Avamar：GSAN 降级且服务器处于同步状态

命令“mccli server show-prop” 显示同步状态，因此，节点处于只读模式：

admin@AVMR-SRV:~/>: mccli server show-prop
0,23000,CLI command completed successfully.
Attribute                                    Value
-------------------------------------------- ----------------------------
State                                        Synchronizing
Active sessions                              1
Total capacity                               2.2 TB
Capacity used                                2.1 TB
Server utilization                           92.5%
Bytes protected (client pre-comp size)       139.6 TB
Bytes protected quota (client pre-comp size) Not configured
License expiration                           Never
Time since Server initialization             147 days 22h:34m
Last checkpoint                              2024-07-10 11:11:40 CDT
Last validated checkpoint                    2024-07-10 10:05:41 CDT
System Name                                  AVMR-SRV.LAB.COM
System ID                                    1234567890@00:50:55:BD:99:77
HFSAddr                                      AVMR-SRV
HFSPort                                      27000
IP address                                   192.168.1.113
Number of nodes                              1
Nodes Online                                 0
Nodes Offline                                0
Nodes Read-only                              1
Nodes Timed-out                              0
admin@AVMR-SRV:~/>:

status.dpn 将访问状态显示为 admin：

admin@AVMR-SRV:~/>: status.dpn
Wed Jul 10 08:11:42 CDT 2024  [AVMR-SRV.LAB.COM] Wed Jul 10 13:11:42 2024 UTC (Initialized Tue Feb 13 19:33:08 2024 UTC)
Node   IP Address     Version   State   Runlevel  Srvr+Root+User Dis Suspend Load UsedMB Errlen  %Full   Percent Full and Stripe Status by Disk
0.0    192.168.1.113 19.10.0-135  ONLINE fullaccess mhpu+0000+0000   5 false   1.37 15385  7750230  64.0%  64%(onl:4285) 64%(onl:4287) 64%(onl:4283)
Srvr+Root+User Modes = migrate + hfswriteable + persistwriteable + useraccntwriteable

System ID: 1234567890@00:50:55:BD:99:77


All reported states=(ONLINE), runlevels=(fullaccess), modes=(mhpu+0000+0000)
System-Status: ok
Access-Status: admin

Last checkpoint: cp.20240709142706 finished Tue Jul  9 09:27:44 2024 after 00m 38s (OK)
Last GC: finished Tue Jul  9 08:27:29 2024 after 26m 35s >> recovered 129.99 MB (OK)
Last hfscheck: finished Tue Jul  9 09:22:04 2024 after 52m 11s >> checked 8472 of 8472 stripes (OK)

Maintenance windows scheduler capacity profile is active.
  The maintenance window is currently running.
    Next backup window start time: Wed Jul 10 18:00:00 2024 CDT
  Next maintenance window start time: Thu Jul 11 08:00:00 2024 CDT
admin@AVMR-SRV:~/>:

GSAN 状态为降级。

admin@AVMR-SRV:~/>: dpnctl status
Identity added: /home/admin/.ssh/admin_key (/home/admin/.ssh/admin_key)
dpnctl: INFO: gsan status: degraded
dpnctl: INFO: MCS status: up.
dpnctl: INFO: emt status: up.
dpnctl: INFO: Backup scheduler status: up.
dpnctl: INFO: Maintenance windows scheduler status: enabled.
dpnctl: INFO: Unattended startup status: enabled.
dpnctl: INFO: avinstaller status: up.
dpnctl: INFO: ddrmaint-service status: up.
dpnctl: INFO: ESE status: up.
admin@AVMR-SRV:~/>:

当元数据利用率较高时，会发生同步状态。在此方案中，元数据容量为 99.91%：

admin@AVMR-SRV:~/>: mcserver.sh --status | grep metadata
  metadataUtilization (larger of (nstripes/totalStripesPermitted) or (stripeReserved/(nodeSizeAfterDiskReadOnly * stripeUtilizationCapacityFactor)) * 100): 99.91
admin@AVMR-SRV:~/>:

发生上述情况是因为对此 Avamar （GSAN） 执行了不正确的复制。还有其他因素可以增加元数据容量。有关详细信息，请参阅本文 Avamar 元数据容量解决路径 。

戴尔技术支持必须执行此过程。打开服务请求并提及此文章编号。内部注释部分介绍了戴尔技术支持的解决方案。