Hitachi GR2000 Series Installation Manual page 215

Increment unit
Base
Add One MS64
Add One MS128
Add Two MS128s and
Remove Base (64MB)*
* Removed base memory of BCU can be utilized for RP memory increment.
Table 4-9 RP Memory Increment by RP Type
RP Type
RP-A1 or equivalent
GR2000-2S
64MB
128MB
---
256MB
Resulting Memory Capacity MB
Base
32
GR2000-4H,
GR2000-6H
BCU-S300S
BCU-H300H
BCU-M300H
BCU-L300H
128M
---
256MB
---
Add One MS64
96
GR2000-10H,
GR2000-20H
BCU-S850S
BCU-H850H
BCU-M850H
BCU-L850H
256MB
---
Add One MS1
Not applicab