This is due to how WebSphere MQ accesses the disk: essentially, MQ can only respond to the commit when the relevant part of the disk platter has spun past the drive head.

这归因于WebSphere MQ访问磁盘的方式：实质上，MQ只能在磁盘的相关部分转过磁盘头时才响应commit 。

youdao

That way, we avoided having any other data written to the drive, and reduced any random head movement.

这样一来，我们避免了将任何其他数据写入驱动器，并减少了任何随机磁头的移动。

youdao

To house the turbines that create the electricity and to provide a sufficient head of water pressure to drive them efficiently.

一方面用于放置发电的涡轮，一方面提供足够的落差以有效的驱动涡轮。

youdao

"I drive everyone crazy trying to get the sound that I hear in my head to come out of the speakers.

VOA: special.2009.08.07

He clearly had drive and a head for business, but matchmaking?

CNN: eHarmony CEO meets controversial success

Like most tort cases, it begins with a tragic accident: The pitcher at an American Legion baseball game was killed by a line drive to the head.

FORBES: Montana Court Says Pitcher Needed Warning About Aluminum Bat

Every baseball season seems to bring at least one new report of a young pitcher or infielder gravely injured after taking a line drive to the head or the chest.

WSJ: Little League Bans Composite Bats