Siemens Network Hardware SM2 monitoring system 用户手册
306
U3585-J-Z125-8-76
SYMMETRIX DEVICE report
SM2 reports
Monitoring information
CONTROLLER MN
Mnemonic name of an emulated 3860 controller.
In all SM2 output, two controller mnemonics are always output
(separated by a slash) for an emulated 3860 controller. The
following two variants are provided:
–
(separated by a slash) for an emulated 3860 controller. The
following two variants are provided:
–
alphanum-name 2..2
–
x-text 4..4
DEVICE MN
Mnemonic name of the device
READ
Number of read operations per device and per second
RD HIT
Percentage of read operations completed by the cache in relation to
the total number of read operations
the total number of read operations
WRITE
Number of write operations per device and per second
WR HIT
Percentage of write operations that did not need to be delayed (see
notes)
notes)
TOT HIT
Percentage of read and write operations completed by the cache in
relation to the total number of access operations executed
relation to the total number of access operations executed
Notes
The monitored data output here refers to the controller as a whole, i.e. it includes access
operations from other hosts.
operations from other hosts.
WR HIT:
All write operations are executed via the cache as fast writes. An exception are delayed
fast writes: if the cache is filled with unsaved write data, these may be forced to wait
temporarily for a cache slot to become available. A WR HIT is one write operation that
need not be delayed. Only very high write loads will cause the WR HIT rate to fall below
100%.
All write operations are executed via the cache as fast writes. An exception are delayed
fast writes: if the cache is filled with unsaved write data, these may be forced to wait
temporarily for a cache slot to become available. A WR HIT is one write operation that
need not be delayed. Only very high write loads will cause the WR HIT rate to fall below
100%.