vSphere ESXi如何将磁盘标记为SSD的磁盘
1、背景在做VSAN实验时，至少需要一块SSD磁盘，作为读/写缓存。如果没有SSD盘，我们需要将普通的HDD盘，标记为SSD磁盘。需要修改参数。
2、步骤
第一步：查找需要修改为SSD的磁盘的ID：如下标红即为磁盘的ID
esxcli storage core device list mpx.vmhba1:C0:T1:L0 Display Name:Local VMware Disk (mpx.vmhba1:C0:T1:L0) Has SettableDisplay Name: false Size: 20480 Device Type:Direct-Access MultipathPlugin: NMP Devfs Path:/vmfs/devices/disks/mpx.vmhba1:C0:T1:L0 Vendor:VMware Model:Virtual disk Revision: 1.0 SCSI Level: 2 Is Pseudo:false Status: on Is RDMCapable: false Is Local:true Is Removable:false IsSSD: false第二歩：创建一个SATP的规则，--option参数设置为enable_ssd，具体操作如下：
esxcli storage nmp satp rule add --satp VMW_SATP_LOCAL --device mp
x.vmhba1:C0:T1:L0 --option "enable_local enable_ssd"
查看SATP规则配置成功
esxcli storage nmp satp rule list | grep enable_ssd
VMW_SATP_LOCAL mpx.vmhba1:C0:T1:L0
enable_local enable_ssd user 第三步：reclaim重新申明磁盘，具体操作如下：
esxcli storage core claiming reclaim -d mpx.vmhba1:C0:T1:L0
第四步：验证是否修改成功，In SSD：true，说明修改成功。重新扫描磁盘即可开始做VSAN实验了。
esxcli storage core device list -d mpx.vmhba1:C0:T1:L0
mpx.vmhba1:C0:T1:L0
Display Name: Local VMware Disk (mpx.vmhba1:C0:T1:L0)
Has Settable Display Name: false
Size: 40960
Device Type: Direct-Access
Multipath Plugin: NMP
Devfs Path: /vmfs/devices/disks/mpx.vmhba1:C0:T1:L0
Vendor: VMware
Model: Virtual disk
Revision: 1.0
SCSI Level: 2
Is Pseudo: false
Status: on
Is RDM Capable: false
Is Local: true
Is Removable: false
Is SSD: true
Is VVOL PE: false
Is Offline: false
Is Perennially Reserved: false
Queue Full Sample Size: 0
Queue Full Threshold: 0
Thin Provisioning Status: unknown
Attached Filters:
VAAI Status: unsupported
备注：删除SATP规则：
esxcli storage nmpsatp rule remove --satp VMW_SATP_LOCAL --device="mpx.vmhba1:C0:T1:L0"
做个记号
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