DELL EMC Unity:升级到代码 5.1 后无法验证复制连接

Summary: 将代码升级到 5.1 后,复制连接验证失败,因为已将 ping 功能添加到验证代码中,但由于安全策略,某些客户在其环境中禁用了 ICMP。 解决方法是在客户环境中为复制接口对启用 ICMP。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

- 将代码升级到 5.1 后,客户能够恢复所有复制会话,但复制连接无法验证。

A 09/04/21 21:57:35.448 DART_REP 106c0891 [NOTICE] Audit:NAS 服务器组复制会话中的文件系统复制会话rep_sess_res_1_res_6_CETVXXXXX_CETVXXXXXX成功启动。
A 09/04/21 21:57:35.546 DART_REP 106c0891 [NOTICE] Audit:NAS 服务器组复制会话中rep_sess_nas_1_nas_3_CETVXXXXXX_CETVXXXXXX的 NAS 服务器复制会话成功启动。
B 09/04/21 21:58:03.345 Health 60771 [INFO] User:复制会话 rep_sess_res_1_res_6_CETVXXXXXX_CETVXXXXXX 正常运行
B 09/04/21 21:58:04.598 Health 60771 [INFO] User:复制会话rep_sess_nas_1_nas_3_CETVXXXXXX_CETVXXXXXX正常运行

B 09/04/21 22:06:25.212 ReplicPlugin 610012 [ERROR] Audit:本地用户/管理员无法验证远程系统连接RS_11。
B 09/04/21 22:06:25.251 Health 6077c [ERROR] User:远程系统连接无法验证两个系统之间的复制接口连接。

复制连接的运行状态在 GUI 或 uemcli 输出中为“无法验证”。

2:ID = RS_11
Name = XXXXXXXXXX001
Address = xx.xx.xx.xx
Alternate Management Address = xx.xx.xx.xx
Model = Unity 400
Serial number = CETVXXXXXX
Connection type = async
Source interfaces = xx.xx.xx.xx, xx.xx.xx.xx
Local interfaces = xx.xx.xx.xx, xx.xx.xx.xx
Remote interfaces = xx.xx.xx.xx, xx.xx.xx.xx
Operational status = Failed To Validate (0x840c) <<<<<<<<<<<<<<<
运行状况状态 = 次要故障 (15)
运行状况详细信息 = “一个或多个复制接口对在本地和远程系统之间遇到网络连接问题。(https://xx.xx.xx.xx/help/webhelp/en_US/index.html?#unity_t_replication_session_cannot_communicate_with_the_system.html [xx.xx.xx.xx]”
同步 FC 端口 =
带宽计划 = 使用可用带宽
当前带宽 = 使用可用带宽

提醒:
客户能够暂停/恢复现有复制会话,甚至创建新的复制会话,复制会话的数据传输似乎正常工作。 

Cause

- 从 cemtracer_dataprotection.log 中,由于无法 ping 目标复制接口,验证失败。

06 Sep 2021 02:24:29 - [DataProtectionStorageModel] ERROR -

{0:107288:261867001}
[13347|17923|f6c7ab40][operator() @ ../../../components/providers/osls/common/DataProtection/StorageModel/impl/ResourceReplicationSessionImpl.h:589] Ping failed: local ip: xx.xx.xx.xx
06 Sep 2021 02:24:29 - [DataProtectionStorageModel] ERROR -

{0:107288:295460565}
[13347|17922|f66feb40][operator() @ ./../../components/providers/osls/common/DataProtection/StorageModel/impl/ResourceReplicationSessionImpl.h:589] Ping failed: local ip: xx.xx.xx.xx
06 Sep 2021 02:24:30 - [DataProtectionStorageModel] ERROR -

{0:107288:402286177}
[13347|17924|f6c9bb40][operator() @ ./../../components/providers/osls/common/DataProtection/StorageModel/impl/ResourceReplicationSessionImpl.h:589] Ping failed: local ip: xx.xx.xx.xx
06 Sep 2021 02:24:30 - [DataProtectionStorageModel] ERROR -

{0:107288:408068717}
[13347|17925|f6cbcb40][operator() @ ./../../components/providers/osls/common/DataProtection/StorageModel/impl/ResourceReplicationSessionImpl.h:589] Ping failed: local ip: xx.xx.xx.xx

- 工程部门已确认 ping 是添加到 OE 版本 5.1

中的复制连接的新验证。在这种情况下,客户已确认他们确实在其环境中禁用了 ICMP。这不是代码错误,仅在禁用 ICMP 的环境中才会出现问题。 

Resolution

开发团队在 5.2 中添加了一个选项,以恢复到旧的非 ping 模式,以便复制验证在禁用 ICMP 的环境中工作。客户可以使用以下 uemcli 命令在两个阵列中的任何一个阵列上关闭“remoteSysInterfaceAutoPair”参数。默认情况下,此参数处于开启状态。
service@Unity spb:~/user# uemcli -u admin -p xxxxxxxx /sys/general set -remoteSysInterfaceAutoPair off
Operation completed successfully.

service@Unity spb:~/user# uemcli -u admin -p xxxxxxxx /sys/general show -detail
1:    System name = Unity
Model = Unity 680
UUID base = 0
Product serial number = CKMxxxxxxxxxxx
Auto failback = on
Health state = OK (5)
Health details = “The system is operating correctlyly.”
      功率(当前)= 570 瓦
功率(滚动平均值)= 572 瓦
支持的 SP 升级 = SP880
远程系统接口自动配对 = 关闭<<
<<<
如果客户尚无法将代码升级到 5.2,则客户可以在环境允许的情况下在其环境中为复制接口对重新启用 ICMP。 
Article Properties
Article Number: 000191785
Article Type: Solution
Last Modified: 16 Dec 2022
Version:  6
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