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Figure 12 LDEV Striping Across four RAID5 (7D+1P) Array Groups
All drives and device emulation types are supported for LDEV striping. LDEV striping can
be used with all storage system data management functions.
Control unit images, logical volume images, and logical units
This section provides information about control unit images (CU), logical volume images
(LVI), and logical units (LU).
CU images
The storage system is configured with one control unit image for each 256 devices (one
SSID per 64 LDEVs or 256 LDEVs) and supports a maximum of 255 CU images in the
primary logical disk controller (LDKC).
The storage system supports the control unit (CU) emulation type 2107.
The mainframe data management features of the storage system can restrict CU image
compatibility.
Hitachi Virtual Storage Platform G1000, G1500, and VSP F1500 Hardware Guide
Control unit images, logical volume images, and logical units
Chapter 3: Hardware architecture
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