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mobe_chang
2 Iron

avamar+Data Domain備份失敗

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各位好:

很久沒來,我又回來了,好像只要出現就會有問題~哀...

是這樣的,沉寂一陣子是因為之前一直為了avamar空間不足所苦,

現在公司終於買了一台Data Domain 2500

目前的架構是利用avamar將資料備份於Data Domain當作avamar 的空間,

我目前有另一台EMC VNX5300,裡面有相當多的檔案要透過一台Linux主機,

備份到Data Domain,而我要利用NDMP功能備份,但卻一直失敗,

嘗試很多方式,失敗都是如附件的錯誤資訊

以下截錄一小斷錯誤資訊~不知道是甚麼原因?

2014-08-07 09:20:35 avndmp Error <0000>: [snapup-/ckpt_APR_007] NDMP: SnapSure file system creation fails
2014-08-07 09:20:35 avndmp Error <15623>: [ndmp2avtar-/ckpt_APR_007/] Problem reading 65536 bytes from NDMP stream socket, at stream position 0: code 104: Connection reset by peer
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: A SnapSure failure may be the result of:
2014-08-07 09:20:35 avndmp Info <18443>: [ndmp2avtar-/ckpt_APR_007/] NDMP stream bytes read = 0, bytes written = 0
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: 1. an invalid path,
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: 2. insufficient space on the device,
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: 3. maxstreams set to a value greater than 4, or
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: 4. a need to increase the Data Mover NDMP parameter snapTimeout. Default is 5 minutes. It can be set to 30 minutes.
2014-08-07 09:20:35 avndmp Info <0000>: [snapup-/ckpt_APR_007] NDMP: See Celerra/VNX documentation for futher details.
2014-08-07 09:20:35 avndmp Warning <9655>: [snapup-/ckpt_APR_007] NDMP Data Halted, reason : NDMP_DATA_HALT_ABORTED
2014-08-07 09:20:35 avndmp Info <12161>: [snapup-/ckpt_APR_007] Canceling avtar because of filer specific error.
2014-08-07 09:20:35 avndmp Info <11595>: [snapup-/ckpt_APR_007] Cancelling avtar
2014-08-07 09:20:40 avndmp Info <6688>: [ctl_spawn] Process 30218 (/usr/local/avamar/bin/avtar) finished (code 163: externally cancelled)
2014-08-07 09:20:40 avndmp Warning <6690>: [ctl_spawn] CTL workorder "MOD-1407374195217#1" non-zero exit status 'code 163: externally cancelled'
2014-08-07 09:20:40 avndmp Info <11876>: [snapup-/ckpt_APR_007] Waiting for data transfer thread to exit
2014-08-07 09:20:40 avndmp Info <11886>: [snapup-/ckpt_APR_007] Waiting for volume /ckpt_APR_007 snapshot to be removed. Will stop waiting after 300 seconds.
2014-08-07 09:20:40 avndmp Info <11888>: [snapup-/ckpt_APR_007] Snapshot for volume /ckpt_APR_007 was removed after 0 seconds.
2014-08-07 09:20:40 avndmp Error <0000>: [snapup-/ckpt_APR_007] Backup for target /ckpt_APR_007 had errors.
2014-08-07 09:20:40 avndmp Info <11812>: [snapup-/ckpt_APR_007] Backup of '/ckpt_APR_007' aborted. Error in NDMP session.
2014-08-07 09:20:41 avndmp Info <11819>: [avndmp_assist] Thread exited with errors: /ckpt_APR_007
2014-08-07 09:20:41 avndmp Info <11821>: [avndmp_assist] Active threads: /ckpt_APR_006
2014-08-07 09:20:41 avndmp Error <0000>: [snapup-/ckpt_APR_006] NDMP: SnapSure file system creation fails
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: A SnapSure failure may be the result of:
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: 1. an invalid path,
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: 2. insufficient space on the device,
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: 3. maxstreams set to a value greater than 4, or
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: 4. a need to increase the Data Mover NDMP parameter snapTimeout. Default is 5 minutes. It can be set to 30 minutes.
2014-08-07 09:20:41 avndmp Info <0000>: [snapup-/ckpt_APR_006] NDMP: See Celerra/VNX documentation for futher details.
2014-08-07 09:20:41 avndmp Warning <9655>: [snapup-/ckpt_APR_006] NDMP Data Halted, reason : NDMP_DATA_HALT_ABORTED
2014-08-07 09:20:41 avndmp Info <12161>: [snapup-/ckpt_APR_006] Canceling avtar because of filer specific error.
2014-08-07 09:20:41 avndmp Info <11595>: [snapup-/ckpt_APR_006] Cancelling avtar
2014-08-07 09:20:46 avndmp Info <6688>: [ctl_spawn] Process 30113 (/usr/local/avamar/bin/avtar) finished (code 163: externally cancelled)
2014-08-07 09:20:46 avndmp Warning <6690>: [ctl_spawn] CTL workorder "MOD-1407374195217#2" non-zero exit status 'code 163: externally cancelled'
2014-08-07 09:20:47 avndmp Info <11876>: [snapup-/ckpt_APR_006] Waiting for data transfer thread to exit
2014-08-07 09:20:47 avndmp Info <11886>: [snapup-/ckpt_APR_006] Waiting for volume /ckpt_APR_006 snapshot to be removed. Will stop waiting after 300 seconds.
2014-08-07 09:20:47 avndmp Info <11888>: [snapup-/ckpt_APR_006] Snapshot for volume /ckpt_APR_006 was removed after 0 seconds.
2014-08-07 09:20:47 avndmp Error <0000>: [snapup-/ckpt_APR_006] Backup for target /ckpt_APR_006 had errors.
2014-08-07 09:20:47 avndmp Info <11812>: [snapup-/ckpt_APR_006] Backup of '/ckpt_APR_006' aborted. Error in NDMP session.
2014-08-07 09:20:47 avndmp Info <11819>: [avndmp_assist] Thread exited with errors: /ckpt_APR_006
2014-08-07 09:20:47 avndmp Info <11821>: [avndmp_assist] Active threads:
2014-08-07 09:20:48 avndmp Info <11786>: [avndmp_ctl_sup] Threads successfully completed 0, canceled/aborted 0, failed 2
2014-08-07 09:20:48 avndmp Info <7271>: [avndmp_ctl_sup] Final summary generated subwork 2, cancelled/aborted 0, snapview 0, exitcode 157

