Supported File and File System Sizes for HFS and JFS Whitepaper

ManualsBrandsHP ManualsSoftwareHP-UX 11i Volume Management (LVM/VxVM) Software

Supported

File

and

File

System

Sizes

for

HFS

and

JFS

Executive

Summary

................................................................................................................................. 2

Hierarchical File System (HFS)

Supported

Sizes

........................................................................................... 2

JFS

(VxFS)

Supported

Sizes

....................................................................................................................... 3

Large

File

System

TB)

Compatibility

Issue

.......................................................................................... 5

Large

Files

with

Memory

Mapping

......................................................................................................... 5

Large

File

System

TB)

File

System

Block

Size

Issues

............................................................................ 5

JFS

Patches

................................................................................................................................. 6

Related Information

................................................................................................................................. 6

Summary of content (6 pages)

PAGE 1
Supported File and File System Sizes for HFS and JFS Executive Summary ................................................................................................................................. 2 Hierarchical File System (HFS) Supported Sizes ........................................................................................... 2 JFS (VxFS) Supported Sizes .......................................................................................................................
PAGE 2
Executive Summary Beginning with HP-UX 10.01, the supported sizes for files and file systems on HP-UX have gradually increased. This white paper summarizes the supported sizes for HP-UX 10.01 through HP-UX 11i v3 (B.11.31). Hierarchical File System (HFS) Supported Sizes Table 1 lists the maximum file and file system sizes that HFS supports.
PAGE 3
JFS (VxFS) Supported Sizes Table 2 lists the maximum file and file system sizes that the Journaled File System (JFS) supports. JFS is also known as the VERITAS File System (VxFS). Note: Although it may be possible to create files or file systems larger than these documented limits, HP does not support such files and file systems, and the results of using them may be unpredictable. HP-UX Release JFS Version Disk Layout Version Maximum Supported File Size 10.01 JFS 2.0 Version 21 2 GB 4 GB 10.
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available by contacting your HP representative. 9 OnlineJFS license on HP-UX 11iV3 JFS 5.0.1 and later versions enables file system upto 256TB. 10 JFS 5.1SP1 onwards supports Disk Layout Version 8.
PAGE 5
HP-UX 10.01 Compatibility Notes The following sections are relevant to HP-UX 10.01 versions and not applicable for HP-UX 11i v2 and 11i v3. Following are the topics covered in this section: • • • • Large File System Compatibility Issues Large Files with Memory Mapping Large File System (> 4 TB) File System Block Size Issues Related Patches Large File System (> 2 TB) Compatibility Issues • The ustat system call returns information about a mounted file system.
PAGE 6
Related JFS Patches Beginning with HP-UX 10.20, HP has introduced several patches to prevent the creation or extension of JFS file systems beyond the supported maximum size. For HP-UX 10.20, these patches follow: • PHCO_23035 s700_800 10.20 extendfs_vxfs(1M) cumulative patch • PHCO_23036 s700_800 10.20 fsadm_vxfs(1M) cumulative patch • PHCO_23037 s700_800 10.20 mkfs_vxfs(1M) cumulative patch For the latest information about available patches, see the IT Resource Center: 1.