IBM DS3500 Introduction And Implementation Guide

Chapter 3. IBM System Storage DS3500 Storage System planning tasks 87
Draft Document for Review March 28, 2011 12:24 pm 7914DS3KPlanning_090710.fm
3.7.1 Maximum capacity for a logical drive
Table 3-7 shows the maximum capacity a logical drive can have and be formatted with a
specific file system.
Table 3-7 Maximum file system size supported by various operating systems
3.7.2 Maximum number of LUNs per host
The maximum number of LUNs that can be assigned to a host is dependent on the host
operating system type and mapping limit within a storage partition on the DS3500 Storage
System. At the time of writing, the DS3500 Storage System supports 32 LUNs per single
storage partition, and 256 LUNs support will soon follow. You can find more information about
storage partitioning in 3.3.7, “Storage partitioning” on page 63. Table 3-8 lists the operating
system limit as well as the limit of the DS3500 Storage System.
Table 3-8 Maximum number of LUNs per host
Operating System File system Size
Linux ext2 32 TB
ext3 32 TB
AIX JFS2 64 PB
Windows NTFS 16 EB
FAT32 8 TB
HP-UX 11i v2 HFS 128 GB
JFS 3.5 2 TB / 32 TB
a1
a. VxVM 3.5 only and OnlineJFS license for greater than 2 TB file systems (only HP-UX 11iV2 B.
11.23)
ESX Server 3.5U5, 4.0U1 and
4.1
VMFS 2TB / 64TB per VMFS
Host operating system type Maximum Number of LUNs
per host (theoretical OS limit)
Maximum Number of logical
drives or LUNs per host
(DS3500 Storage System
limit)
AIX 64000 255
HP-UX 16000 255
Linux 256 255
Windows 256 255
ESX Server 3.5U5, 4.0U1 and
4.1
256 255
Note: The total number of logical drives on a DS3500 Storage System cannot exceed
2048.

IBM DS3500 Specifications

General

Brand	IBM
Model	DS3500
Category	Storage
Language	English