Commvault 備份虛擬機 突然變的很慢

環境:

Commvault 備份虛擬機

異常狀況:

對新的虛擬機做第一次備份，可能容量比較大，過程中又有其他的備份，造成效能問題，最後就停住多個小時後，手動取消。

但後來要重新備份時，傳輸速度變超級慢，速度大概只剩之前的1/7~8，重開機也一樣。

解決過程:

後來發現之前備份失敗後，虛擬機上有一份snapshot沒被移除，先在esxi上，把那份snapshot刪除後，重新備份，就正常了。

Environment:

Commvault (VM Backup)

Issue:

When performing the first backup of a new virtual machine, the data size was relatively large. During the process, other backup jobs were also running, causing performance issues. Eventually, the job became unresponsive and was manually canceled after several hours.

After that, when attempting to run the backup again, the transfer speed became extremely slow, dropping to about 1/7–1/8 of the original speed. Restarting the system did not resolve the issue.

Resolution:

It was later discovered that after the failed backup, a snapshot remained on the virtual machine and was not removed.

By logging into ESXi and deleting the leftover snapshot, then running the backup again, the performance returned to normal.

ESXI 無法開啟虛擬機器 xxx的電源。開啟模組 monitorloop 的電源失敗

  環境:

ESXI  

Synology active backup business

異常狀況:

用Synology active backup business備份的虛擬機，還原到其他esxi後，開機出現錯誤。

解決過程:

原機配置了較高的CPU與RAM，還原後，目的esxi上資源不足，無法開機，把虛擬機的CPU與RAM調低後，就可以正常開機

Environment:

ESXi
Synology Active Backup for Business

Issue:

After restoring a virtual machine using Synology Active Backup for Business to another ESXi host, the VM fails to power on and shows an error.

Resolution:

The original VM was configured with relatively high CPU and RAM.
After restoration, the target ESXi host did not have sufficient resources to support that configuration.

By reducing the VM’s CPU and RAM allocation, the virtual machine was able to power on normally.

ESXI VMFS 增加容量失敗-無法變更主機組態。

 環境:

ESXI 6.7

異常狀況:

底層硬碟RAID擴充完一顆新硬碟後，要在ESXI上也對儲存區進行擴充。

在web console上操作，對著要擴充的datastore ，選擇"增加容量"。

再來選擇"擴充現有..........."。

第三步，要先在分割之前的圖，點選vmfs區塊，然後就會出現一個調整新增容量的設定，選擇要把新增的硬碟，擴充多少容量到vmfs中。

按下完成後，就會出現錯誤，試了很多次，擴充不同的容量，都一樣錯誤:

說明:延伸 VMFS 資料存放區範圍的容量

狀態:失敗 - 無法變更主機組態。

解決過程:

用指令的方式擴充，就成功了。

Environment:

ESXi 6.7

Issue:

After expanding the underlying RAID by adding a new disk, the datastore also needs to be extended in ESXi.

When performing the operation via the web console:

1. Select the datastore and choose “Increase capacity”
2. Then select “Expand existing…”
3. In the partition layout screen, select the VMFS partition, and adjust how much of the newly added space should be allocated to VMFS

However, after clicking Finish, the following error occurs regardless of the size selected:

• Description: Extend VMFS datastore capacity
• Status: Failed – Unable to change the host configuration

Resolution:

Expanding the datastore using the command line (CLI) was successful.

DHCP 設定匯出匯入

DHCP config export command

netsh dhcp server export d:\backup.txt all

DHCP config import command

 netsh dhcp server import d:\backup.txt all