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Writing Data from a Mac 10.6 System to an NFS Share Is Slow

Publication Date:  2013-09-26 Views:  221 Downloads:  0

Issue Description

Product involved: N8500 V200R001C00
Application scenario: writing data from Mac 10.6 to an N8000 NFS share
When a user writes a large-sized file from Mac 10.6 to an NFS share of the N8000, clicking and dragging operations on Mac 10.6 reduce performance. On the Mac CLI, running ls -al also causes the data write performance of the NFS share to drop. After the file is written, the performance restores if the user writes new files from Mac 10.6 to the share.

Alarm Information


Handling Process

Advise your customer to upgrade Mac 10.6 to Mac 10.7.

Root Cause

When a file is being written from Mac 10.6 to the NFS share, clicking or dragging on the Mac interface affects the write request process. As a result, the Mac cache is improperly used, causing the write performance to drop.
This problem also occurs when a file is written from Mac 10.6 to an NFS share of EMC Unisphere vnxe3100a. This problem on Mac 10.6 has been resolved on Mac 10.7.