Novell OPEN ENTERPRISE SERVER - CONVERSION GUIDE 12-2010, Руководство по внедрению

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132 OES 2 SP3: Planning and Implementation Guide
of the number of files that are in the volume, and that performs well with small files. Best bets would
be ReiserFS, XFS, and NSS. Ext3 does not handle large systems well (where you have more than
10,000 files in the system).
Novell Cluster Services
Although Novell Cluster Services does not depend on a particular file system, you must use the
same file systems from node to node. For example, if you are using NSS on one node, you need to
use NSS on the failover node as well.
Dynamic Storage Technology
Dynamic Storage Technology does not depend on a particular file system in principle; however, it is
currently supported only on NSS volumes.
Novell plans to add support for additional file systems in the future. When that happens, it will be
important to remember that file systems cannot be mixed between volumes and shadow volumes.
For example, if you choose to shadow an NSS volume, the secondary volume must also be NSS.
13.2.5 NSS Planning Considerations
Consider the following when planning for NSS:

“Device Size Limit” on page 132

“Other NSS Planning Topics” on page 132
Device Size Limit
NSS recognizes logical or physical devices up to 2 terabytes (TB) in size. If you have a storage disk
larger than 2 TB, use the storage device’s management utility to carve the disk into smaller logical
devices to use with the NSS file system.
This is especially important to remember when planning for NSS volumes on Linux because the size
limit for Linux POSIX volumes is 8 TB.
Other NSS Planning Topics
To plan for NSS volumes—including prerequisites, security considerations, and moving volumes
between Linux and NetWare—see “
Planning NSS Storage Solutions ” in the OES 2 SP3: NSS File
System Administration Guide for Linux .
13.3 Coexistence and Migration of Storage
Services
The following sections summarize the coexistence and migration issues related to storage services.

Section 13.3.1, “MySQL,” on page 133

Section 13.3.2, “OES 2 Options,” on page 133

Section 13.3.3, “NetWare 6.5 SP8 Options,” on page 134