NetBackup SAN Client光纤连接
通常SAN Switch连接设计为:
在配置完成后,在JavaConsole中看不到设备,FT Media Server日志中可以看到:
0,51216,137,199,32,1448943642598,14971,1090509120,0:,20:parsing = >7.6.1.2 < ,23:parsePatchVersionString,1 0,51216,137,199,33,1448943642598,14971,1090509120,0:,12:theRest = >< ,23:parsePatchVersionString,1 \ 0,51216,199,199,33,1448943643588,14971,1125271872,0:,16:targets 2 luns 2,35:FTServerMgr_i::listAllPseudoDevices,1 0,51216,199,199,34,1448944596103,14971,1110579520,0:,212:A LOGO or link down was observed on PN=1 for 15 minutes. Please check the port-switch connectivity. Setting the port speed on the switch to Fixed instead of Auto-negotiate has been known to fix some login issues.,23:PerformDeadPortWatchDog,1 |
Client日志里可看到如下信息:
vxlogview -o 200 -d all 04/12/16 15:06:53.337 [Debug] NB 51216 nbftclnt 200 PID:48890074 TID:1 File ID:200 [No context] 1 / [FTClientMgr_i::scanDevices] Rescan of FT Devices not supported on this OS in this version |
在交换机查看端口状态:
sr-m-san-nbu02:FID128:admin> portstatsshow 8 er_enc_in 26412 Encoding errors inside of frames er_crc 2341 Frames with CRC errors |
明显可以看到有错误的生成。默认情况下SAN Switch端口速率为N8(自适应),解决办法是将更改连接**FT Media Server Target**的端口为指定速率,4gb是一个推荐值。
sr-m-san-nbu02:FID128:admin> portcfgspeed Error in input options Usage: portCfgSpeed PortNumber Speed_Level OR portcfgspeed -i <port_index | portindex_range> [-f] Speed_Level OR portcfgspeed <-slot | -s > <slot | slotrange> Speed_Level -i: Confirms port swap has been disabled and to give port index as operand -x: Confirms port swap has been disabled and to give port index in HEX format as operand -f: ignores non-existing indexes portindex_range: Specifies the range of port index <portindex1-portindex2> (example: 12-14) Speed_Level: 0 - Auto Negotiate (Hardware) 1 - 1Gbps 2 - 2Gbps 4 - 4Gbps 8 - 8Gbps 10 - 10Gbps 16 - 16Gbps ax - Auto Negotiate (Hardware) + retries s - Auto Negotiate (Software) sr-m-san-nbu02:FID128:admin> portcfgspeed -i 8-16 -f 4 |
更改后查看端口状态不再有错误增长即为正常,如果Client和FT Media Server连接到了不同的SAN Switch,SAN Switch之间的级连端口也要固定速率。
更改完成后可通过portcfgshow查看配置:
sr-m-san-nbu02:FID128:admin> portcfgshow 8 Area Number: 8 Octet Speed Combo: 1(16G|8G|4G|2G) Speed Level: 4G AL_PA Offset 13: OFF Trunk Port ON Long Distance OFF VC Link Init OFF Locked L_Port OFF Locked G_Port OFF Disabled E_Port OFF Locked E_Port OFF ISL R_RDY Mode OFF RSCN Suppressed OFF Persistent Disable OFF LOS TOV enable OFF NPIV capability ON QOS Port AE Port Auto Disable: OFF Rate Limit OFF EX Port OFF Mirror Port OFF SIM Port OFF Credit Recovery ON F_Port Buffers OFF E_Port Credits OFF Fault Delay: 0(R_A_TOV) NPIV PP Limit: 126 CSCTL mode: OFF D-Port mode: OFF D-Port over DWDM: OFF Compression: OFF Encryption: OFF FEC: ON |
SAN Switch端口默认启用Trunk,在没有License的情况下并不生效,所以可以忽略,Client连接到SAN Switch的端口启用了NPIV可能会对配置造成影响,这里不做讨论。
如果更改速率后错误仍旧产生,可通过portdisable和portenable禁用启用下端口。
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