Enable Write Caching on Hard Disks
According to Doc.no .:2PAA111708 we Enable Write Caching on Hard Disks ,but at all server this item is unchecked .my question is ,do i enable at this time، which all of those are running?
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Disk Write Cache is recommended in computer's running System 800xA.
In the image you posted, enable the first (upper) checkbox but not the second (lower).
If possible, read hardware manual - some RAID controllers require a battery backup to support write caching.
I cannot tell if you must reboot to have this setting take effect or not, try in some less important node first, or perform test in some non-800xA, but similar server.