Showing posts with label calibrate. Show all posts
Showing posts with label calibrate. Show all posts

How to calculate IOPS in Exadata ?

When we think to calculate IOPS , it seems very difficult task but it’s very easy to calculate in Exadata Storage. Let’s understand the procedure to calculate IOPS.

Well, first of all, execute the calibrate command on all available cell storage.

We are doing testing on Exadata Database Machine X3-2 1/8th rack. Same procedure can be followed on any configuration of Exadata.

Cell Server 1

CellCLI> calibrate force

Calibration will take a few minutes...
Aggregate random read throughput across all hard disk LUNs: 1521 MBPS
Aggregate random read throughput across all flash disk LUNs: 8048.46 MBPS
Aggregate random read IOs per second (IOPS) across all hard disk LUNs: 2380
Aggregate random read IOs per second (IOPS) across all flash disk LUNs: 113116
Controller read throughput: 1974.08 MBPS


Cellcli - commands

Export 

CellCLI> export celldisk 

Import 

CellCLI> import celldisk 

Assign 

CellCLI> assign key 

Calibrate 

CellCLI> calibrate
CellCLI> calibrate force 

Set 

CellCLI> help set 
Usage: SET <variable> <value> 
Purpose: Sets a variable to alter the CELLCLI environment settings for your current session. 
Arguments: variable and value represent one of the following clauses: 
DATEFORMAT { STANDARD | LOCAL } 
ECHO { ON | OFF } 

Cellcli - Help

CellCLI> help
HELP [topic]
    Available Topics:
        ALTER
        ALTER ALERTHISTORY
        ALTER CELL
        ALTER CELLDISK
        ALTER GRIDDISK
        ALTER IBPORT
        ALTER IORMPLAN
        ALTER LUN
        ALTER PHYSICALDISK
        ALTER QUARANTINE
        ALTER THRESHOLD
        ASSIGN KEY
        CALIBRATE
        CREATE
        CREATE CELL
        CREATE CELLDISK
        CREATE FLASHCACHE
        CREATE GRIDDISK
        CREATE KEY
        CREATE QUARANTINE
        CREATE THRESHOLD
        DESCRIBE
        DROP
        DROP ALERTHISTORY
        DROP CELL
        DROP CELLDISK
        DROP FLASHCACHE
        DROP GRIDDISK
        DROP QUARANTINE
        DROP THRESHOLD
        EXPORT CELLDISK
        IMPORT CELLDISK
        LIST
        LIST ACTIVEREQUEST
        LIST ALERTDEFINITION
        LIST ALERTHISTORY
        LIST CELL
        LIST CELLDISK
        LIST FLASHCACHE
        LIST FLASHCACHECONTENT
        LIST GRIDDISK
        LIST IBPORT
        LIST IORMPLAN
        LIST KEY
        LIST LUN
        LIST METRICCURRENT
        LIST METRICDEFINITION
        LIST METRICHISTORY
        LIST PHYSICALDISK
        LIST QUARANTINE
        LIST THRESHOLD
        SET
        SPOOL
        START