简介
本文档说明从源思科安全管理设备(SMA)到目标SMA的备份过程失败的原因，错误为“服务器拒绝漫游- [错误32]损坏的管道”。
背景信息
确保满足以下备份限制和要求：
- 相同的AsyncOS版本
- 网络中的目标SMA
- 使用安全外壳(SSH)的设备之间的通信
- 目标设备的容量相同或更高
- 一次仅运行一个备份进程
问题
将数据从一个SMA备份到另一个SMA时，备份会失败。请点击此处查看备份日志中显示的错误消息：
Wed Jun 11 15:40:07 2014 Warning: BACKUP: Errors: ssync errors during backup to
10.7.72.15, Reason: Server denied roaming - Write failed: Broken pipe - - errors:
"[Errno 32] Broken pipe" - Wed Jun 11 15:40:40 2014 Warning: BACKUP:
Errors: ssync errors during backup to
10.7.72.15, Reason: Server denied roaming - Write failed: Broken pipe - errors:
"[Errno 32] Broken pipe"
Wed Jun 11 15:40:40 2014 Warning: BACKUP: Failed: phase One for the service: isq
Wed Jun 11 15:40:57 2014 Critical: BACKUP: FAILED: Backup job(migrace) for
mgmt2.iol.cz scheduled to start at 11 June 2014, 15:34 to 10.7.72.15 failed with errors
- tracking:Server denied roaming - Write failed: Broken pipe - - errors:
"[Errno 32] Broken pipe"
isq:Server denied roaming - Write failed: Broken pipe - - errors: "[Errno 32]
Broken pipe" - isq:Server denied roaming - Write failed: Broken pipe - errors:
"[Errno 32] Broken pipe".
解决方案
当系统尝试继续并使用已关闭的连接时，通常会发生错误[Errno 32] Break管道错误。检查任何潜在的第2层问题，并使用CLI在两个SMA上查看etherconfig > media和netstat -ni的结果。
source_SMA> etherconfig
Ethernet interfaces:
1. Data 1 (100baseTX full-duplex: ) 00:1e:c9:51:9a:20
2. Data 2 (Autoselect: ) 00:1e:c9:51:9a:22
3. Management (100baseTX full-duplex: ) 00:10:18:34:d4:bf
source_SMA> netstat -ni
Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll
Data 2 1500 < Link#1 > 00:1e:c9:51:9a:22 0 0 0 0 0 0
Mana~t 1500 < Link#2 > 00:10:18:34:d4:bf 11081531 0 0 11779530 0 0
Mana~t 1500 10.7.72.0 10.7.72.18 1746167 - - 1870789 - -
Data 1 1500 < Link#3 > 00:1e:c9:51:9a:20 24323550 0 0 23750730 0 0
Data 1 1500 192.168.30.0 192.168.30.252 6139415 - - 6089676 - -
target_SMA> etherconfig
Ethernet interfaces:
1. Data 1 (100baseTX full-duplex: ) d4:ae:52:87:f4:44
2. Data 2 (Autoselect: ) d4:ae:52:87:f4:46
3. Data 3 (Autoselect: ) d4:ae:52:87:f4:48
4. Management (100baseTX full-duplex: ) d4:ae:52:87:f4:42
target_SMA> netstat -ni
Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll
Mana~t 1500 < Link#1 > d4:ae:52:87:f4:42 122700 62 0 12289 0 0
Mana~t 1500 10.7.72.0 10.7.72.15 38051 - - 1033 - -
Data 1 1500 < Link#2 > d4:ae:52:87:f4:44 154093 1235 0 54906 0 0
Data 1 1500 192.168.30.0 192.168.30.245 45116 - - 50445 - -
Data 2 1500 < Link#3 > d4:ae:52:87:f4:46 0 0 0 0 0 0
Data 3 1500 < Link#4 > d4:ae:52:87:f4:48 0 0 0 0 0 0
接收设备(target_SMA)显示Management和Data 1以太网接口上的输入错误。如果您检查target_SMA所连接的交换机，您会看到问题出在SMA和Cisco交换机之间的不兼容性。尽管自动检测接口速度和双工，但两台设备无法选择相同的设置。SMA检测到100baseTX全双工，但交换机上只有100baseTX半双工，因此必须配置为100baseTX全双工。
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