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Parameters
Controller# is the controller number.
LogicalDrive# is the number of the logical drive. You can specify one or more logical drives.
Channel# is the channel number for the SSD.
Device# is the device number for the SSD.
Read#/Write# is the read/write ratio for invalidating data on the SSD. When the ratio is
reached, the page is removed from the cache. Values range from 1-10 for each parameter.
FlushAndFetchRate# is the read cache fetch rate from 1 to 1000: 1-50=Low, 51-100=Medium,
101-1000=High. The default is 100.
Note:
The lower the rate the longer the page is kept on the SSD before it is flushed from the
cache.
dirtyPageThreshold# controls the amount cache space allocated to "dirty" data; that is, data
that has not been committed to disk. The threshold value ranges from 1-100 (percent). Once
the percentage of dirty pages crosses the threshold, the data are flushed to disk.
Policy is the maxCache write cache policy:
WB - write back enabled. maxCache will store the data on the SSD and write it back to the
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hard disks when there is little or no impact on performance. This is the default policy.
INSTWB - instant write back enabled. In addition to the default policy, maxCache will
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create dirty pages on-the-fly for full-stripe writes if there is room on the SSD and the
number of dirty pages is below the threshold.
WT - write through enabled. Similar to instant write back, but full-stripe writes go to both
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the cache and hard disk and no dirty pages are created on-the-fly.
Clear clears the maxCache pool.
Examples
ARCCONF SETMAXCACHE 1 LOGICALDRIVE 1 READCACHE ENABLE
ARCCONF SETMAXCACHE 1 LOGICALDRIVE 1 WRITECACHE ENABLE WRITEPOLICY WT
ARCCONF SETMAXCACHE 1 DIRTYPAGETHRESHOLD 50
ARCCONF SETMAXCACHE 1 ADDTOPOOL 0 1
ARCCONF SETMAXCACHE 1 REMOVEFROMPOOL 0 1 0 2
ARCCONF SETMAXCACHE 1 RWBALANCE 4 1
ARCCONF SETMAXCACHE 1 FLUSHANDFETCHRATE 200
ARCCONF SETMAXCACHE 1 CLEAR
arcconf setname
Renames a logical drive.
Syntax
ARCCONF SETNAME <Controller#> LOGICALDRIVE <LogicalDrive#> <New Name>
Parameters
Controller# is the controller number
Chapter 2: Using the Command Line Utility
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