Without enabling TRIM (either periodic TRIM or continues TRIM) garbage collection can become write-amplified in the edge case where your hard drive is almost full. This problem can be mostly mitigated by over-provisioning the SSD's unused space (leave about 20% of the drive free)...
[root@postgres ~]# lvextend -l +100%FREE /dev/mapper/centos-rootSize of logical volume centos/root changed from <91.00 GiB (23295 extents) to 100.99 GiB (25854 extents). Logical volume centos/root successfully resized. 9、刷新文件系统的存储容量 查看文件类型发现是xfs 刷新文件系统的存储容量 文...
让内核自动检测"是否需要重新分配PCI资源".即使此项已开启,你依然可以用"pci=realloc=[on|off]"来覆盖它.此项仅在已开启CONFIG_PCI_IOV的情况下才有意义.此时,如果BIOS没有为SR-IOV(Single-Root I/O Virtualization) BAR(基地址寄存器)分配资源,那么内核将会自动对PCI资源进行重新分配.建议与CONFIG_PCI_IOV同...
lrwxrwxrwx. 1 root root 7 May 4 06:32 bin -> usr/bin dr-xr-xr-x. 5 root root 1024 May 8 21:44 boot drwxr-xr-x. 2 root root 4096 May 13 20:47 data drwxr-xr-x. 20 root root 3400 May 13 20:43 dev drwxr-xr-x. 139 root root 12288 May 13 20:25 etc drwxr-xr-x. 4...
[root@localhost 桌面]#vim /etc/inittab(前面省略)#Default runlevel. The runlevels used are:#0 - halt (Do NOT set initdefault to this)#1 - Single user mode#2 - Multiuser, without NFS (The same as 3, if you do not have networking)#3 - Full multiuser mode#4 - unused#5 - X11#6...
Use this to prevent a boot-time mount of a removable-media device, such as a CD-ROM or floppy drive. o user This option allows unprivileged users to run mount on a particular entry, which can be handy for allowing access to CD-ROM drives. Because users can put a setuid-root file ...
Virtualization type:full #支持cpu虚拟化技术 L1d cache:32K L1i cache:32KL2cache:256KL3cache:6144KNUMAnode0CPU(s):0 查看/proc/cpuinfo,可以知道每个cpu信息,如每个CPU的型号,主频等。 代码语言:javascript 复制 root@ubuntu:/home/peng# cat/proc/cpuinfoprocessor:0vendor_id:GenuineIntel ...
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub lspci命令用于列出连接到 PCI 总线的设备信息,它可以显示计算机上安装的 PCI 设备的详细信息,包括网络适配器、显卡、声卡、存储控制器等。 -vv 选项可以查看详细的信息 ┌──[root@liruilongs.github.io]-[~] └─$lspci -vv 00:00.0 ...
[root@hadoop102 reliable]# pvcreate /dev/sda Device /dev/sda excluded by a filter. 选择操作的磁盘: [root@hadoop102 reliable]# fdisk /dev/sda 欢迎使用 fdisk (util-linux 2.23.2)。 更改将停留在内存中,直到您决定将更改写入磁盘。 使用写入命令前请三思。
SolaDrive provides the most affordable Managed NVMe SSD VPS for Linux while using the latest Intel Xeon processors, fastest NVMe storage, real-time monitoring and coupled with quick 15 minute responses from our expert technical support 24/7.