Ds3500 And Ds3950 Comparisons - IBM System Storage DS3500 Introduction And Implementation Manual

7914DS3KIntro_081410alw.fm
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
Host interfaces
Redundant drive channels
Drive enclosures
Max drives
Drives supported
XOR engine
Dual Ethernet
Data cache / memory
Max logical drives
Max LUN size
RAID levels
Max RAID 10 / 0 size
Max RAID 3 / 5 / 6 size
Max partitions
Max snapshots per base
volume
Maximum remote mirrors
(across FC)
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IBM System Storage DS3500: Introduction and Implementation Guide
Draft Document for Review March 28, 2011 12:24 pm
DS3500
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
Two 6 Gb/s SAS
12-drive (3.5-in) 2U
24-drive (2.5-in) 2U
48 standard
96 premium feature
SAS, NL SAS, FDE
Integrated XOR / P+Q
Yes
2 or 4 GB
256
> 2TB
1, 3, 5, 6, 10
96 drives
30 drives
64
8
8
DS3950
Four 8 Gbps FC,
or Four 8 Gbps FC and four 1
Gbps iSCSI
Four 4 Gb/s FC
16-drive (3.5-in) 3U
112
FC,SATA, FDE
Integrated XOR / P+Q
Yes
2 or 4 GB
1,024
> 2TB
1, 3, 5, 6, 10
112 drives
30 drives
128
8
64