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mobe_chang
2 Iron

Re: avamar+Data Domain備份失敗

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Dear all:

結果後來請同事修改了一下防火牆後,目前已手動執行正常備份了。

感謝各位

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版主

Re: avamar+Data Domain備份失敗

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Hi Mobe welcome back!

你先对比一下下表,看看你的环境是否满足条件。Avamar版本需要7.0以上,VNX5300的file版本要7.0以上才能使用Avamar将VNX5300的数据备份到DD中。

Avamar NMDP backup with DD.png

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版主
版主

Re: avamar+Data Domain備份失敗

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还有几个可能性供你参考:

1. 配置NDMP accelerator的时候不能创建超过四个client instance(客户端实例)。

2. SnapSure创建filesystem失败有可能是因为超时(即没有足够时间去创建snapshot),或者VNX上没有足够的磁盘空间。又或者没有足够的checkpoint(检查点)空间开销。

3.  参考下面这个KB的解决方法,将snapsure功能关闭后进行备份看看O不OK。

https://emc--c.na5.visual.force.com/apex/KB_BreakFix_1?id=kA1700000000Uho

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mobe_chang
2 Iron

Re: avamar+Data Domain備份失敗

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Hi Leo:

1. 確認了版本,avamar 是 7.0.2-43,VNX5300是 7.1.65-8 ,

2.參考的KB我好像沒有權限可以看到~~

可以協助截錄下來嗎,非常感謝~

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版主
版主

Re: avamar+Data Domain備份失敗

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这个KB是客户可以看到的啊~ 无所谓,我给你贴出来,你试试里面的解决方案看看。

avndmp NDMP Error: SnapSure file system creation fails

Symptoms

Error <0000>: NDMP Error: SnapSure file system creation fails
Warning <9605>: NDMP Data Halted, reason : NDMP_DATA_HALT_ABORTED
avndmp Info <6651>: Process 20750 (/usr/local/avamar/bin/avtar) finished (code 163: Externally cancelled)


Cause

The volume in question was read-only and did not allow snaps to be taken.  A writeable snap (r/w) can be taken from a read-only (r/o) snap but another read-only one cannot.  By default avndmp has snapsure=true flag enabled for NDMP celerra backups.  It assumes that snapsure function is enabled for the requested volume Celerra for backup.

Resolution

Disable the snapsure feature for NDMP backups:

1.If all the volumes do not need snapsure enabled, create the file avndmp.cmd for the affected client (on the accelerator node location is - /usr/local/avamar/var/<affected_client> and add --nosnapsure to it

2.Modify the Celerra dataset and add the following attribute [avndmp]nosnapsure and have the value set to "true".
[avndmp]nosnapsure=true

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mobe_chang
2 Iron

Re: avamar+Data Domain備份失敗

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Hi Leo:

太感謝您了~

不過還是看不懂Resolution中的解釋,要如何關閉snapsure~

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mobe_chang
2 Iron

Re: avamar+Data Domain備份失敗

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Dear all:

剛剛不死心,在做了一些測試,發現有的空間可以備份成功,

請教這樣的話是不是就是空間問題?

可是我目前VNX5300整體還有空間,是否是要看每個volumes的空間還有多少?

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mobe_chang
2 Iron

Re: avamar+Data Domain備份失敗

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Dear all:

結果後來請同事修改了一下防火牆後,目前已手動執行正常備份了。

感謝各位

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版主
版主

Re: avamar+Data Domain備份失敗

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Mobe,很高兴看到你解决了问题。多谢更新~

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