System Requirements

Verify that your environment meets the system requirements for IBM Spectrum Scale (GPFS).

Operating System

Operating System Version



AIX 7.2 64-bit


AIX 7.1 64-bit


AIX 6.1 64-bit



Red Hat Enterprise Linux/CentOS

Red Hat Enterprise Linux/CentOS 7.x with glibc 2.17.x or a more recent version

  • x86

  • x64

  • PowerPC

  • Compatible processors

Red Hat Enterprise Linux/CentOS 6.x with glibc 2.12.x

  • x86

  • PowerPC

  • Compatible processors

Red Hat Enterprise Linux/CentOS 6.x with glibc 2.12-1.25.x or a more recent version

  • x64

Red Hat Enterprise Linux/CentOS 5.x with glibc 2.5.x

  • x86

  • x64

  • PowerPC

  • Compatible processors

SuSE Linux (SLES)

SuSE Linux 12 (Initial Release/SP1/SP2/SP3/SP4/SP5) with glibc 2.19.x

  • x86

  • x64

  • PowerPC

  • Compatible processors

SuSE Linux 11 (Initial Release/SP1 and later SPs) with glibc 2.9.x and higher

  • x86

  • x64

  • PowerPC

  • Compatible processors

SuSE Linux 11(Initial Release/SP1/SP2/SP3/SP4) with glibc 2.11.x

  • x86

  • x64

  • PowerPC

  • Compatible processors

SuSE Linux 10 (Initial Release/SP1/SP2/SP3/SP4) with glibc 2.4.x

  • x86

  • x64

  • PowerPC

  • Compatible processors

Hard Drive


Space required


1 GB

Tmp folder

1024 MB

Job results folder

To calculate the disk space requirements for the job results directory, see Job Results Directory Disk Space Calculation.

Log folder (by default, /var/log)

1024 MB


If clustering is supported by the operating system, you can install the software on a cluster. For information about supported cluster types, see Support for Cluster Configuration.

Memory (RAM)

  • 2 GB or more

  • An additional 1.5 GB for every 500,000 folders in the backup data

Net-Tools Package

On Red Hat Enterprise Linux/CentOS 7.1 computers, make sure to install the net-tools package.

PowerPC Processor

Commvault supports both of the 64-bit PowerPC architectures: ppc64 (or "big endian") and ppc64le (or "little endian").


  • For operating systems versions that support the PowerPC architecture, refer to the supported operating systems table above.

  • Red Hat Enterprise Linux/CentOS 6.x with glibc 2.12.x on PowerPC architecture is not supported effective version 11. For more information about deprecated platforms, see End-of-Life, Deprecated and Extended Support - Platforms.

Schedule Jobs Using a Client Computer's Time Zone

The client computer has to be in one of the standard time zones recognized by the CommServe server. Otherwise, the CommServe server is not updated with the client computer's time zone and the jobs scheduled using the client computer's time zone might not run.


Use Commvault Driver Modules on a Linux Computer with UEFI Secure Boot Option Enabled

If the UEFI Secure Boot option is enabled on the Linux computer, Commvault keys must be enrolled in the MOK (Machine Owner Key) list stored in the UEFI NVRAM so that the kernel recognizes the signature of the Commvault driver modules. See Use Commvault Driver Modules on a Linux Computer with UEFI Secure Boot Option Enabled.

Supported Disks

Azure Ultra Disk Storage is supported.

Supported Linux File Systems

  • Azure Netapp Files (ANF) Service

  • B-tree File System (Btrfs)

  • Fraunhofer FS (FhGFS or BeeGFS)

  • Extended 2 File System (ext2)

  • Extended 3 File System (ext3)

  • Extended 4 File System (ext4)

  • Fujitsu Exabyte File System (FEFS)

  • General Parallel File System (GPFS)

  • Global File System (GFS/GFS2)

  • GlusterFS File System (GlusterFS): Backups and restores run on the Gluster client

  • Lustre File System (Clustered File System)

  • Moose File System (MooseFS)

  • Novell Storage Services (NSS): You can use the Linux File System agent to protect the NSS volumes. For NSS volumes to preserve the trustee information and permissions, you must enable the Linux extended attributes (XAttr) option prior to running a backup job. For more information on enabling the XAttr option, see the Novell documentation site. At the time of restore, you must select the Restore ACLs option to restore the trustee information and permissions along with the data.

  • Oracle Cluster File System (OCFS2)

  • Oracle ASM Cluster File System (Oracle ACFS)

  • Panasas ActiveScale File System (PanFS)

  • Reiser File System (reiserfs)

  • VERITAS File System (VxFS)

  • VERITAS Cluster File System (VxCFS)

  • X9000 IBRIX File System (IBRIXFS) 6.x

  • 'X' File System (XFS)

Supported Volume Managers

  • Veritas Volume Manager (VxVM) 5.0 or higher

  • Logical Volume Manager (LVM)

What Is Backed Up

Regular files and directories, including the following, are backed up:

  • Files that have holes

  • Raw device files

  • Files that have advisory locks

  • A maximum path level of 10 symbolic links pointing to each raw device

  • Files that have names that contain non-ASCII characters, if the appropriate locales are set

  • Shares that have Mac file system data

  • Symbolic links that are browsed or manually added to the data contents

  • Files that have a file path or a file name that contains more than 1023 characters


By default, files that have a mandatory lock are not backed up. To back up these files, see Configuring Backups for Locked Files.


Certain third-party software and service releases (together, "Releases") may not be supported by Commvault. You are solely responsible for ensuring Commvault’s products and services are compatible with any such Releases.