Data Domain — 由于SIZE_DATA_BUFFERS_DISK更改为 1048576,Netbackup 还原失败 (1 MB)

Summary: 由于SIZE_DATA_BUFFERS_DISK更改为 1048576 (1 MB)(或类似的值),NetBackup 还原失败

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Symptoms

简要描述问题的症状。

1.出现以下错误,指向提供给 ddp_read() 函数的输入无效。
请注意“BytesToRead 1049088
 
# grep "Invalid Input" ddfs.info
04/05 12:11:53.220 (tid 0x7f10d4c767d0): WARNING: ddboost-<NBUhostname-49556>: ddboost_api ERROR: ddp_read() failed Offset 6447663616, BytesToRead 1049088, BytesRead 0 Err: 5008-Invalid Input
04/05 13:13:36.543 (tid 0x7f2e6250fba0): WARNING: ddboost-<NBUhostname-51986>: ddboost_api ERROR: ddp_read() failed Offset 2152738304, BytesToRead 1049088, BytesRead 0 Err: 5008-Invalid Input

2.DD Boost 客户端代码使 ddp_read() 的输入参数失效,因为最大大小为 1048576 (1024*1024)(在上面的示例中:“BytesToRead 1049088”,但高于 max 的任何值无效)


3.要读取的字节由应用程序提供。查看 NBU ADMIN 日志显示,以下错误情形多次出现。( 同样,BytesToRead 1049088 大于最大 值 1048576
 
344750:13:58:16.935 [10040.5420] <2> bp_sts_read_image_non_512: adjusting offset or length to a 512 byte boundry
344751-13:58:16.935 [10040.5420] <2> 21069286:bptm:10040:NBUhostname: C:\Program Files\Veritas\NetBackup\bin\\ost-plugins\libstspiDataDomain.dll:stspi_read_image image handle =00000000022FBA00 fd =1856884738 length =1049088 offset =2152695296
344752-13:58:16.935 [10040.5420] <16> 21069286:bptm:10040:NBUhostname: [2738:152C] ddp_read() failed Offset 2152695296, BytesToRead 1049088, BytesRead 0 Err: 5008-Invalid Input
344753-13:58:16.935 [10040.5420] <16> 21069286:bptm:10040:NBUhostname: C:\Program Files\Veritas\NetBackup\bin\\ost-plugins\libstspiDataDomain.dll:stspi_read_image STS_EPLUGIN [DDErrNo = 5008 (invalid argument)]
344754-13:58:16.935 [10040.5420] <2> set_job_details: Tfile (21069286): LOG 1649185096 32 bptm 10040 sts_read_image failed: error 2060046 bytes Read = 0plugin error
344755-13:58:16.935 [10040.5420] <2> send_job_file: job ID 21069286, ftype = 3 msg len = 93, msg = LOG 1649185096 32 bptm 10040 sts_read_image failed: error 2060046 bytes Read = 0plugin error 344750:13:58:16.935 [10040.5420] <2> bp_sts_read_image_non_512: adjusting offset or length to a 512 byte boundry

Cause

OST API sts_read_image调用中指定的读取字节的大小为 * 1049088,超过 1048576 (1 MB)*。
在确定要读取的大小时,NetBackup 错误地将 IsDisk 参数 512 添加到SIZE_DATA_BUFFERS_DISK设置 (1048576+512 = 1049088)。

参数的默认值为 - 262144 (256 K),但已更改为 1048576 (1 MB)

Resolution

可能的解决方案

1.通过在以下位置删除配置触控文件,恢复到默认大小 SIZE_DATA_BUFFERS_DISK 至 262144

Windows: install_path\Veritas\NetBackup\db\config\SIZE_DATA_BUFFERS_DISK

UNIX/Linux: /usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS_DISK

或者

2.将SIZE_DATA_BUFFERS_DISK降低到最大值 1048576 - 512 = 1048064。

提醒:NDMP 可处理 1024 块大小。推荐524288 (512k)。

Veritas 有关于此问题的知识库文章或支持文章。请参阅下面的

NDMP 还原失败并显示介质错误 EXIT STATUS 85 ”>此超链接会将您带往 Dell Technologies 之外的网站。

Affected Products

Data Protection, Data Domain, Data Domain, Data Domain Boost
Article Properties
Article Number: 000198367
Article Type: Solution
Last Modified: 09 Oct 2024
Version:  4
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