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EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Hardware
Symmetrix DMX-3
logical volume
capacities
The maximum number of logical volumes supported on Symmetrix
DMX-3 physical disk drives depends on the data protection used.
Table 13 on page 66 describes the logical volumes supported on
Symmetrix DMX disk drives.
Note: “Open systems hypervolumes” on page 127 or “Mainframe systems
hypervolumes” on page 132 contain more information on logical volumes.
Configuration requirements for Symmetrix systems vary according to the
applications used. To configure logical volumes for optimum Symmetrix
system performance, consult your local EMC Sales Representative.
The Symmetrix DMX-3 can support up to 64,000 logical volumes,
depending on the number of disk directors, the type of data
protection, and hardware configuration. Table 14 on page 67
describes the maximum logical volumes supported on DMX-3
systems by the number of drives, DA boards, and type of data
protection employed.
Note: “Logical volumes supported for DMX-3 systems” on page 67 shows
the maximum logical volumes available for the Symmetrix DMX-3 with the
number of disk drives stated and a homogeneous protection scheme on those
disk drives. The logical volume limit is a function of the number of disk
directors, disk drives, Enginuity level, and data protection type. Consult your
local EMC Sales Representative for currently supported logical volumes for
DMX-3 systems.
Table 13 Logical volumes supported on Symmetrix DMX-3 disk drives
Symmetrix DMX-3 disk drives and data protection
a
Maximum logical volumes
Logical volumes per disk drive with SRDF Protection (without local data protection) 160
Logical volumes per disk drive with RAID 1 Protection 173
Logical volumes per disk drive with RAID 5 (3+1) Protection 255
Logical volumes per disk drive with RAID 5 (7+1) Protection 255
Logical volumes per disk drive with RAID 6 (6+2) Protection 255
Logical volumes per disk drive with RAID 6 (14+2) Protection 255
Logical volumes per disk drive with RAID 10 Protection (mainframe data volumes only) 255
a. For information on Symmetrix DMX-3 data protection options, refer to Table 28 on page 189.
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