Dell DX6000G Informacje o wersji - Strona 6

Przeglądaj online lub pobierz pdf Informacje o wersji dla Serwer Dell DX6000G. Dell DX6000G 7 stron. Rack installation instructions — static rails
Również dla Dell DX6000G: Podręcznik użytkownika (48 strony), Instrukcja konfiguracji i ustawień (23 strony), Instalacja stojaka (2 strony), Instalacja stojaka (2 strony)

• Large NFS Writes with Slow Disks Due to the way NFS closes files, users writing large files

over NFS with slow disks in their CFS server may see multiple revisions of each file saved to DX

Storage instead of a single large file.

• Log Errors on Mac Clients Running Microsoft Powerpoint When opening and saving Mac

Microsoft Powerpoint files on a CIFS exported share, users may occasionally see warnings in the

log. These errors do not impact file data and are not visible from the actual application.

• Deleting While Writing over Samba When using a Samba mounted share, a delete issued for

a file that is being actively written may result in undeleteable hidden files that prevent a directory

from being deleted. Restarting Samba will eliminate these files and allow the directory to be

removed.

• File Sync Option In order to maximize performance with the CFS revisioning file system, files

written with the O_SYNC flag to the CFS file system are not synchronized to the spool directory

prior to reporting a success return code. Synchronizing each block can cause performance

degradation without guaranteeing greater reliability.

• ACLs Exceptions While default access ACLs can be set for a directory with CFS, child objects

do not always correctly inherit the default. Default ACLs are therefore not recommended for use

with CFS. Also, users with read-only ACLs permissions will also have execute permissions and

ACLs with masks are not supported.

• Creating Read-only Files Applications that utilize the open function with the O_CREAT and

O_RDONLY flags to create new, read-only files are not recommended for use with CFS 2.0 or

later, as this may cause these empty files to not be persisted to DX Storage until reopened.

1.6. Upgrading CFS

1.6.1. Upgrading from Versions 1.x

The 2.6 release now supports data migration from the previous 1.x versions of CFS that utilized a

MySQL database. Please contact your support resource for migration instructions.

1.6.2. Upgrading from Version 2.0

2.0 Ubuntu-based installations can migrate to 2.6 by installing a new Red Hat server with

configuration data and shares that exactly mirror the current installation and then switching out the

newly created CNS rootID with the previous Ubuntu-based one. The same DX Storage cluster must

be used for both the old and the new installation. Please reference the 'Restoring CFS' section of

the Setup and Configuration Guide for complete details.

1.6.3. Upgrading from Version 2.5

2.5 Red Hat-based installations can upgrade to 2.6 by stopping all services, installing the new

version and restarting. Please reference the Upgrading CFS section of the Setup and Configuration

Guide for complete details.

Special attention should be paid to the following items when using CFS:

• CNS Memory Utilization The Cluster Name Space (CNS) will use up to 2GB of RAM by default

and then gradually start to reclaim memory to keep the process close to 2GB of usage. The 2GB

soft limit can be modified if necessary. Please contact your support representative for modification

instructions.

Version 2.6.1

March 2011