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由于卷的可用空间不足,写入预留空间的 LUN 失败

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ontap-9
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core<a>2009027158</a>
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适用场景

  • AFF 系统
  • ONTAP 9

问题描述

  • iSCSI卷与SQL集群节点意外断开连接。
  • 半厚卷配置中预留了空间的LUN:
    • 卷保证=卷
    • 预留百分比= 0
    • 已禁用存储效率
    • 无快照
    • 自动调整设置:Mode=off
  • "user-data"超过LUN大小、由于卷已满、它们偶尔会出现写入失败。

示例:
 
[Node01: wafl_spcd_main: monitor.volume.full:debug]: Volume Vol1@vserver:XXXXX is full (using or reserving 98% of space and 0% of inodes).
[Node01: wafl_exempt00: wafl.vol.full:alert]: Insufficient space on volume Vol@vserver:XXXXX to perform operation. 64.0KB was requested but only 1.00KB was available.
[Node01: wafl_exempt00:wafl.write.fail.spcres:error]: Write failed to file with space reservations due to lack of disk space in volume Vol1@vserver:XXXXX(guarantee volume, inode 96, offset 22128820224, len 65536)
 
::> df -h -vserver vs01 -volume Vol1
Filesystem          total  used   avail  capacity  Mounted on Vserver
/vol/Vol1/          315GB  315GB  0B     100%      /Vol1  vs01
/vol/Vol1/.snapshot 0B     0B     0B     0%        /Vol1/.snapshot  vs01
2 entries were displayed.

::> vol show-space Vol1 -fields performance-metadata,user-data,filesystem-metadata,inodes,total-used,physical-used,logical-used;

vserver volume  user-data filesystem-metadata inodes performance-metadata total-used physical-used logical-used

------- ------- --------- ------------------- ------ -------------------- ---------- ------------- ------------
vs01    Vol1  305.4GB  138.4MB             24KB   9.45GB              315.0GB    288.4GB       315GB

::> lun show -vserver vs01 -path /vol/Vol1/Lun1 -instance
          Vserver Name: vs01
            LUN Path: /vol/Vol1/lun1
          Volume Name: Vol1
           Qtree Name: ""
            LUN Name: lun1
            LUN Size: 300GB
            OS Type: linux
       Space Reservation: enabled
   Space Reservations Honored: false
        Space Allocation: enabled
             State: online
   Space Reservations Honored: false
        Space Allocation: enabled
             State: online
             Mapped: mapped
Physical Size of Logical Block: 512B
           Read Only: false
     Fenced Due to Restore: false
           Used Size: 282.33GB
      Maximum Resize Size: 128TB

 

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