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应用程序崩溃,无法在 ONTAP 9.7 LUN 上运行

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14
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Public
Votes:
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Category:
ontap-9
Specialty:
san
Last Updated:

适用场景

 

  • ONTAP 9.7 及更高版本
  • Linux
  • 采用 ASMFD 的 Oracle ASM
  • MongoDB
  • GPFS

问题描述

  • 某些应用程序不遵守主机 SCSI 层的默认 max_扇 区 _kb ,需要通过自定义 udev 规则或 multipath.conf 配置进行自定义设置,使其大于默认值 64 KB 。
  • 如果主机的传输大小遵循 max_扇 区 _KB 设置 1024 ( 1MB ),并且配置的传输量大于 1024 ,则会还原为 64 KB 传输。  如果应用程序所需传输的数据超过 64 KB ,则它将无法正常运行。
  • 对于 ONTAP 9.7 全 SAN 阵列,将向主机返回非法请求,如果传输超过 1 MB ,则应用程序将无法正常运行。
  • 对于 ONTAP 9.7 ,非全 SAN 阵列传输超过 1 MB 将允许并记录调试消息 scsiblade.invalid.xfer.len 对于非所有 SAN 阵列,不会强制实施此限制 直到适用于非全 SAN 阵列的更高版本的 ONTAP 为止

Sat Sep 10 12:35:26 +0300 [NTAP-CLUS1-01: scsit_lu_1: scsiblade.invalid.xfer.len:notice]: Host type VMWARE sent command opcode 0x2a with a transfer length of 1212420 bytes, which exceeds the maximum of 1MB on LUN 80BdL+N-YTYV.

 

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