H3C UniServer R4300 G6, Руководство пользователя

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{ra|nora}
: Specifies the read cache policy. When reading data from RAID, the ra policy enables
the system to read the surrounding data and store them in the cache at the same time. When the
user accesses these data subsequently, they can be directly read from the cache, which reduces
the disk seeking time and improves read performance.
Usage guidelines
If multiple storage controllers exist, use the
storcli64 /call show
command to obtain a
controller ID.
Examples
[root@localhost home]# ./storcli64 /c0/v0 set wrcache=awb
CLI Version = 007.1017.0000.0000 May 10, 2019
Operating system = Linux 4.18.0-193.el8.x86_64
Controller = 0
Status = Success
Description = None
Detailed Status :
===============
---------------------------------------
VD Property Value Status ErrCd ErrMsg
---------------------------------------
0 wrCache AWB Success 0 -
---------------------------------------
[root@localhost home]# ./storcli64 /c0/v0 set rdcache=nora
CLI Version = 007.1017.0000.0000 May 10, 2019
Operating system = Linux 4.18.0-193.el8.x86_64
Controller = 0
Status = Success
Description = None
Detailed Status :
===============
---------------------------------------
VD Property Value Status ErrCd ErrMsg
---------------------------------------
0 rdCache NoRA Success 0 -
---------------------------------------
Setting the RAID access policy
Perform this task to configure the read and write permissions for RAID.
Syntax
storcli64 /ccontroller_id/vraid_id set accesspolicy={rw|ro|blocked}