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EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Specifications
Storage control
Emulation 3990-6, 2105, 2107, and FBA
Channel speeds Up to 17 MB/s ESCON channel
Up to 4 Gb/s FICON channel
Up to 4 Gb/s Fibre Channel
Up to 1 Gb/s iSCSI channel
Up to 1 Gb/s GigE remote channel
Up to 1 Gb/s GigE IPv4/v6 (IPsec capable)
Storage capacities The following tables outline the minimum and maximum disk
capacities for the DMX-3 systems.
Tables 35 through 39 describe the DMX-3 disk capacities. The
capacities are presented based on the disk drive capacities of 73 GB,
146 GB, 300 GB, 450 GB, and 500 GB drives, and these methods of
data protection:
â—† Mirroring (RAID 1)
â—† RAID 5 (3+1) or (7+1)
â—† RAID 6 (6+2) or (14+2)
Note: The TB values shown in Tables 35 through 39 are based on
1 TB = 1000 * 1000 * 1000 * 1000 bytes.
A Symmetrix DMX-3 reserves two SFS logical volumes consisting of 6,140
cylinders each (slightly less than 6 GB). These volumes are protected using
mirroring, consuming slightly less than 24 GB total physical space.
For each pair of disk directors in a DMX-3 system, 160 GB of total capacity is
reserved for vaulting data from memory during system powerdown.
Actual usable capacity may vary depending on configuration and data
protection types used.
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