.6.32-431.el6.x86_64/extra
total 2448
-rw-r--r-- 1 root root 2502739 Mar 13 17:28 shannon.ko
安装shannon-utils
[root@db117 rpm]# rpm -ivh shannon-utils-2.8-6.1.x86_64.rpm
Preparing... ########################################### [100%]
1:shannon-utils ########################################### [100%]
1.4检查安装情况：
[root@db117 rpm]#fdisk -l
Disk /dev/dfa: 800.0 GB, 800000573440 bytes
32 heads, 32 sectors/track, 1525880 cylinders
Units = cylinders of 1024 * 512 = 524288 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 32768 bytes
Disk identifier: 0x00000000
[root@db117 rpm]# ls /dev/df*
/dev/dfa
[root@db117 rpm]# rpm -qa | grep shannon
shannon-utils-2.8-6.1.x86_64
shannon-module-2.6.32-431.el6.x86_64-2.8-6.1.x86_64
1.5查看PCIE-SSD状态
[root@db117 rpm]# shannon-status /dev/scta
Basic Information:
Control Device Node: /dev/scta
Driver Mode: Block
Block Device Node: /dev/dfa
Device State: Attached
Access Mode: ReadWrite
Product Model: Direct-IO G3i
Serial Number: SH15608K734181
UDID: 1CBO0275-1CB00030-04815608-4B734181
PCI VendorID: 1CB0
PCI DeviceID: 0275
PCI Bus Address: 05:00:0
PCI Link Speed: pcie 2.0 x 8
Firmware Version: 3.2
Firmware Build: f2796a40
Driver Version: 2.8.6.1
FPGA Reconfig Support: Yes
Logical Sector: 512
Physical Sector: 4096
Disk Capacity: 800.00 GB
Physical Capacity: 1094.72 GB
Overprovision: 26.93%
Atomic Write: Disabled
Prioritize Write: Disabled
Work Status:
Controller Temperature: 45 degC, Max 45 degC
Board Temperature: 30 degC, Max 31 degC
Flash Temperature: 32 degC, Max 32 degC
Internal Voltage: 1022 mV, Max 1028 mV
Auxiliary Voltage: 1833 mV, Max 1842 mV
Power Cycles: 8
Power On Time: 46 hours 12 minutes
Dynamic Bad Blocks: 0
Media Status: Healthy
SEU Flag: Normal
Lifetime Data Volumes:
Host Write Data: 73555.63 GB
Host Read Data: 72660.33 GB
Total Write Data: 80719.31 GB
Lifetime Write Amplifier: 1.090
Estimated Life Left: 98.560%
Realtime IO Statistics:
Write Bandwith: 0.000 MB/s
Write IOPS: 0.000 K
Avg Write Latency: 0.000 ms
Total Write Bandwith: 0.000 MB/s
Read Bandwith: 0.001 MB/s
Read IOPS: 0.000 K
Avg Read Latency: 0.042 ms
Write Amplifier: 1.000
Buffer Write Percentage: 0%
[root@db117 rpm]#
1.6监控性能
[root@db117 rpm]# shannon-status -m /dev/scta
Direct-IO PCIe Flash Card Monitor Program
Commands: q|Q exit; g|G general info; m|M main window
Monitoring device '/dev/scta' at PCI:05:00:0
Device State: Attached
Access Mode: ReadWrite
Power Cycles: 8
Power On Time: 46 hours 12 minutes
Controller Temperature: 45 degC, Max 45 degC
Board Temperature: 30 degC, Max 31 degC
Flash Temperature: 31 degC, Max 32 degC
Internal Voltage: 1019 mV, Max 1028 mV
Auxiliary Voltage: 1833 mV, Max 1842 mV
Free Block Count: 2102
Host Write Data: 73555.63 GB
Write Bandwith: 0.000 MB/s
Write IOPS: 0.000 K
Avg Write Latency: 0.000 ms
Host Read Data: 72660.33 GB
Read Bandwith: 0.000 MB/s
Read IOPS: 0.000 K
Avg Read Latency: 0.000 ms
Total Write Data: 80719.31 GB
Total Write Bandwith: 0.000 MB/s
Write Amplifier: 1.000, lifetime 1.090
Buffer Write Percentage: 0%
1.7分区格式化：
[root@db117 rpm]# fdisk /dev/dfa
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1525880, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-1525880, default 1525880):
Using default value 1525880
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@db117 rpm]# mkfs -t ext4 /dev/dfa1
1.8挂载分区
mkdir /U02
mount /dev/dfa1 /U02
1.9配置/etc/fstab
/dev/dfa1 /U02 ext4 defaults,noatime,nodiratime 1 2
