vsan 节点部署，若是遇到磁盘分区删不到，如何处理？

你们阅读本文后，若是有更好的方式去解决这个分区问题，欢迎在留言区留下脚印，一块儿探讨一下。

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所谓的删不掉，指你已经尝试过：

1. 在vsphere web里经过GUI的方式删除分区；
2. 将节点从集群里删除，而后经过command partedUtil工具去删除

在上述删除分区信息未果后，请尝试以下方案：

1. 先将esxi操做系统重置或者重装；
2. 经过节点vsphere web手动删除分区信息；
   
3. 经过以下命令查看是否仍然有分区信息；

   ls /vmfs/devices/disks/

4. 若是仍然有，请将Windows或者Linux的iso挂载到cdrom，而后从cdrom启动安装，识别出有分区信息的disk，执行分区删除操做。
   真是顽固啊。只能经过挂载iso来删除分区信息了。

   [root@shvsan05node10:~] partedUtil delete /vmfs/devices/disks/naa.5000c500c1da6d53 1
   Error: Function not implemented during read on /dev/disks/naa.5000c500c1da6d53
   Error: The primary GPT table states that the backup GPT is located beyond the end of disk. This may happen if the disk has shrunk or partition table is corrupted. Fix, by writing backup table at the end? This will also fix the last usable sector appropriately as per the new reduced size. diskPath (/dev/disks/naa.5000c500c1da6d53) diskSize (3516328368) AlternateLBA (35162624431) LastUsableLBA (35162624398)
   Warning: The available space to /dev/disks/naa.5000c500c1da6d53 appears to have shrunk. This may happen if the disk size has reduced. The space has been reduced by (31646296064 blocks). You can fix the GPT to correct the available space or continue with the current settings ? This will also move the backup table at the end if it is not at the end already. diskSize (3516328368) AlternateLBA (35162624431) LastUsableLBA (35162624398) NewLastUsableLBA (3516328334) 
   Error: Can't have a partition outside the disk!
   Unable to construct disk from device /vmfs/devices/disks/naa.5000c500c1da6d53

经过挂载Ubuntu的iso，能够看到有一个fat32文件系统的分区。
![](https://s1.51cto.com/images/blog/201912/09/184300aa59f5e989db416419413ba879.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)
执行删除操做，真的很慢。目测耗时超过1h。14:50pm~
![](https://s1.51cto.com/images/blog/201912/09/02f0412e9bebade6089106080da8f97e.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)