Xcp/xenserver Resource Monitoring Script program code

I have always been to a month at least a piece of original technical articles to ask myself, but sometimes really lazy, here to despise himself.
Today is the last day of the month, in fact, the recent work, there are many things can be summed up into the article to share to everyone.

There are some scripts written in Python and Shell that I put on the GitHub, one of which is the Xcp/xenserver resource monitoring script.
Xcp/xenserver's xencenter only clients under Windows, the command line to get the available CPU, memory, and disk, is not so convenient and needs to be acquired through each command line. Some commands must also be run on the host itself, such as XL, so I have ssh-key trusts between the host OS of each xcp/xenserver.

Our environment is made up of more than 10 physical servers loaded with XCP consisting of a Pool,pool manager is the first XCP, and then the storage is used for each of the server's own hard drives.
The results of the script output are as follows:

The code is as follows	Copy Code
[Root@xen1 ~]# Vm_monitor Host Xen1:vm-pdb1a Vm-rdb1b available:mem=13/95g disk=6/1108g Cpu=18/24cores Host xen2:vm-pdb1b Vm-rdb1a available:mem=13/95g disk=6/1108g Cpu=18/24cores Host xen3:vm-ads10 vm-ads3 vm-api3 vm-cp3 vm-m1 vm-relay1 available:mem=13/63g disk=151/549g Cpu=8/24cores Host xen4:vm-ads4 vm-c1 vm-log2 VM-MC2 available:mem=22/63g disk=11/549g Cpu=12/24cores

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The specific script content is as follows:

The code is as follows

Copy Code

#!/bin/bash host_list=$ (Xe vm-list params | grep "control domain on Host:" | Awk-f ":" ' {print $} ' | Cut-d. -F 1 | SORT-N) For host in $host _list do   guest_vm=$ (SSH $host xl list-vm |awk ' {print $} ' | GREP-VW name | Sort-n ")      t_mem_m=$ (SSH $host ' XL info | grep total_memory | cut-d:-F 2 ')   F_MEM _m=$ (SSH $host ' XL info | grep free_memory | cut-d:-F 2 ')   t_mem_g=$ (($t _mem_m/1024))   f_mem_g=$ ($ f_mem_m/1024)     disk_uuid=$ (Xe sr-list | grep-a 2-b 1 "Local storage" | grep-b 3-w "$HOST" | gre P UUID | Awk-f ":" ' {print $} ')   t_disk_b=$ (Xe sr-param-list uuid= $disk _uuid | grep physical-size | Cut-d: F 2   u_disk_b=$ (Xe sr-param-list uuid= $disk _uuid | grep physical-utilisation | cut-d:-F 2) &nb Sp f_disk_b=$ ($t _disk_b-$u _disk_b))   t_disk_g=$ (($t _disk_b/1024/1024/1024))   f_disk_g=$ ($f _disk _b/1024/1024/1024))   t_cpu_num=$ (ssh $host ' xe host-cpu-info | grep-w cpu_count | awk-f ":" "{print $}")   v_cpu_sum=0< br>   for VMs in $guest _VM   do     vm_uuid=$ (Xe vm-list | grep-b 1-w $VM | head-n 1 | Awk-f ":" ' {print $} ')     v_cpu_num=$ (Xe vm-list params=vcpus-number Uuid=${vm_uuid} | Grep-w Vcpus | Awk-f ":" ' {print $} ')     v_cpu_sum=$ (($v _cpu_sum+ $v _cpu_num))   done   F_CPU_NU m=$ (($t _cpu_num-$v _cpu_sum))      echo "   echo Host $host: $guest _vm   echo" A vailable:mem=${f_mem_g}/${t_mem_g}g  disk=${f_disk_g}/${t_disk_g}g  CPU=${f_cpu_num}/${t_cpu_num}Cores " Done