Maximum Capacity For A Logical Drive; Maximum Number Of Luns Per Host - IBM System Storage DS3500 Introduction And Implementation Manual

Draft Document for Review March 28, 2011 12:24 pm

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
Operating System
Linux
AIX
Windows
HP-UX 11i v2
ESX Server 3.5U5, 4.0U1 and
4.1
a. VxVM 3.5 only and OnlineJFS license for greater than 2 TB file systems (only HP-UX 11iV2 B.
11.23)

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
Host operating system type
AIX
HP-UX
Linux
Windows
ESX Server 3.5U5, 4.0U1 and
4.1
Note: The total number of logical drives on a DS3500 Storage System cannot exceed
2048.
File system
ext2
ext3
JFS2
NTFS
FAT32
HFS
JFS 3.5
VMFS
Maximum Number of LUNs
per host (theoretical OS limit)
64000
16000
256
256
256
Chapter 3. IBM System Storage DS3500 Storage System planning tasks
7914DS3KPlanning_090710.fm
Size
32 TB
32 TB
64 PB
16 EB
8 TB
128 GB
a1
2 TB / 32 TB
2TB / 64TB per VMFS
Maximum Number of logical
drives or LUNs per host
(DS3500 Storage System
limit)
255
255
255
255
255
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