IBM System Storage DS3500 User Manual

7914DS3KIntro_081410alw.fm Draft Document for Review March 28, 2011 12:24 pm
22 IBM System Storage DS3500: Introduction and Implementation Guide
This capability is shared across the DS3500 and DS3950 and the DS5000 midrange products
which allows for the remote location to be a consolidated collection site.
Up to eight mirrored pairs can be supported on the DS3500 and 64 mirrored pairs are
supported by the DS3950. For more information about Enhanced Remote Mirroring, see IBM
Midrange System Storage Copy Services Guide, SG24-7822.
2.5 DS3500 and DS3950 Comparisons
Table 2-2 shows the different capabilities of the new DS3000 product offerings for ease of
comparison.
Table 2-2 DS3500 and DS3950 Specification comparisons
Fully configured systems DS3500 DS3950
Host interfaces Eight 8 Gb/s FC and four 6 Gb/s
SAS
Eight 1 Gb/s iSCSI and four 6
Gb/s SAS
Four or eight 6 Gb/s SAS
Four 8 Gbps FC,
or Four 8 Gbps FC and four 1
Gbps iSCSI
Redundant drive channels Two 6 Gb/s SAS Four 4 Gb/s FC
Drive enclosures 12-drive (3.5-in) 2U
24-drive (2.5-in) 2U
16-drive (3.5-in) 3U
Max drives 48 standard
96 premium feature
112
Drives supported SAS, NL SAS, FDE FC,SATA, FDE
XOR engine Integrated XOR / P+Q Integrated XOR / P+Q
Dual Ethernet Yes Yes
Data cache / memory 2 or 4 GB 2 or 4 GB
Max logical drives 256 1,024
Max LUN size > 2TB > 2TB
RAID levels 1, 3, 5, 6, 10 1, 3, 5, 6, 10
Max RAID 10 / 0 size 96 drives 112 drives
Max RAID 3 / 5 / 6 size 30 drives 30 drives
Max partitions 64 128
Max snapshots per base
volume
88
Maximum remote mirrors
(across FC)
864

IBM System Storage DS3500 Specifications

General

Brand	IBM
Model	System Storage DS3500
Category	Storage
Language	English