Fujitsu ETERNUS DX60 S3 User Manual page 683

Appendix A Parameter List
A.1 System Management
Extreme Cache Pool
Availability of the EXC setting according to the number of installed PFMs
PFM installation
PFMs are
installed in all
of the CMs
PFMs are not installed in some CMs
No PFMs are installed in any CMs
Cache
Use RAID groups that are configured with SSDs installed in the CE or DE as the
secondary cache memory.
EXCP must be set for each CM. A different memory size can be set for each CM.
EXCP can only be used for Read I/O to a volume that is controlled by the
Controlling CM of the RAID group.
Enabling or disabling EXCP for each volume can be performed with ETERNUS Web
GUI. Refer to
•
For the ETERNUS DX100 S3/DX200 S3, a RAID group for EXCP is configured
with RAID0 (1D).
•
For the ETERNUS DX500 S3/DX600 S3, a RAID group for EXCP is configured
with RAID0 (1D), RAID0 (2D), RAID0 (3D), or RAID0 (4D).
•
For the ETERNUS DX8700 S3/DX8900 S3, a RAID group for EXCP is configured
with RAID0 (1D), RAID0 (2D), RAID0 (3D), or RAID0 (4D).
Available models are as follows:
•
ETERNUS DX100 S3
•
ETERNUS DX200 S3
•
ETERNUS DX500 S3
•
ETERNUS DX600 S3
•
ETERNUS DX8700 S3
•
ETERNUS DX8900 S3
The maximum available cache memory size (per CM) for each model is as fol-
lows.
•
For the ETERNUS DX100 S3/DX200 S3
400GB
•
For the ETERNUS DX500 S3/DX600 S3
1600GB
•
For the ETERNUS DX8700 S3/DX8900 S3
1600GB
The cache memory size depends on the capacity of the SSD registered as EXCP.
However, a capacity that exceeds the maximum available cache memory size
cannot be set. Refer to
The same number of
PFMs is installed
The number of
installed PFMs does
not match among the
CMs
ETERNUS Web GUI User's Guide (Settings)
Copyright 2015 FUJITSU LIMITED
Description
"3.14 Modify Cache Parameters" (page 316)
"Available EXCP memory size" (page 684)
Enabling or disabling EXC
ETERNUS ETERNUS
DX500 S3/ DX8700 S3/
DX600 S3 DX8900 S3
Available Available
Available Available
N/A Available
N/A N/A
683
for details.
for details.
Changing the EXC memory size
ETERNUS ETERNUS
DX500 S3/ DX8700 S3/
DX600 S3 DX8900 S3
Available Available
N/A Available
N/A Available
N/A N/A
P2X0-1270-13ENZ0