1. [root@zookeeper1 ~]# free
    2.               total        used        free      shared  buff/cache   available
    3. Mem:        3863564      199312     3475688       11880      188564     3428644
    4. Swap:       4063228           0     4063228
    6. [root@zookeeper1 ~]# cat /proc/cpuinfo | grep svm
    7. flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc art rep_good nopl tsc_reliable nonstop_tsc extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext retpoline_amd vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero ibpb arat npt svm_lock nrip_save vmcb_clean flushbyasid decodeassists pku ospke overflow_recov succor
    8. flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc art rep_good nopl tsc_reliable nonstop_tsc extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext retpoline_amd vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero ibpb arat npt svm_lock nrip_save vmcb_clean flushbyasid decodeassists pku ospke overflow_recov succor
    10. [root@zookeeper1 ~]# mkfs.ext4 /dev/sdb
    11. mke2fs 1.42.9 (28-Dec-2013)
    12. /dev/sdb is entire device, not just one partition!
    13. Proceed anyway? (y,n) y
    14. Filesystem label=
    15. OS type: Linux
    16. Block size=4096 (log=2)
    17. Fragment size=4096 (log=2)
    18. Stride=0 blocks, Stripe width=0 blocks
    19. 3276800 inodes, 13107200 blocks
    20. 655360 blocks (5.00%) reserved for the super user
    21. First data block=0
    22. Maximum filesystem blocks=2162163712
    23. 400 block groups
    24. 32768 blocks per group, 32768 fragments per group
    25. 8192 inodes per group
    26. Superblock backups stored on blocks: 
    27.         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
    28.         4096000, 7962624, 11239424
    30. Allocating group tables: done                            
    31. Writing inode tables: done                            
    32. Creating journal (32768 blocks): done
    33. Writing superblocks and filesystem accounting information: done   
    37. ▽root@zookeeper1 ~]# blkid /dev/sdb
    38. /dev/sdb: UUID="4c752ad1-cc63-4542-9f03-65a139253c31" TYPE="ext4" 
    39. [root@zookeeper1 ~]# mkdir /kvm_data
    40. [root@zookeeper1 ~]# mount /dev/sdb /kvm_data/
    44. [root@zookeeper1 ~]# vim /etc/fstab 
    45. /dev/sdb                /kvm_data               ext4    defaults        0 0
    47. [root@zookeeper1 ~]# systemctl stop firewalld  
    48. [root@zookeeper1 ~]# systemctl disable firewalld
    49. [root@zookeeper1 ~]# iptables -nvL
    50. Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
    51.  pkts bytes target     prot opt in     out     source               destination         
    53. Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
    54.  pkts bytes target     prot opt in     out     source               destination         
    56. Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
    57.  pkts bytes target     prot opt in     out     source               destination