Export Cache Parameters
Overview
This function exports the setting information of the cache parameters for all the volumes at the same time.
- The following cache parameters can be exported.
Cache Page Capacity
Prefetch Limit (PL)
Force Prefetch Mode (FP)
Multi Writeback Count (MWC)
Prefetch Sequential Detect Count (PSDC)
Sequential Dirty Detect Count (SDDC)
Sequential Slope (SS)
Sequential Dirty Slope (SDS)
Sequential Parallel Multi I/O Count (SPMC)
Extreme Cache
Extreme Cache Pool
-
Cache parameters can be exported from "Standard", "WSV", "TPV", "FTV", "SDV", and "SDPV" type volumes. Note that "Cache Page Capacity" cannot be exported from "WSV", "TPV", and "FTV" type volumes. Note that "Extreme Cache" and "Extreme Cache Pool" cannot be downloaded from "SDV" and "SDPV" type volumes.
MWC for each TPP can also be exported.
Cache parameters for Deduplication/Compression Volumes cannot be obtained.
User Privileges
Availability of Executions in the Default Role
Default role | Availability of executions |
---|---|
Monitor | |
Admin | |
StorageAdmin | |
AccountAdmin | |
SecurityAdmin | |
Maintainer |
Refer to "User Roles and Policies" for details on the policies and roles.
Display Contents
Cache parameters for all the volumes are exported.
![](../images/VolumeExportCacheParameters.png)
Download Setting
Item | Description |
---|---|
Target |
The cache parameter that is to be exported is displayed. |
Cache Control Parameter List Information
Item | Description |
---|---|
Model Name |
The model name of the storage system is displayed. |
Serial No. |
The serial number of the storage system is displayed. |
Item | Description |
---|---|
Volume |
The volume number is displayed. When the volume is concatenated by LUN Concatenation or when the volume type is "WSV", "(concatenation order / total number of concatenated volumes)" is displayed after the volume number. |
Name |
The volume name is displayed. |
Type |
The volume type is displayed. Standard WSV TPV FTV SDV SDPV |
Cache Page Capacity |
The cache page capacity of the volume is displayed. A "-" (hyphen) is displayed when the volume type is "WSV", "TPV", or "FTV". Note that a "-" (hyphen) is displayed for a "Standard" type volume that is concatenated by the LUN Concatenation function. |
PL |
The Prefetch Limit (PL) of the volume is displayed. |
FP |
When the Force Prefetch Mode of the volume is enabled, "ON" is displayed. When the mode is disabled, "OFF" is displayed. |
MWC |
The Multi Writeback Count of the volume is displayed. A "-" (hyphen) is displayed when the volume type is "TPV" or "FTV". Note that a "-" (hyphen) is displayed for a "Standard" type volume that is concatenated by the LUN Concatenation function. |
PSDC |
The Prefetch Sequential Detect Count of the volume is displayed. |
SDDC |
The Sequential Dirty Detect Count of the volume is displayed. |
SS |
The Sequential Slope of the volume is displayed. |
SDS |
The Sequential Dirty Slope of the volume is displayed. |
SPMC |
The Sequential Parallel Multi I/O Count of the volume is displayed. |
Extreme Cache |
When Extreme Cache for the volume is enabled, "ON" is displayed. If disabled, "OFF" is displayed. A "-" (hyphen) is displayed for volumes that do not support the Extreme Cache. This item is displayed when Extreme Cache is enabled for the storage system. |
Extreme Cache Pool |
When Extreme Cache Pool for the volume is enabled, "ON" is displayed. If disabled, "OFF" is displayed. A "-" (hyphen) is displayed for volumes that do not support the Extreme Cache Pool. This item is displayed when Extreme Cache Pool is enabled for the storage system. |
When TPPs are registered, the MWC for each TPP is exported.
Item | Description |
---|---|
TPP No. |
The TPP number is displayed. |
Name |
The TPP name is displayed. |
MWC |
The Multi Writeback Count of the volume is displayed. |
Operating Procedures
Click [Export Cache Parameters] in [Action].
Click the [Export] button.
→ Exporting of the cache parameters is executed.
After the cache parameters are exported, a dialog box to download the file appears.
Click the [Download] button.
→ A dialog box to download the file appears.
Save the setting information file of the cache parameter.
The default file name is "CacheParam_serial number for the ETERNUS DX_YYYY-MM-DD_hh-mm-ss.txt".
(YYYY-MM-DD_hh-mm-ss: the date and time when the download screen (Step 3) is displayed.)
→ Downloading the setting information file starts.
Click the [Done] button to return to the screen when starting this function in Step 1.